TY - CONF A1 - Habel, Wolfgang T1 - Validierung eines faseroptischen Drucksensors für den Einsatz in Spannungsgebern T2 - Expertenforum "Faseroptische Sensoren in der praktischen Anwendung" im Rahmen des GESA-Arbeitskreises AK 17: Faseroptische Messverfahren CY - Berlin, Germany DA - 2004-01-27 PY - 2004 AN - OPUS4-4779 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Entwicklungstrends in der Fasersensorik - Bericht von der OFS 16 im Oktober 2003 in Nara/Japan T2 - Expertenforum "Faseroptische Sensoren in der praktischen Anwendung" im Rahmen des GESA-Arbeitskreises AK 17: Faseroptische Messverfahren CY - Berlin, Germany DA - 2004-01-27 PY - 2004 AN - OPUS4-4781 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fiber optic sensors - research activities and application examples of the Federal Institute for Materials Research and Testing (BAM) in Germany T2 - Invited lecture at the University of Illinois CY - Chicago, IL, USA DA - 2004-03-11 PY - 2004 AN - OPUS4-4782 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fiber optic sensors for deformation measurements: criteria and method to put them to the best possible use T2 - Invited presentation at the SPIE Conference "Smart Structures and Materials", SS 02 CY - San Diego, CA, USA DA - 2004-03-15 PY - 2004 AN - OPUS4-4784 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre optics Fabry-Pérot sensors, applications and reliability aspects T2 - Invited lecture at the Fibre Optic Workshop within the 1st FIG International Symposium on Engineering Surveys for Construction Works and Structural Engineering, University of Nottingham CY - Nottingham, England DA - 2004-06-29 PY - 2004 AN - OPUS4-4800 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fasersensorik-Aktivitäten der BAM im Dienst der Werkstoffentwicklung, Bauteilüberwachung und Anlagentechnik T2 - POF-IGF-Sondertreffen CY - Nuremberg, Germany DA - 2004-07-09 PY - 2004 AN - OPUS4-4801 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Struktur-integrierbare Sensorik für die Charakterisierung des Werkstoffverhaltens und für Online-Bauteilüberwachung T2 - Airbus-Seminar "Structural Health Monitoring" CY - Bremen, Germany DA - 2004-09-06 PY - 2004 AN - OPUS4-4802 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Faseroptische Sensorik für die Werkstoffforschung und für Bauwerk-Monitoring T2 - Arbeiskreis 22 der GESA CY - Berlin, Germany DA - 2004-09-17 PY - 2004 AN - OPUS4-4803 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lebid, Solomija A1 - Gutmann, Toivo A1 - Habel, Wolfgang A1 - Peupelmann, J. A1 - Schäfer, C. T1 - Influence of Perturbing Effects on Composite-embedded Fibre Bragg Grating Signals PY - 2002 SN - 1430-3698 SN - 1437-7624 VL - 10 SP - 41 EP - 46 PB - Hochschule Mittweida CY - Mittweida AN - OPUS4-2076 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Habel, Wolfgang T1 - Monitoring des Lehrter Bahnhofs in Berlin mit einem komplexen, redundanten Messsystem PY - 2002 SN - 1430-3698 SN - 1437-7624 VL - 10 SP - 30 EP - 40 PB - Hochschule Mittweida CY - Mittweida AN - OPUS4-2077 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Lebid, Solomija A1 - Habel, Wolfgang A1 - Daum, Werner T1 - How reliable measure composite-embedded FBG sensors under the influence of transverse and point-wise deformations? T2 - 16th International Conference on Optical Fiber Sensors (OFS-16) CY - Nara, Japan DA - 2003-10-13 PY - 2003 SN - 4-89114-036-4 SP - 46 EP - 49 PB - IEICE CY - T¯oky¯o AN - OPUS4-2887 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lebid, Solomija A1 - Gutmann, Toivo A1 - Habel, Wolfgang T1 - Characterisation of high-perfomance composites by using structure-integrated FBG sensors T2 - International Conference on Materials Testing ; TEST Kongress ; TEST Conference CY - Nuremberg, Germany DA - 2003-05-13 PY - 2003 IS - A 3.1 SP - 59 EP - 64 PB - AMA Service GmbH CY - Wunstorf AN - OPUS4-2888 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang A1 - Kohlhoff, Harald A1 - Niemann, Joachim T1 - Das BAM-Monitoringsystem zur Überwachung der äußeren Betonbrücken im neuen Lehrter Bahnhof in Berlin T2 - 21. GESA-Symposium 2003 CY - Braunschweig, Deutschland DA - 2003-06-12 PY - 2003 SN - 3-18-091757-1 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte IS - 1757 SP - 233 EP - 243 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-2889 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang T1 - Faseroptische Sensoren für Deformationsmessungen - Kriterien für eine zuverlässige Nutzung T2 - 21. GESA-Symposium 2003 CY - Braunschweig, Deutschland DA - 2003-06-12 PY - 2003 SN - 3-18-091757-1 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte IS - 1757 SP - 141 EP - 158 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-2890 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang ED - Natau, O. ED - Fecker, E. ED - Pimentel, E. T1 - Long-term monitoring of 4500 kN rock anchors in the Eder gravity dam using fibre-optic sensors T2 - International Symposium on Geotechnical Measurements and Modelling CY - Karlsruhe, Germany DA - 2003-09-23 PY - 2003 SN - 90-5809-603-3 SP - 347 EP - 354 PB - Balkema CY - Lisse AN - OPUS4-2891 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang ED - Udd, E. T1 - Fiber optic sensors for deformation measurements - criteria and method to put them to the best possible use T2 - Conference 2004 CY - San Diego, CA, USA DA - 2004-03-15 KW - Fiber optic sensor KW - Reliability KW - Long-term stability KW - Structure monitoring KW - Materials investigation KW - Guidelines KW - Validation PY - 2004 SN - 0-8194-5301-3 DO - https://doi.org/10.1117/12.539801 SN - 1605-7422 N1 - Serientitel: SPIE proceedings series – Series title: SPIE proceedings series IS - 5384 SP - 158 EP - 168 PB - SPIE CY - Bellingham, Wash. AN - OPUS4-3845 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lebid, S. A1 - Habel, Wolfgang A1 - Daum, Werner T1 - How to reliably measure composite-embedded fibre Bragg grating sensors influenced by transverse and point-wise deformations? N2 - Embedded conventional fibre Bragg grating (FBG) sensors with acrylate coating have been chosen for monitoring novel textile-reinforced composite materials with a complicated wavy structure as a result of reinforcing textures. Problems of monitoring this type of material occur due to the harsh fabrication technology of the composite and its complicated