<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>35699</id>
    <completedYear/>
    <publishedYear>2015</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Verteilte faseroptische Sensorik für die akustische Detektion von Teilentladungen</title>
    <abstract language="deu">Eingeladener Seminarvortrag an der Technischen Universität Berlin über neuste wissenschaftliche Ergebnisse der Detektion von Teilentladungen an Kabelmuffen mittels verteilter akustischer Sensorik.</abstract>
    <enrichment key="eventName">Seminarvortrag bei der Veranstaltung "Hochspannungstechnik/ Energieübertragung"</enrichment>
    <enrichment key="eventPlace">Berlin, Deutschland</enrichment>
    <enrichment key="eventStart">11.11.2015</enrichment>
    <enrichment key="eventEnd">11.11.2015</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>8.6</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Fasersensorik</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Verteilte akustische Sensorik</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Teilentladungs Überwachung</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>38414</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Quasi-distributed acoustic sensing (DAS) for online monitoring in high voltage environment</title>
    <abstract language="deu">Es werden aktuelle Ergebnisse der quasi-verteilten Faseroptische Sensorik der BAM bzgl. der Diagnostik von Hochspannungskomponenten vorgestellt. Hierbei werden Ergebnisse der akustischen Teilentladungs-Überwachung von Kabelmuffen präsentiert.&#13;
Ferner werden Resultate zur Verbesserung der Fasersensoreigenschaften einer Faser durch induzierte Streuer dargestellt.</abstract>
    <enrichment key="eventName">Energie und Photonik</enrichment>
    <enrichment key="eventPlace">Goslar, Germany</enrichment>
    <enrichment key="eventStart">18.10.2016</enrichment>
    <enrichment key="eventEnd">18.10.2016</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed acoustic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fibre-optic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Partial discharge</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>38415</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Accoustic monitoring of high-voltage components using optical fibre</title>
    <abstract language="eng">Die faseroptische Detektion akustischer Signale eines Transformators bietet die Möglichkeit, eine Echtzeit Zustandsüberwachung durchzuführen. Hierfür wurde ein Konzept entwickelt und in realitätsnahen Versuchen demonstriert.</abstract>
    <enrichment key="eventName">Seminar Hochspannungstechnik und Energieversorgung</enrichment>
    <enrichment key="eventPlace">Techische Universität Berlin, Germany</enrichment>
    <enrichment key="eventStart">16.11.2016</enrichment>
    <enrichment key="eventEnd">16.11.2016</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed acoustic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Transformer Monitoring</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>45889</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Characterising the material degradation of inner pressure-loaded GFRP-tube specimens using distributed strain sensing</title>
    <abstract language="eng">Glass-fibre-reinforced plastics (GFRP) are commonly used for the construction of pressure vessels and tanks for example in automotive and aerospace industries. Especially for pressure vessels used for the storage of natural gas or hydrogen with operation pressures up to 700 bar, an early material fatigue detection is of great interest. Measuring the distributed strain profile of GFRP structures helps to understand and detect material fatigue. In this article, we demonstrate the great potential of swept wavelength interferometry (SWI) based distributed strain sensing for the monitoring of pressure vessels made from GFRP. A resin transfer molding (RTM) process was used to manufacture GFRP-tube specimens. Commercial optical fibres with polyimid coating were glued to the surface externally in circumferential and axial direction. A cyclic load of up to 150 bar was applied to the samples using a servo-hydraulic test bench. Comparing the loaded and unloaded test conditions, we determined up to 2 % elongation in circumferential direction. We demonstrate reliable distributed strain measurements with sub-centimetre spatial resolution. By monitoring these high-resolution strain profiles, we were able to detect local material degradation that manifested itself as localized strain changes. Crucially, the material Degradation could be detected already after 75 % of dat the fatigue life before a crack appeared that led to leakage.</abstract>
    <enrichment key="eventName">Sensoren und Messsysteme - 19. ITG/GMA-Fachtagung</enrichment>
    <enrichment key="eventPlace">Nürnberg, Germany</enrichment>
    <enrichment key="eventStart">26.06.2018</enrichment>
    <enrichment key="eventEnd">27.06.2018</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed fibre optic sensors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Optical backscatter reflectometry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Swept wavelength interferometry (SWI)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural health monitoring (SHM)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Composite structures</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Optical fibre</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>40637</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Akustische Überwachung von Transformatoren mit Glasfasern?!</title>