structure. Embedded fibre sensors are exposed to the influence of transverse and point-wise deformations. To what extent will these effects influence the measurement signal of a sensor? Temperature cycles, tension and vibration tests were carried out to answer this question. Transverse and point-wise deformation and micromechanical indentation tests on non-embedded FBG sensors were carried out to clarify the reliability of recorded signals. KW - FBG sensors KW - Textile-reinforced composites KW - Measurement reliability PY - 2004 UR - http://www.iop.org/EJ/abstract/0957-0233/15/8/001/ DO - https://doi.org/10.1088/0957-0233/15/8/001 SN - 0957-0233 SN - 1361-6501 VL - 15 SP - 1441 EP - 1447 PB - IOP Publ. Ltd. CY - Bristol AN - OPUS4-3846 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Hofmann, Detlef A1 - Basedau, Frank A1 - Habel, Wolfgang A1 - Gloetzl, R. ED - López-Higuera, J. M. T1 - Lightning-safe diaphragm pressure gauge for geotechnical applications using a long-term reliable absolute EFPI sensor T2 - 2nd European Workshop on Optical Fibre Sensors ; 2nd EWOFS '04 CY - Santander, Spain DA - 2004-06-09 KW - Pressure sensor KW - Fibre Fabry-Pérot interferometer KW - Geotechnical application KW - Precise deformation measurement KW - Long-term stability PY - 2004 SN - 0-8194-5434-6 DO - https://doi.org/10.1117/12.566543 SN - 0038-7355 N1 - Serientitel: SPIE proceedings series – Series title: SPIE proceedings series IS - 5502 SP - 128 EP - 131 PB - SPIE CY - Bellingham, Wash. AN - OPUS4-3844 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Lightning-safe diaphragm pressure gauge for geotechnical applications using a long-term reliable absolute EFPI sensor T2 - European Workshop on Optical Fibre Sensors 2004 CY - Santander, Spain DA - 2004-06-09 PY - 2004 AN - OPUS4-4181 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fasernoptische Sensoren für Deformationsmessungen - Krieterien für eine zuverlässige Nutzung T2 - GESA-Symposium 2003, Sicherheit und Wirtschaftlichkeit durch Messtechnik, Monitoring und Beanspruchungsanalyse CY - Braunschweig, Germany DA - 2003-06-12 PY - 2003 AN - OPUS4-5115 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Long-term monitoring of 4500 kN rock anchors in the Eder gravity dam using fibreoptic sensors T2 - International Symposium on Geotechnical Measurement and Modelling CY - Karlsruhe, Germany DA - 2003-09-23 PY - 2003 AN - OPUS4-5116 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Bauteil-integrierbarer faseroptischer pH-Sensor zur Schadensfrüherkennung und Standsicherheitserhöhnung im Stahlbetonbau/Spannbetonbaau und in der Geotechnik T2 - BAM -Sonderkolloquium CY - Berlin, Germany DA - 2003-09-16 PY - 2003 AN - OPUS4-5117 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Das BAM-Monitoringsystem zur Überwachung der äußeren Betonbrücken im neuen Lehrter Bahnhof in Berlin T2 - GESA-Symposium 2003, Sicherheit und Wirtschaftlichkeit durch Messtechnik, Monitoring und Beanspruchungsanalyse CY - Braunschweig, Germany DA - 2003-06-12 PY - 2003 AN - OPUS4-5118 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Reliability testing methods for polymer optical fibres T2 - COST 270, Meeting of Working Group 2 on "Modified reliability and perfomance of applied optical fibres" CY - Berlin, Germany DA - 2003-02-28 PY - 2003 AN - OPUS4-5119 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Characterisation of high-perfomance composites by using structure-integrated FBG sensors T2 - Test 2003, International Conference on Materials Testing CY - Nuremberg, Germany DA - 2003-05-13 PY - 2003 AN - OPUS4-5130 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - How reliable measure composite-embedded FBG sensors under the influence of transverse and point-wise deformations? T2 - 16. International Conference on optical Fiber Sensor CY - Nara, Japan DA - 2003-10-13 PY - 2003 AN - OPUS4-5134 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Validierung faseroptischer Sensoren T2 - Test 2003, International Conference on Materials Testing CY - Nuremberg, Germany DA - 2003-05-13 PY - 2003 AN - OPUS4-5165 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Standardised and particular methods for reliability testing of polymer optical fibres T2 - COST 270 Meeting CY - Rome, Italy DA - 2003-04-02 PY - 2003 AN - OPUS4-5110 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Faseroptische Sensoren in Bauwesen - Messprinzipen und Einsatzmöglichkeiten T2 - Geodätisches Kolloquium an der Bauhaus-Universität Weimar CY - Weimar, Germany DA - 2003-04-10 PY - 2003 AN - OPUS4-5114 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Einsatz faseroptischer Sensoren in der Werkstoffforschung und für die Bauwerküberwachung T2 - Eingeladener Vortrag im Forschungszentrum Karlsruhe CY - Karlsruhe, Germany DA - 2004-04-26 PY - 2004 AN - OPUS4-5322 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Der "gläserne" Bahnhof - Bauwerksicherheit durch Sensorik T2 - Abendvortrag im Rahmen der Tage der Technik in der BAM CY - Berlin, Germany DA - 2004-05-14 PY - 2004 AN - OPUS4-5323 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Dantan, Nathalie A1 - Habel, Wolfgang A1 - Wolfbeis, Otto S. ED - Udd, E. T1 - Fiber optic pH sensor for early detection of danger of corrosion in steel-reinforced concrete structures T2 - 12th SPIE International Symposium "Smart Structures and Materials 2005 CY - San Diego, CA, USA DA - 2005-05-06 KW - Korrosion KW - Stahlbeton KW - Monitoring KW - pH KW - Faseroptischer Sensor KW - Langzeitstabilität KW - Indikator KW - Immobilisierung KW - Corrosion KW - Steel-reinforced concrete KW - Fiber optic sensor KW - Long-term stability KW - Indicator KW - Immobilization PY - 2005 SN - 0-8194-5739-6 SN - 1605-7422 N1 - Serientitel: SPIE proceedings series – Series title: SPIE proceedings series IS - 5758 SP - 274 EP - 284 PB - SPIE CY - Bellingham AN - OPUS4-11768 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Gloetzl, R. A1 - Hofmann, Detlef A1 - Basedau, Frank A1 - Habel, Wolfgang ED - Udd, E. T1 - Geotechnical Pressure Cell Using a Long-Term Reliable High-Precision Fibre Optic Sensor Head T2 - 12th SPIE International Symposium "Smart Structures and Materials 2005 CY - San Diego, CA, USA DA - 2005-03-06 KW - Pressure sensor KW - Fabry-Pérot interferometer KW - Geotechnics KW - Deformation measurement KW - Long-term stability PY - 2005 SN - 0-8194-5739-6 SN - 1605-7422 N1 - Serientitel: SPIE proceedings series – Series title: SPIE proceedings series IS - 5758 SP - 248 EP - 253 PB - SPIE CY - Bellingham AN - OPUS4-11769 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang A1 - Gutmann, Toivo T1 - Embedded Quasi-distributed Fibre Optic Sensors for Long-term Monitoring of 4,500 kN Rock Anchors in the Eder Gravity Dam in Germany T2 - 2nd International Conference on Structural Health Monitoring and Intelligent Infrastructure CY - Shenzhen, China DA - 2005-11-16 PY - 2006 SN - 0-415-39652-2 VL - 1 SP - 289 EP - 297 PB - Taylor & Francis CY - London AN - OPUS4-11770 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang T1 - Selected Examples of Use of Fibre Optic Sensors in Civil Engineering and Geotechnics T2 - International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS´2005) CY - Nanjing, PR China DA - 2005-11-20 KW - Fibre optic sensor KW - Pressure sensor KW - pH value KW - Corrosion KW - Civil engineering KW - Mortar deformation KW - Concrete shrinkage KW - Long-term stability KW - Reliability KW - Data evaluation PY - 2005 VL - 1 SP - 186 EP - 202 CY - Nanjing AN - OPUS4-11772 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Guidelines and standards for fiber optic sensors -Quo vadis? T2 - SPIE-Konferenz on Smart Structures and Materials CY - San Diego, CA, USA DA - 2006-02-26 PY - 2006 AN - OPUS4-12049 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Evaluation of the Adhesion Behaviour of Optical Fibers for Sensors Embedded in Cementitiuos Materials T2 - International Workshop on Fiber Optic Sensors for Construction Materials and Bridges CY - Newark, NJ, USA DA - 1998-05-03 PY - 1998 AN - OPUS4-12091 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Dantan, Nathalie A1 - Habel, Wolfgang A1 - Hillemeier, B. A1 - Hüttl, R. A1 - Dietz, K. T1 - Bauteil-integrierbarer faseroptischer pH-Sensor zur Schadensfrüherkennung im Stahlbeton- und Spannbetonbau T2 - DGZfP-Fachtagung Bauwerksdiagnose "Praktische Anwendungen Zerstörungsfreier Prüfungen" CY - Berlin, Deutschland DA - 2006-02-22 KW - Korrosion KW - Stahlbewehrung KW - Monitoring KW - pH-Optode KW - Langzeitstabilität PY - 2006 SN - 3-931381-71-4 SP - 225 EP - 232 PB - DGZfP CY - Berlin AN - OPUS4-12201 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dantan, Nathalie A1 - Habel, Wolfgang T1 - Monitoring of corrosion protection - A concrete-embeddable pH optode / Überprüfung des Korrosionsschutzes - Die bauteil-integrierbare pH-Optode KW - Korrosion KW - Stahlbewehrung KW - Monitoring KW - Bauteil-integrierbare pH Optode PY - 2006 SN - 0373-4331 N1 - Sprachen: Deutsch/Englisch - Languages: German/English VL - 72 IS - 3 SP - 48 EP - 55 PB - Bauverl. BV CY - Gütersloh AN - OPUS4-12202 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dantan, Nathalie A1 - Habel, Wolfgang A1 - Hillemeier, B. A1 - Hüttl, R. T1 - Entwicklung eines faseroptischen pH-Sensors zur Früherkennung korrosionsgefährdender Zustände in Stahlbeton T2 - Tagung Bauchemie der GDCh-Fachgruppe Bauchemie CY - Berlin, Deutschland DA - 2005-09-29 KW - Korrosion KW - Stahlbeton KW - Monitoring KW - pH KW - Faseroptischer Sensor KW - Langzeitstabilität KW - Indikator KW - Immobilisierung PY - 2005 SP - 242 EP - 248 PB - GDCh CY - Frankfurt am Main AN - OPUS4-11559 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schram, Ch. A1 - Krebber, Katerina A1 - Habel, Wolfgang T1 - Glasfasersensoren für Rotorblätter KW - Glasfasern KW - Faser-Bragg-Gitter KW - Windenergieanlagen KW - Rotorblätter PY - 2005 SN - 1436-8773 SN - 0946-7556 VL - 15 IS - 7 SP - 32 EP - 34 PB - SunMedia CY - Hannover AN - OPUS4-11213 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre optic sensors activites in the Federal Institute for Materials Research and Testing (BAM) in Germany to monitor geotechnical structures. T2 - Invited presentation at the 1. Int. Workshop on opto-electronic sensor-based monitoring in Geo-Engineering (1. OSMG) at the Nanjing University of Science and Technolgy. CY - Nanjing, China DA - 2005-11-23 PY - 2005 AN - OPUS4-11617 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Möglichkeiten faseroptischer Sensortechnik für den Einsatz zur Schadensfrüherkennung an Wasserbauwerken. T2 - Workshop "Deichmonitoring: Schäden, Schadenserkennung und Sanierung" der Univ Hannover. CY - Hanover, Germany DA - 2005-02-23 PY - 2005 AN - OPUS4-11618 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Experimentelle Untersuchungen des Verformungsverhaltens elastomerer Bauteile mittels eingebetteter Fasersensoren. T2 - GESA-Symposium 2005 CY - Saarbrücken, Germany DA - 2005-09-21 PY - 2005 AN - OPUS4-11624 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre Bragg Grating Sensors to Monitor the Rotor Blades of wind Turbines Griteria and Method to Put them to the Best Possible Use. T2 - GESA Symposium 2005 CY - Saarbrücken, Germany DA - 2005-09-21 PY - 2005 AN - OPUS4-11626 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Ein komplexes Monitoringsystem der BAM überwacht den gläsernen Bahnhof in Berlin. T2 - 44. SEI-Tagung im Hahn-Meitner-Instiut Berlin CY - Berlin, Germany DA - 2005-09-26 PY - 2005 AN - OPUS4-11627 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Neue Applikationsbeispiele für faseroptische Sensoren in der Materialforschung Bauwerksüberwachung. T2 - 17th International Scientific Conference Mittweida. luK-Technolgien, Tagungsgruppe C. Faseroptische Sensoren CY - Mittweida, Germany DA - 2005-11-03 PY - 2005 AN - OPUS4-11632 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre Optic Sensors - Research activities and application examples of the Federal Institute for Materials Reserarch and Testing (BAM) in Germany. T2 - Invited presentation at the Polish Academy of Science, Institute of Fundamental Technolgical Research CY - Warsaw, Poland DA - 2005-09-02 PY - 2005 AN - OPUS4-11611 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre Optic Sensors - Research activites and application examples of the Federal Instiute for Materials Research and Testing (BAM) in Germany T2 - Invited presentation at the Hong Kong University of Science and Technology. CY - Hong Kong, China DA - 2005-11-11 PY - 2005 AN - OPUS4-11612 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Selected Examples of Use of Fibre Optic Sensors in Civil Engineering and Geotechnics. T2 - Invited presentation at the Int. Symposium on Innovation & Sustainability of Structures in Civil Engineering including Seismic Engineering (ISISS'2005). College of Civil Engineering at the Southeast University CY - Nanjing, China DA - 2005-11-20 PY - 2005 AN - OPUS4-11614 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fasersensorik für die Zustandsüberwachung von Werkstoffen und Bauteilen - Möglichkeiten und Kriterien für einen zuverlässigen Einsatz. T2 - 1. Dresdner Aiport-Seminar. CY - Dresden, Germany DA - 2005-09-29 PY - 2005 AN - OPUS4-11730 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Möglichkeiten faseroptischer Sensoren in smart textiles ("Intelligente Textilien"). T2 - Eingeladener Vortrag im Thüringischen Textilforschungsinstitu (TITV) CY - Greiz, Germany DA - 2005-09-30 PY - 2005 AN - OPUS4-11731 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang T1 - Neue Möglichkeiten der Zustandsüberwachung durch strukturintegrierte faseroptische Sensoren PY - 2006 SN - 3-18-401656-0 VL - 18 SP - 51 EP - 65 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-13688 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Habel, Wolfgang ED - Inaudi, D. T1 - Guidelines and Standards for Fiber Optic Sensors - Quo vadis? T2 - Smart structures and materials 2006: Smart sensor monitoring systems and applications CY - San Diego, CA, USA DA - 2006-02-26 KW - Fiber optic sensor KW - Guideline KW - Validation KW - Test method KW - Characterization KW - Structural monitoring KW - Materials investigation PY - 2006 SN - 0-8194-6220-9 SN - 1605-7422 N1 - Serientitel: SPIE proceedings series – Series title: SPIE proceedings series IS - 6167 SP - 61671A-1-61671A-9 PB - SPIE CY - Bellingham AN - OPUS4-14113 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thiele, E. A1 - Erth, H. A1 - Arnold, R. A1 - Habel, Wolfgang A1 - Krebber, Katerina A1 - Döring, H. A1 - Glötzl, R. T1 - Applikation optischer Fasern in Textilflächen T2 - 45. Internationale Chemiefasertagung CY - Dornbirn, Österreich DA - 2006-09-21 KW - Optische Fasern KW - Faseroptische Sensoren KW - Geotextilien PY - 2006 SP - 1 EP - 5(?) CY - Dornbirn AN - OPUS4-14457 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Faseroptische Messverfahren zur Überwachung von Stahl- und Betonbauten T2 - 4. Stahl-Wasserbau-Seminar CY - Mannheim, Germany DA - 2007-02-06 PY - 2007 AN - OPUS4-14572 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Standards and guidelines - could they enhance user confidence in fibre sensor technology? T2 - 3. European Workshop on Optical Fibre Sensors CY - Naples, Italy DA - 2007-07-04 PY - 2007 AN - OPUS4-14595 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Ausgewählte Anwendungsbeispiele faseroptischer Sensoren im Ingenieurbau und in der Geotechnik T2 - 15th International Course on Engineering Surveying, Ingenieurvermessung 2007 CY - Graz, Austria DA - 2007-04-17 PY - 2007 AN - OPUS4-14596 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Dantan, Nathalie A1 - Hofmann, Detlef A1 - Krebber, Katerina A1 - Schallert, Matthias T1 - Ausgewählte Anwendungsbeispiele faseroptischer Sensoren im Ingenieurbau und in der Geotechnik T2 - Ingenieurvermessung 07 CY - Graz, Österreich DA - 2007-04-17 PY - 2007 SP - 281 EP - 294 PB - Wichmann CY - Graz AN - OPUS4-14760 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Recent examples of applied fibre optic sensors in geotechnical areas to evaluate and monitor structural inegrity T2 - The 2nd International Workshop on Opto-electronic Sensor-based Monitoring in Geo-engineering CY - Nanjing, China DA - 2007-10-18 PY - 2007 AN - OPUS4-15845 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - New projects and fibre optic sensing and application related aspects T2 - COST 299 Management-Committee CY - Les Houches, France DA - 2007-01-31 PY - 2007 AN - OPUS4-16350 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Neue Anwendungsbeispiele faseroptischer Sensoren im Strukturmonitoring T2 - DGZfP Fachausschuss SHM CY - Dresden, Germany DA - 2007-11-06 PY - 2007 AN - OPUS4-16351 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Ausgewählte Anwendungsbeispiele faseroptischer Sensoren aus der Bauwerks- und Strukturüberwachung T2 - Innovationsforum "Intelligenter Einsatz faseroptischer Sensorsysteme" CY - Erfurt, Germany DA - 2007-10-25 PY - 2007 AN - OPUS4-16352 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Faseroptische Sensortechnologien für umfassendes Bauwerksmonitoring T2 - GESA Expertenforum 2007 "Experimentelle Strukturanalyse für Zustandsüberwachung" CY - Nuremberg, Germany DA - 2007-05-22 PY - 2007 AN - OPUS4-16353 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Activities at BAM in fibre optic sensors technology of evaluation of structur's behavior T2 - University of Monitobe , Faculty of Engineering CY - Winnipeg, Canada DA - 2007-11-21 PY - 2007 AN - OPUS4-16354 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Revue of research activities at BAM in fibre optic sensor technology T2 - City University of London, School of Engineering and mathematical Science CY - London, England DA - 2007-11-27 PY - 2007 AN - OPUS4-16355 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Krebber, Katerina A1 - Dantan, Nathalie A1 - Schallert, Matthias A1 - Hofmann, Detlef ED - Bin Shi, T1 - Recent examples of applied fibre optic sensors in geotechnical areas to evaluate and monitor structural integrity T2 - OSMG-2007 - 2nd International Workshop on Opto-electronic Sensor-based Monitoring in Geo-engineering CY - Nanjing, China DA - 2007-10-18 KW - Fibre optic sensors KW - Monitoring KW - Geotechnique KW - Pile load test KW - pH sensor KW - Geotextile monitoring KW - Ground anchor monitoring KW - Distributed sensor PY - 2007 SP - 27 EP - 35 CY - Nanjing, China AN - OPUS4-16431 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Langzeitmonitoring der Ederstaumauer N2 - Die Fixierung der Stahlanker im Felsfundament zur Stabilisierung der Schwergewichtsmauer werden mit integrierten faseroptischen Dehnungssensoren überwacht. In die Glasfaser sind Reflektoren eingebaut; zwei Reflektoren bilden jeweils eine Messstrecke, die Auskunft über die Fixierung geben. Am Ankerkopf wird der Zustand der Messstrecken abgefragt. T2 - Expertenforum Strukturmonitoring auf der Sensor+Test-Messe CY - Nuremberg, Germany DA - 08.06.2011 PY - 2011 AN - OPUS4-24047 