    <abstract language="deu">Vorstellung aktueller Ergebnisse der Quasi-verteilten faseroptische Sensorik für die Echtzeit-Diagnostik von Hochspannungstransformatoren.</abstract>
    <enrichment key="eventName">Seminar Hochspannungstechnik und Energieversorgung</enrichment>
    <enrichment key="eventPlace">Technische Universität Berlin, Germany</enrichment>
    <enrichment key="eventStart">30.05.2017</enrichment>
    <enrichment key="eventEnd">30.05.2017</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>C-OTDR</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed acoustic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quasi-distributed vibration sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural health monitoring</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>40640</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Advanced distributed acoustic monitoring</title>
    <abstract language="eng">New progress of developments of distributed acoustic monitoring. Review of previous results and lastest improvements.</abstract>
    <enrichment key="eventName">Seminar Angewandte Photonik</enrichment>
    <enrichment key="eventPlace">Goslar, Germany</enrichment>
    <enrichment key="eventStart">15.06.2017</enrichment>
    <enrichment key="eventEnd">15.06.2017</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed acoustic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural health monitoring</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quasi-distributed sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fibre optic sensors</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>40641</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Applications of distributed acoustic sensing</title>
    <abstract language="eng">Review of early AIP related early developments.&#13;
Overview of distributed methods at BAM. Examples of applications of distributed acoustic sensing for infrastructure monitoring.</abstract>
    <enrichment key="eventName">innoFPSEC Photonik Seminar</enrichment>
    <enrichment key="eventPlace">Potsdam, Germany</enrichment>
    <enrichment key="eventStart">07.06.2017</enrichment>
    <enrichment key="eventEnd">07.06.2017</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fibre-optic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed acoustic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural health monitoring</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>45890</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Distributed strain sensing with sub-centimetre resolution for the characterisation of structural inhomogeneities and material degradation of industrial high-pressure composite cylinders</title>
    <abstract language="eng">Fibre-reinforced plastics (FRP) especially carbon-fibre-reinforced polymer (CFRP) and glass-fibre-reinforced polymer (GFRP) are commonly used materials in high pressure vessels and storage units for automotive and aerospace purposes. Optical fibres are suitable to be integrated or directly applied to the surface of FRP components. Using optical fibres it is possible to monitor the distributed strain profiles and changes within the fatigue life of a pressure vessel to ensure the operational safety. Within artificial ageing experiments we used swept wavelength interferometry (SWI) based distributed strain sensing for the monitoring of commercial high-pressure composite cylinder. This artificial ageing was performed using test conditions of 503bar pressure load (service pressure 300 bar) and 89 °C for 100 h. The polyimide coated optical fibres were glued to the surface externally in circumferential and axial direction. Using distributed strain sensing (DSS) material expansion of over 0.5% were monitored with sub-centimetre spatial resolution. Within the circumferential direction we observed up to 10 % local fluctuation compared to the median strain caused by inhomogeneous material expansion, which could cause local material fatigue. In addition, we determined material degradation manifested itself as localized remaining material expansion and/or contraction. Results have been validated by other non-destructive methods like digital strip projection.</abstract>
    <enrichment key="eventName">9th European Workshop on Structural Health Monitoring</enrichment>
    <enrichment key="eventPlace">Manchester, UK</enrichment>
    <enrichment key="eventStart">10.07.2018</enrichment>
    <enrichment key="eventEnd">13.07.2018</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>René Eisermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed fibre optic sensors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Optical backscatter reflectometry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Swept wavelength interferometry (SWI)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural health monitoring (SHM)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Composite structures</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Optical fibre</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
</export-example>