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Langzeitmonitoring der Ederstaumauer T2 - Expertenforum Strukturmonitoring auf der Sensor+Test-Messe CY - Nuremberg, Germany DA - 2011-06-08 PY - 2011 AN - OPUS4-24048 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Facility for calibration and validation of surface-attached fiber optic sensors to perform reliable strain measurements (invited lecture) T2 - International SAE Spring Meeting CY - Kissimmee, FL, USA DA - 2011-04-11 PY - 2011 AN - OPUS4-24050 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Monitoring of corrosion protection in reinforced concrete structures using an integrated pH optode T2 - 5th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII-5) CY - Cancún, Mexico DA - 2011-12-11 PY - 2011 AN - OPUS4-24051 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Current European Research and Development Activities in Standardization of Fiber Optic Strain Sensors (invited lecture) T2 - International SAE Spring Meeting, Workgroup AS-3C CY - Kissimmee, FL, USA DA - 2011-04-11 PY - 2011 AN - OPUS4-24052 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Standardisierung und Validierung faseroptischer Dehnungssensoren für zuverlässige Messeaussagen (invited lecture) T2 - Versammlung des OpTecBB-Schwerpunkts "PhoKoS" CY - Berlin, Germany DA - 2011-04-20 PY - 2011 AN - OPUS4-24053 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Monitoring von Hochspannungskabel-Muffen und -Endverschlüssen N2 - - Zunehmender Energiebedarf erfordert höhere Übertragungskapazitäten - Dezentrale ökologische Energiegewinnung, z. B. Offshore, erfordert Übertragung großer Energiemengen in die Ballungszentren (Nord-Süd-Trassen) - Hohe Auslastung der Netze erfordert Beherrschbarkeit der im Fehlerfall auftretenden Risiken für Menschen, Umwelt und energietechnische Anlagen - Etwa 90 % der Anlagenausfälle sind verursacht durch Teilentladungen (TE) in Endverschlüssen und Muffen mit modernen polymeren Isoliersystemen - Etablierte elektrische Verfahren erlauben nur externe Schadensdetektion. T2 - Expertenforum Strukturmonitoring auf der Sensor+Test-Messe CY - Nuremberg, Germany DA - 08.06.2011 PY - 2011 AN - OPUS4-24054 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Monitoring von Hochspannungs-Muffen und -Endverschlüssen T2 - Expertenforum Strukturmonitoring auf der Sensor+Test-Messe CY - Nuremberg, Germany DA - 2011-06-08 PY - 2011 AN - OPUS4-24055 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Habel, Wolfgang A1 - Brunner, F.K. T1 - Faseroptische Sensoren für den Einsatz im Monitoring: Ein Überblick N2 - Die herausragenden Eigenschaften faseroptischer Sensoren beim Monitoring geotechnischer Strukturen werden diskutiert und ihre Vor- und Nachteile zusammengefasst. Es werden die Grundlagen der wichtigsten faseroptischen Sensoren (Rückstreu-, Faser-Bragg-Gitter-, Fabry-Perot-Sensoren, Mach-Zehnder-Interferometer sowie Sensoren auf Basis der Niedrig-Kohärenz-Interferometrie) aufbereitet. KW - Monitoring KW - Faseroptische Sensoren KW - Faser-Bragg-Gitter KW - Interferometrische Sensoren KW - Fiber optic sensors KW - Fiber Bragg grating KW - Interferometric sensors PY - 2011 SN - 0002-5968 VL - 6 SP - 204 EP - 211 PB - Wichmann CY - Heidelberg AN - OPUS4-23911 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Buchholz, Uwe A1 - Heidmann, G. A1 - Höhse, Marek A1 - Lothongkam, Chaiyaporn T1 - Fibre-optic sensors for early damage detection in plastic insulations of high-voltage facilities N2 - Fibre-optic sensors (FOS) have great potential as online damage detectors when integrated in HV accessories. Among their well-known use as temperature and strain sensors, there are some more opportunities of use, e. g. they can intimately be embedded in polymeric insulations of HV cable terminations and joints to detect and monitor partial discharges right at the location of their origin. Two FOS types for early PD detection were investigated: an embeddable fibre-optic acoustic sensor to measure acoustlc waves in polymeric insulations generated by PDs, and a fluorescent optical fibre to detect first optical effects during ionization processes in the insulation material. The paper descrlbes these methods, related monitoring Problems and shows first test results. T2 - ISH 2011 - 17th International symposium on high voltage engineering CY - Hannover, Germany DA - 22.08.2011 KW - Fibre optic sensors KW - Monitoring KW - Materials behavior KW - Early shrinkage of cement paste PY - 2011 SN - 978-3-8007-3364-4 SP - 2070 EP - 2075 PB - VDE Verlag GmbH AN - OPUS4-24270 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Schukar, Vivien ED - Ecke, W. ED - Peters, K.J. ED - Matikas, T.E. T1 - FOS standards and testing methods to validate fibre optic strain measurements N2 - Fiber optic sensors are increasingly used because of their outstanding performance or if special requirements avoid the application of conventional electrical sensors. The scientific background for optical fiber sensors is well developed; however, the characteristic of sensors applied in rather harsh environment are almost always different from characteristics determined in laboratory or before its installation. In order to achieve long-term stable function and reliable measurement data after application and under harsh environmental conditions, guidelines for characterization and specification of sensor components are needed as well as methodologies for testing the sensor performance must be developed. Performance tests carried out revealed that there are still some restrictions with respect to long-term reliable use: first, some sensor products available on the market are not very often appropriately characterized, described and validated; second, application procedures are not always defined due to a lack of understanding the micromechanical issues in the interface zone between sensor and measuring object. Application procedures and profound knowledge of materials behaviour are necessary to get results from the sensor that can be reliably used. The paper describes first guidelines to prove the quality of fiber optic strain sensors, a testing facility developed for unbiased tests and certification of surface-applied sensors as well as result from comparison of commercially available strain sensors. T2 - SPIE-Conference 'Smart sensor phenomena, technology, networks, and systems 2011' CY - San Diego, CA, USA DA - 06.03.2011 KW - Fiber optics KW - Strain sensor KW - Reliability KW - Durability KW - Creep KW - Application KW - Adhesive KW - Standards KW - Guideline KW - Testing PY - 2011 SN - 978-0-8194-8547-2 DO - https://doi.org/10.1117/12.881238 VL - 7982 SP - 79820O-1 EP - 79820O-12 AN - OPUS4-24271 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Habel, Wolfgang A1 - Krebber, Katerina T1 - Fiber-optic sensor applications in civil and geotechnical engineering N2 - Different types of fiber-optic sensors based on glass or polymeric fibers are used to evaluate material behavior or to monitor the integrity and long-term stability of load-bearing structure components. Fiber-optic sensors have been established as a new and innovative measurement technology in very different fields, such as material science, civil engineering, light-weight structures, geotechnical areas as well as chemical and high-voltage substations. Very often, mechanical quantities such as deformation, strain or vibration are requested. However, measurement of chemical quantities in materials and structure components, such as pH value in steel reinforced concrete members also provides information about the integrity of concrete structures. A special fiber-optic chemical sensor for monitoring the alkaline state (pH value) of the cementitious matrix in steel-reinforced concrete structures with the purpose of early detection of corrosion-initiating factors is described. The paper presents the use of several fiber-optic sensor technologies in engineering. One example concerns the use of highly resolving concrete-embeddable fiber Fabry-Perot acoustic emission (AE) sensors for the assessment of the bearing behaviour of large concrete piles in existing foundations or during and after its installation. Another example concerns fiber Bragg grating (FBG) sensors attached to anchor steels (micro piles) to measure the strain distribution in loaded soil anchors. Polymer optical fibers (POF) can be — because of their high elasticity and high ultimate strain – well integrated into textiles to monitor their Deformation behaviour. Such 'intelligent' textiles are capable of monitoring displacement of soil or slopes, critical mechanical deformation in geotechnical structures (dikes, dams, and embankments) as well as in masonry structures during and after earthquakes. KW - Fiber-optic sensor KW - Monitoring KW - Earthquake damage assessment KW - Steel-reinforced structures KW - pH sensor KW - Geotextiles KW - Distributed sensor PY - 2011 DO - https://doi.org/10.1007/s13320-011-0011-x SN - 1674-9251 VL - 1 IS - 3 SP - 268 EP - 280 PB - Springer CY - Heidelberg ; Secaucus, NJ AN - OPUS4-24256 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Schukar, Vivien A1 - Kusche, Nadine T1 - Calibration facility for quality certification of surface-attached fiber optic and electrical strain sensors N2 - Strain measurement in structures witli the purpose of long-term structurai health inonitoring must provide reliable inforination about the structure’s behavior over the whole period of use. The user must be sure that installed sensors are validated and work to the utmost satisfactiou. For this purpose, sensor Systems are tested using special facilities. Bccause it is not easy to characterize the strain transfer quality from the host structure into surface-applied strain sensors, a unique testing facility has been developed. Originally developed for fiber Bragg grating based sensors, the KALFOS facility (= calibration of fiber optic sensors) can also be used for electrical strain sensors. Calibration ineasurements are referenced by unbinsed Digital Image Correlation (D1C) and Electronic Speckle Pattern Interferometer (ESPI) methods. The strain transfer behavior can experimentally be analyzed and investigated under combined thermal and mechanical loading conditions and allows revealing wealuiesses in couimonly used attachment methodologies. The deformation of all members (particularly the coating/substrate - adhesive combination) in the sensing area is physically independently gained and recorded. Results achievcd allow precise description of the strain transfer function, Validation of the longterm strain sensor characteristics, matching of specific measurement requirements with environmental conditions, and, moreover, the verification of Standards for use of strain sensors. T2 - IEEE Sensors 2011 conference CY - Limerick, Ireland DA - 28.10.2011 KW - Fibre optic sensors KW - Structural health monitoring KW - Validation KW - Strain sensor KW - Surface application reliability PY - 2011 SN - 978-1-4244-9288-6 DO - https://doi.org/10.1109/ICSENS.2011.6127253 SP - 1337 EP - 1340 AN - OPUS4-24655 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Schukar, Vivien A1 - Tkachenko, Viktoriya T1 - How do application-related issues influence the reliability of fiber optic strain measurements? N2 - Fibre optic strain sensors are increasingly used and sensor systems are provided with specifications. Even if the performance is well specified, the strain characteristics of the sensor, strain transfer factor, mechanical stability under thermal influences, the performance of applied strain sensors can seriously differ from virgin sensor's the performance. The contribution will focus on issues that can deteriorate the sensor function or reduce the reliability of measurement results. Aspects are considered how to come to reliable strain measurements and how to validate strain measurements of applied sensors. Related to this topic, European activities like the recently started European COST TD1001 action, called (OfSeSa) will be presented. T2 - IEEE Sensors 2011 conference CY - Limerick, Ireland DA - 28.11.2011 KW - Fibre optic sensors KW - Structural health monitoring KW - Validation KW - Strain sensor KW - Surface application reliability PY - 2011 SN - 978-1-4244-9288-6 SP - 947 EP - 950 AN - OPUS4-24656 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kusche, Nadine A1 - Schukar, Vivien A1 - Schilder, Constanze A1 - Köppe, Enrico A1 - Habel, Wolfgang ED - Chang, F.-K. T1 - Development and qualification of FBG-based strain patches and rosettes N2 - A fibre Bragg grating (FBG) strain patch specially adapted for long-term and high-strain applications was developed and characterised. Additionally, in the case of unknown main stress axis, two fibre optic strain rosettes were developed. The design concept for the patch and the rosettes is based on a glass fibre reinforced plastic (gfrp) carrier material. The patches were characterised due to their strain gauge factor and fatigue behaviour. As a result, FBG strain patches with linear strain behaviour and excellent fatigue resistance were developed and can be used as part of a monitoring system for aerospace structures or wind turbine power plants. The rosettes were designed to be small in geometrical size and their strain transfer behaviour was characterised. T2 - 8th International workshop on structural health monitoring 2011 CY - Stanford, CA, USA DA - 13.09.2011 KW - Fibre Bragg grating KW - Patch KW - Rosette KW - Strain gauge factor KW - Fatigue behaviour KW - Validation PY - 2011 SN - 978-1-60595-053-2 VL - 2 SP - 1457 EP - 1465 PB - DEStech Publications, Inc. AN - OPUS4-24512 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Kusche, Nadine A1 - Münzenberger, Sven A1 - Schukar, Vivien T1 - KALFOS - a validation facility for strain transfer characterization of surface-applied strain sensors N2 - Strain sensors embedded in or attached to structural components have to measure the real deformation of the structure over the whole period of use. The user must know how reliably installed sensors provide strain measurement results. For this purpose, test facilities or coupon tests are used. In order to characterize the strain transfer quality from the host structure into surface-applied strain sensors, a unique testing facility has been developed. This facility can be used both for fiber optic and resistance strain sensors. Originally developed for fiber Bragg grating based sensors, the KALFOS facility (=calibration of fiber optic sensors) uses Digital Image Correlation (DIC) and Electronic Speckle Pattern Interferometer (ESPI) as unbiased referencing methods. It is possible to determine experimentally the strain transfer mechanism under combined thermal and mechanical loading conditions. This experimental characterization method will reveal weaknesses in commonly used strain sensors, and the investigation of the material systems used for fiber optic and other strain sensors (particularly the coating/substrate - adhesive combination). The KALFOS facility allows matching of specific measurement requirements with environmental conditions. T2 - SAE 2011 AeroTech Congress & Exhibition CY - Toulouse, France DA - 18.10.2011 KW - Fiber optic sensors KW - Structural health monitoring KW - Validation KW - Strain sensor KW - Surface application PY - 2011 DO - https://doi.org/10.4271/2011-01-2606 IS - Paper 2011-01-2606 SP - 1 EP - 7 AN - OPUS4-24643 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre-optic sensors for early damage detection in plastic insulations of high-voltage facilities T2 - ISH 2011, 17th International Symposium on High Voltage Engineering CY - Hanover, Germany DA - 2011-08-22 PY - 2011 AN - OPUS4-24586 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fiber Optic Strain Sensor Standardization - International and European Activities T2 - SAE AeroTech Toulouse 2011 CY - Toulouse, France DA - 2011-10-17 PY - 2011 AN - OPUS4-24587 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - KALFOS - A Validation Facility for Strain Transfer Characterization of Surface-Applied Strain Sensors T2 - SAE AeroTech Toulouse 2011 CY - Toulouse, France DA - 2011-10-17 PY - 2011 AN - OPUS4-24588 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - How do application-related issues influence the reliability of fibre optic strain measurements? T2 - IEEE Sensors Conference CY - Limerick, Ireland DA - 2011-10-28 PY - 2011 AN - OPUS4-24578 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Calibration facility for quality certification of surface-attached fiber optic and electrical strain sensors (invited lecture) T2 - IEEE Sensors Conference CY - Limerick, Ireland DA - 2011-10-28 PY - 2011 AN - OPUS4-24580 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krebber, Katerina A1 - Habel, Wolfgang T1 - Fibre-optic sensors embedded in geotechnical textiles and concrete piles for structural health monitoring N2 - Fibre-optic sensors are more and more used in geotechnical and civil engineering. There are a big number of applications with the purpose of improvement or proof of the structural integrity. This paper, presents two examples where different fibre sensor types.are exploited for safety-relevant task in geotechnique. Technical textiles with embedded distributed fibre-optic sensors based on Brillouin Scattering in silica optical fibres and OTDR (optical time-domain reflectometry) in polymer optical fibres are presented. Such “smart” technical textiles can be used for reinforcement of geotechnical structures and masonry walls, and the embedded fibre-optic sensors can provide information about the condition of the structures as well as detect the presence of any damage and destructions in real time. Highly sensitive fibre-optic geophones based on Fabry-Perot sensors embedded in large concrete pile can be used for precise measurement of Deformation and wave distribution during static and dynamic pile test. Such sensors make the evaluation of the pile’s integrity and load-bearing capacity easier. KW - Faseroptischer Sensor KW - Verteilter Sensor KW - Brillouin-Sensor KW - Polymeroptischer Sensor KW - POF OTDR KW - Technisches Textil KW - Geotextil KW - Dehnungssensor KW - Geophon KW - Pfahltest KW - Akustische Welle KW - Fabry-Perot KW - Fibre-optic sensor KW - Distributed sensor KW - Polymer optical fibres (POF) KW - POF sensor KW - Strain sensor KW - Technical textiles KW - Geotextiles KW - Geophone KW - Fabry-Perot sensor KW - Pile test KW - Impact KW - Acoustic wave PY - 2011 SN - 0002-5968 VL - 7 SP - 252 EP - 263 PB - Wichmann CY - Heidelberg AN - OPUS4-24816 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schilder, Constanze A1 - Hofmann, Detlef A1 - Kohlhoff, Harald A1 - Habel, Wolfgang ED - Ramos, G. A. T1 - Structure-integrated fiber-optic strain wave sensor for concrete pile testing and monitoring N2 - Reinforced concrete piles are used in case of structures that are constructed on soft ground to transfer the loads into deeper strata with sufficient bearing capacity. In order to determine the pile’s behavior and possible damage, static and dynamic pile tests are carried out. Dynamic measurements taken from the pile head can show the bearing behavior and structural integrity by using the theory of wave propagation. In order to receive more precise information about the pile features, now, a string of sensors is embedded at different levels of the pile. A fiber optic strain wave sensor, based on the extrinsic Fabry-Perot interferometer (EFPI), has already been developed and tested in full-scale field tests by Schallert (2010). It was possible to detect the introduced deformation caused by the static load and the dilatational wave during dynamic loading. Although the full-scale tests were successful, the engineering design of the sensor body left room - from the economical point of view - to be optimized. After laboratory tests with the optimized sensor, a cast-in-situ bored pile has been built at the BAM Test Site Technical Safety in Horstwalde, South of Berlin. Additionally to the EFPI sensors, fiber Bragg grating (FBG) sensors, temperature sensors and resistance strain gauge (RSG) sensors are embedded in order to compare the signals with each other. In this paper, the modified sensor and the Setup of the cast-in-situ bored pile along with results of dynamic tests are shown. T2 - SHMII-5 - 5th International conference on structural health monitoring of intelligent infrastructure CY - Cancún, Mexico DA - 11.12.2011 KW - Fibre optic sensors KW - Monitoring KW - Concrete pile KW - Foundation KW - Integrity testing PY - 2011 IS - Topic_04.Cat_4.2-abs002 SP - 1 EP - 8 PB - National Autonomous University of Mexico CY - Mexico City AN - OPUS4-25142 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - FOS standards and methodologies to validate strain measurements with FBG sensors (invited lecture) T2 - International SPIE Conference on Smart Structures and Materials CY - San Diego, CA, USA DA - 2011-03-08 PY - 2011 AN - OPUS4-25264 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Validation of strain sensors to achieve reliable measurement results (invited lecture) T2 - 5th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII-5) CY - Cancún, Mexico DA - 2011-12-11 PY - 2011 AN - OPUS4-25265 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Schukar, Vivien ED - Ramos, G. A. T1 - Validation of strain sensors to achieve reliable measurement results N2 - Fiber optic strain sensors are increasingly used and sensor Systems are provided with specifications. Even if the performance is well specified, the strain characteristics of the sensor, strain transfer factor, mechanical stability under thermal influences, the performance of applied strain sensors can seriously differ from virgin sensor’s the performance. Therefore the contribution considers validation issues to come to reliable strain measurements and how to validate strain measurements of applied sensors. A new validation facility will be presented. T2 - SHMII-5 - 5th International conference on structural health monitoring of intelligent infrastructure CY - Cancún, Mexico DA - 11.12.2011 PY - 2011 IS - Session 20, Topic 2.3 SP - 1 EP - 13 PB - National Autonomous University of Mexico CY - Mexico City AN - OPUS4-25309 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Röben, R. A1 - Hüttl, R. A1 - Kuchejda, M. ED - Ramos, G. A. T1 - Monitoring of corrosion protection in reinforced concrete structures using an integrated pH optode N2 - Corrosion in steel-reinforced concrete structures is a critical issue. Corrosion appears if the pH value of the concrete matrix decreases due to deterioration of the Calcium hydroxide layer on the Steel surface. The safest Information about potential danger of Steel corrosion is the knowledge of the pH value of concrete. The paper presents a Tiber optic pH sensor for long-term monitoring of the pH value of reinforced concrete structures at risk from corrosion. The sensor probe is small (about 8 mm in diameter), can be embedded into the concrete matrix and observe changes in pH over years. Several sensor probes can be staggered to detect the progression of pH decrease. The pH values can be resolved with 0.1 to 0.2 pH value in the ränge between 12.0 and 9.5. The structure of the pH measurement System, longterm test results and the design to achieve stable probes will be explained. Experienee from test applications of pH sensors embedded in grouted anchors and in concrete components for a cooling tower will be presented. T2 - SHMII-5 - 5th International conference on structural health monitoring of intelligent infrastructure CY - Cancún, Mexico DA - 11.12.2011 PY - 2011 IS - Session 15, Topic 4.5 SP - 2 EP - 8 PB - National Autonomous University of Mexico CY - Mexico City AN - OPUS4-25311 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Advances in Developing Standards for Fibre-optic Sensors T2 - 6th European Workshop on Structural Health Monitoring CY - Dresden, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-26461 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Sensor-Integration in Real Structures (invited lecture) T2 - COST TD1001 - School CY - Funchal, Portugal DA - 2012-09-04 PY - 2012 AN - OPUS4-27088 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - R&D Activities in Structural Health Monitoring by using Fibre-optic Sensors (invited lecture) T2 - Forschungskooperation im Rahmen der COST TD1001 - Action CY - Istanbul, Turkey DA - 2012-10-04 PY - 2012 AN - OPUS4-27089 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Selected R&D Projects in Structural Health Monitoring on the Basis of Optical Fibres (invited lecture) T2 - Forschungskooperation im Rahmen der COST TD1001 - Action CY - Istanbul, Turkey DA - 2012-10-04 PY - 2012 AN - OPUS4-27091 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Application of Fibre-Optic Sensors for Health Monitoring Purposes in Geo-Engineering (invited lecture) T2 - International Symposium on Optics in Geo-Engineering OSMG-4 2012 CY - Suzhou, China DA - 2012-10-11 PY - 2012 AN - OPUS4-27092 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre-Optic Strain Sensors are Making the Leap from Lab to Industrial Use-Reliability and Validation as Precondition for Standards (invited lecture) T2 - International Conference on Optical Fibre Sensors OFS-22 2012 CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-27094 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -