TY - CHAP A1 - Böse, Holger A1 - Monkman, Gareth J. A1 - Freimuth, Herbert A1 - Tunayar, A. A1 - Ermert, Helmut A1 - Khaled, W. A1 - Baumann, Michael A1 - Egersdörfer, Stefan T1 - A new ER fluid based haptic actuator system for virtual reality T2 - Proceedings of the Ninth International Conference Electrorheological Fluids and Magnetorheological Suspensions (ERMR 2004) : Beijing, China, 29 August - 3 September 2004 Y1 - 2004 SP - 889 EP - 895 PB - World Scientific CY - Singapore ER - TY - CHAP A1 - Tunayar, A. A1 - Klein, Dagmar A1 - Freimuth, Herbert A1 - Böse, Holger A1 - Baumann, Michael A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Ermert, Helmut A1 - Khaled, W. T1 - A tactile array based on electrorheological fluids T2 - Actuator 2004 : 9th International Conference on New Actuators & 3rd International Exhibition on Smart Actuators and Drive Systems, 14-16 June 2004, Bremen, Germany Y1 - 2004 SP - 601 EP - 604 PB - HVG Hanseatische Veranstaltungs-GmbH CY - Bremen ER - TY - CHAP A1 - Böse, Holger A1 - Ermert, Helmut A1 - Tunayar, A. A1 - Monkman, Gareth J. A1 - Baumann, Michael A1 - Kahled, W. A1 - Reichling, S. A1 - Bruhns, Otto T. A1 - Freimuth, Herbert A1 - Egersdörfer, Stefan T1 - A novel haptic sensor-actuator system for virtual reality T2 - Eurohaptics 2004, Munich, Germany, June 5 - 7, 2004 Proceedings of the 4th International Conference EuroHaptics 2004 ; June 5 - 7, 2004, München, Germany Y1 - 2004 SN - 3-9809614-0-0 PB - Inst. of Automatic Control Engineering CY - München ER - TY - CHAP A1 - Böse, Holger A1 - Ermert, Helmut A1 - Tunayar, A. A1 - Monkman, Gareth J. A1 - Baumann, Michael A1 - Kahled, W. A1 - Reichling, S. A1 - Bruhns, Otto T. A1 - Freimuth, Herbert A1 - Egersdörfer, Stefan T1 - A Novel Haptic Sensor-Actuator System for Applications in Virtual Reality T2 - BMBF-Tagung, Leipzig 19.10 February 2004 Y1 - 2004 ER - TY - CHAP A1 - Böse, Holger A1 - Monkman, Gareth J. A1 - Freimuth, Herbert A1 - Klein, Dagmar A1 - Ermert, Helmut A1 - Baumann, Michael A1 - Egersdörfer, Stefan A1 - Bruhns, Otto T. T1 - ER Fluid Based Haptic System for Virtual Reality T2 - Actuator 2002 : 8th International Conference on New Actuators & 2nd International Exhibition on Smart Actuators and Drive Systems ; Bremen, Germany, 10 - 12 June 2002 Y1 - 2002 SP - 351 EP - 354 ET - CD-ROM ER - TY - CHAP A1 - Khaled, W. A1 - Bruhns, Otto T. A1 - Reichling, S. A1 - Böse, Holger A1 - Baumann, Michael A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Meier, Alexander A1 - Klein, Dagmar A1 - Freimuth, Herbert A1 - Ermert, Helmut T1 - A haptic system for virtual reality applications based on ultrasound elastography and electrorheological fluids T2 - Acoustical Imaging (ACIM) N2 - Mechanical properties of biological tissue represent important diagnostic information and are of histological and pathological relevance. Malignant tumors are significantly stiffer and more immobile than surrounding healthy tissue. Hard calcifications in vessels occur due to arteriosclerosis. The problem is, that such information is usually not available or can only be obtained by manual palpation, which is subjective and limited in sensitivity. It requires intuitive assessment and does not allow quantitative documentation. Unfortunately, none of the established medical imaging equipment such as magnetic resonance imaging (MRI) or X-ray computed tomography (CT) can provide direct measure of tissue elasticity. On the one hand a suitable sensor is required for quantitative measurement of mechanical tissue properties. On the other hand there is also some need for a realistic haptic display of such tissue properties. Suitable actuator arrays with high spatial resolution acting in real time are required. A haptic sensor actuator system is presented in this paper including a sensitive sensor part and an actuator array for different applications. The mechanical consistency of an object is to be locally specified using a sensor system and represented perceptibly in a remote position on an actuator system for the user. The sensor system uses ultrasound (US) elastography, whereas the actuator array is based on electrorheological (ER) fluids. KW - Minimal Invasive Surgery KW - Manual Palpation KW - Tactile Display KW - Virtual Reality Application KW - Ultrasound ELASTOGRAPHY Y1 - 2004 SN - 978-90-481-6652-7 SN - 978-1-4020-2402-3 U6 - https://doi.org/10.1007/978-1-4020-2402-3_85 SN - 0270-5117 SN - 2215-1869 VL - 27 SP - 667 EP - 674 PB - Springer CY - Dordrecht ER - TY - CHAP A1 - Khaled, W. A1 - Bruhns, Otto T. A1 - Reichling, S. A1 - Böse, Holger A1 - Baumann, Michael A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Meier, Alexander A1 - Klein, Dagmar A1 - Freimuth, Herbert A1 - Ermert, Helmut T1 - A haptic sensor-actuator-system based on ultrasound elastography and electrorheological fluids for virtual reality applications in medicine T2 - CARS 2003 : computer assisted radiology and surgery ; proceedings of the 17th International Congress and Exhibition London, June 25 - 28, 2003 N2 - Mechanical properties of biological tissue represent important diagnostic information and are of histological relevance (hard lesions, "nodes" in organs: tumors; calcifications in vessels: arteriosclerosis). The problem is, that such information is usually obtained by digital palpation only, which is limited with respect to sensitivity. It requires intuitive assessment and does not allow quantitative documentation. A suitable sensor is required for quantitative detection of mechanical tissue properties. On the other hand, there is also some need for a realistic mechanical display of those tissue properties. Suitable actuator arrays with high spatial resolution and real-time capabilities are required operating in a haptic sensor actuator system with different applications. The sensor system uses real time ultrasonic elastography whereas the tactile actuator is based on electrorheological fluids. Due to their small size the actuator array elements have to be manufactured by micro-mechanical production methods. In order to supply the actuator elements with individual high voltages a sophisticated switching and control concept have been designed. This haptic system has the potential of inducing real time substantial forces, using a compact lightweight mechanism which can be applied to numerous areas including intraoperative navigation, telemedicine, teaching, space and telecommunication. Y1 - 2003 SP - 1354 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Khaled, W. A1 - Reichling, S. A1 - Bruhns, Otto T. A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Baumann, Michael A1 - Böse, Holger A1 - Klein, Dagmar A1 - Freimuth, Herbert A1 - Tunayar, A. A1 - Lorenz, A. A1 - Pessavento, A. A1 - Ermert, Helmut T1 - Palpation imaging using a haptic system for virtual reality applications in medicine T2 - Perspective in image-guided surgery : proceedings of the Scientific Workshop on Medical Robotics, Navigation, and Visualization : RheinAhrCampus Remagen, Germany, 11-12 March Y1 - 2004 SP - 407 EP - 414 PB - World Scientific Publ. CY - Singapore ER - TY - CHAP A1 - Khaled, W. A1 - Reichling, S. A1 - Bruhns, Otto T. A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Baumann, Michael A1 - Böse, Holger A1 - Klein, Dagmar A1 - Freimuth, Herbert A1 - Tunayar, A. A1 - Lorenz, A. A1 - Pessavento, A. A1 - Ermert, Helmut T1 - Palpation Imaging using a Haptic System for Virtual Reality Applications in Medicine T2 - Proceedings of the 12th Annual Medicine Meets Virtual Reality Conference: - Building a Better You: The Next Tools for Medical Education, Diagnosis, and Care. - Medicine Meets Virtual Reality (MMVR) - Newport Beach (California, USA). 2004 Y1 - 2004 ER - TY - CHAP A1 - Khaled, W. A1 - Bruhns, Otto T. A1 - Reichling, S. A1 - Böse, Holger A1 - Baumann, Michael A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Meier, Alexander A1 - Freimuth, Herbert A1 - Tunayar, A. A1 - Ermert, Helmut T1 - A New Haptic Sensor Actuator System for Virtual Reality Applications in Medicine T2 - Medical Image Computing and Computer-Assisted Intervention - MICCAI 2003: 6th International Conference, Montréal, Canada, November 15-18, 2003, Proceedings Y1 - 2003 SN - 978-3540204626 SP - 132 EP - 140 PB - Springer ER - TY - CHAP A1 - Khaled, W. A1 - Reichling, S. A1 - Bruhns, Otto T. A1 - Ermert, Helmut A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Baumann, Michael A1 - Böse, Holger A1 - Freimuth, Herbert A1 - Tunayar, A. T1 - Palpation imaging using a haptic sensor actuator system for medical applications T2 - Actuator 2004 : 9th International Conference on New Actuators & 3rd International Exhibition on Smart Actuators and Drive Systems, 14-16 June 2004, Bremen, Germany Y1 - 2004 SP - 379 EP - 382 PB - HVG Hanseatische Veranstaltungs-GmbH CY - Bremen ER - TY - CHAP A1 - Diermeier, Andreas A1 - Sindersberger, Dirk A1 - Monkman, Gareth J. T1 - Magneto-Active Polymer Actuator T2 - Actuator 16 : 15th International Conference on New Actuators & 9th International Exhibition on Smart Actuators and Drive Systems : conference proceedings N2 - Magneto-active Polymers (MAP) are closely related to magneto-rheological fluids in that they contain magnetic micro-particles. However, instead of being freely suspended in a carrier fluid they are physically bound within a highly elastic polymer-matrix. The application of an external magnetic field allows changes in the mechanical properties, such as elastic and shear moduli, of the composite material to be achieved. The colossal magneto-rheological effect has been shown to demonstrate changes in Young's modulus by over 1E6 %. Current research concentrates on controllable compliance and the resulting shape memory properties of MAP. This paper deals with recent advancements in this respect, including tubular magneto-active devices with potential applications in medical and other technology. KW - Formgedächtniseffekt KW - Kompositwerkstoff KW - Konzentrat KW - magnetisches Feld KW - magnetorheologische Flüssigkeit KW - Polymer KW - Schermodul Y1 - 2016 SN - 978-3-933339-26-3 SP - 286 EP - 289 PB - WFB CY - Bremen ER - TY - CHAP A1 - Sefl, Ondrej A1 - Prochazka, Radek A1 - Haller, Rainer A1 - Monkman, Gareth J. T1 - Alternative Approach to Optical Detection of Partial Discharges in Air T2 - 2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP): 12-15 Dec. 2021, Vancouver, BC, Canada N2 - This article compares the standard electrical method of partial discharge detection with a novel optical detection method based on silicon photomultipliers. A third, complementary, single-loop antenna method is added to represent the ultra-high frequency method commonly used in gas-insulated switchgear/lines. A trio of air-insulated electrode designs that simulate the fundamental fault/discharge types in gaseous insulation (protrusion – corona discharge, floating conductive particle, surface discharges) are employed. Phase-resolved partial discharge activity patterns are compiled for each electrode design. The patterns are analyzed using spatial statistics and the interpretation of the obtained data trends explained by means of an example. Ultimately, the consistency and reliability of discharge detection by the optical methods for each fault/discharge type are evaluated, and suggestions for improvement are made. KW - gas insulated switchgear KW - loop antennas KW - partial discharges KW - photomultipliers KW - reliability KW - statistical analysis KW - surface discharges Y1 - 2021 SN - 978-1-6654-1907-9 U6 - https://doi.org/10.1109/CEIDP50766.2021.9705350 SN - 2576-2397 SP - 324 EP - 327 PB - IEEE ER - TY - CHAP A1 - Sindersberger, Dirk A1 - Prem, Nina A1 - Monkman, Gareth J. A1 - Zimmermann, Klaus ED - Schlaak, Helmut T1 - Self-Sensing Electroadhesive Polymer Gripper with Magnetically Controllable Surface Geometry T2 - Actuator 2021, International Conference and Exhibition on New Actuator Systems and Applications: GMM conference, February 17-19, 2021, online event N2 - Compared to conventional end effectors, electro-adhesive grippers enable the handling of sensitive, soft or air-permeable materials [1]. The prehension force is based on a strong electric field generated by electrodes resulting in a polarisation of the dielectric and the generation of mirror charges in the workpiece. When the electrode supply voltage is deactivated, the electric field drops,but an electrostatic field remains due to remanent polarisation of the dielectric. The residual charge on the gripper surface reduces only slowly and in combination with other influencing factors can prevent the workpieces from being ejected temporarily or completely. In this work a solution to this problem is presented by means of gripper surface deforming caused by the applicat ion of a magnetic field to a magneto- active polymer (MAP) actuator. The in-creased distance between the workpiece and the dielectric enables precise and controlled ejection. In addition to compliance and deformability, the employment of soft smart materials enables the integration of self-sens-ing mechanisms for the measurement of surface deformation. The embedding of electrically conductive flexible electrodes within the soft silicone dielectric sup port such movements and serves as the n ecessary electrodes for electroadhesion. Since the implementation of the end effectoris based entirely on soft materials, the self-sensing magnetically controllable electroadhesive gripper (SMEG) can be produced in a shape deposition manufacturing (SDM) process [2], [3] and is highly applicable to the field of soft robotics. Y1 - 2021 SN - 9783800754540 U6 - https://doi.org/10.1002/macp.201800222 SP - 318 EP - 320 PB - VDE VERLAG CY - Berlin; Offenbach ER - TY - CHAP A1 - Egersdörfer, Stefan A1 - Zeidler, A. A1 - Wieser, A. A1 - Trompier, F. A1 - Monkman, Gareth J. A1 - Shamonin (Chamonine), Mikhail T1 - A portable accident dosimeter using tooth enamel T2 - Proceedings of the 7th International Symposium on EPR Dosimetry and Applications and the 2nd International Conference on Biodosimetry held at the Uniformed Services University of the Health Sciences, Bethesda, MD, USA, 10-13 July 2006 Y1 - 2006 PB - Pergamon CY - Oxford ER - TY - CHAP A1 - Boody, F. P. A1 - Bickel, Peter A1 - Kempf, J. A1 - Monkman, Gareth J. A1 - Höpfl, R. A1 - Hora, H. A1 - Laska, L. A1 - Krasa, J. A1 - Pfeifer, M. A1 - Rohlena, K. A1 - Juha, L. A1 - Wolowski, J. A1 - Badziak, J. A1 - Parys, P. A1 - Ryc, L. A1 - Worya, E. A1 - Szydlowski, A. A1 - Torrisi, L. A1 - Gammino S., A1 - Mezzasalma, A. T1 - Flexible laser ion sources for surface modification T2 - Plasma Production by Laser Ablation, PPLA 2003 : Messina and Catania, Italy, 18-19 September 2003 Y1 - 2003 PB - World Scientific Publishing CY - Singapore ER - TY - CHAP A1 - Monkman, Gareth J. T1 - Auswirkungen der Mechatronik auf die Entwicklungsmethodik T2 - Mechatronik Forum, OTTI, Handelskammer Regensburg, 25.-26. Oktober 2000 Y1 - 2000 ER - TY - CHAP A1 - Kreitmeier, Florian A1 - Schulz, Irene A1 - Monkman, Gareth J. A1 - Shamonin (Chamonine), Mikhail A1 - Fetisov, Yuri K. A1 - Chashin, Dmitri V. A1 - Fetisov, Leonid Y. T1 - Observation of Nonlinear Magnetoelectric Response to Magnetic Pulses in Layered Magnetostrictive-Piezoelectric Structures N2 - A detailed experimental study of the magnetoelectric response of planar bi- and symmetric trilayer composite structures to magnetic field pulses is reported. The structures consist of layers of commercially available piezoelectric (lead zirconate titanate) and magnetostrictive (permendur or nickel) materials. The magnetic-field pulses have the form of a half-wave sine function with duration of 450 μs and amplitude from 500 Oe up to 38 kOe. The measurement method is explained and the measured time dependence of the resulting voltage is presented. The most interesting case, when pulse amplitudes are sufficiently large (~ 1-10 kOe) and various types of acoustic oscillation with frequencies much larger than the reciprocal pulse length are excited in the structures, is considered. The dependencies of the magnetoelectric voltage coefficient on the excitation frequency and the applied magnetic field are calculated. By digital signal processing the results are compared with those obtained by the method of harmonic field modulation (HFM). The findings are of interest for developing magnetoelectric sensors for pulsed magnetic fields as well as for rapid characterization of magnetoelectric composite structures. T2 - Proceedings of 2012 21st IEEE ISAF held jointly with 11th IEEE ECAPD and IEEE PFM (ISAF/ECAPD/PFM), 9th-13th of July 2012, Aveiro, Portugal KW - composite materials KW - magnetoelectric effect KW - magnetoelectric sensors KW - magnetostriction KW - piezoelectricity KW - magnetic field pulse Y1 - 2012 U6 - https://doi.org/10.1109/ISAF.2012.6297739 PB - IEEE ER - TY - CHAP A1 - Schulz, Irene A1 - Putzger, Jürgen A1 - Niklas, Andreas A1 - Brandt, M. A1 - Jäger, Andreas A1 - Hardt, A. A1 - Knörzer, S. A1 - Hiller, Karl-Anton A1 - Löffler, S. A1 - Schmalz, Gottfried A1 - Danilov, Sergey N. A1 - Giglberger, Stephan A1 - Hirmer, Marion A1 - Ganichev, Sergey D. A1 - Monkman, Gareth J. T1 - PPG signal acquisition and analysis on in vitro tooth model for dental pulp vitality assessmen T2 - 2nd Applied Research Conference 2012 (ARC 2012), 25./26. June 2012, Nuremberg Y1 - 2012 SP - 142 EP - 146 PB - Shaker-Verlag CY - Aachen ER - TY - CHAP A1 - Zappa, O. A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Datzer, G. A1 - Kahled, W. A1 - Böse, Holger A1 - Tunayar, A. T1 - High Voltage Switching using Bulk GaAs T2 - Actuator 2004 : 9th International Conference on New Actuators & 3rd International Exhibition on Smart Actuators and Drive Systems, 14-16 June 2004, Bremen, Germany Y1 - 2004 PB - HVG Hanseatische Veranstaltungs-GmbH CY - Bremen ER - TY - CHAP A1 - Monkman, Gareth J. T1 - Sensors and Actuators in Automation T2 - Ostbayerisches Fachforum für Mechatronik, Roding, 16. März 2001 Y1 - 2001 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - 3D-Shape Recognition based Tactile Sensor T2 - ICST 2007, Proceedings of 2nd International Conference on Sensing Technology : Massey University, Palmerston North, New Zealand, November 26 - 28, 2007 Y1 - 2007 SP - 56 EP - 61 PB - Inst. of Information Sciences and Techn., Massey Univ. CY - Palmerston ER - TY - CHAP A1 - Schumm, M. A1 - Schwarz, E. A1 - Wahler, D. A1 - Jayaprakash, S. N. A1 - Monkman, Gareth J. T1 - The Trilopede T2 - Informatics Microsystems Information Systems Preceedings Y1 - 2012 VL - 1 IS - 1 PB - Moscow State Technical University ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Contact Identification using Tactile Arrays T2 - Proceedings of the 7th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2007), 15.-18.12.2007, Giza, Egypt N2 - The proposed method allows a robot to quantify tactile recognition of grasped objects. The responses by the robot are matched by randomly introducing objects following the completion of tactile sensor based training phases on 4 specific objects. The reproduction of the robotic contact identification is accomplished by matching threshold values of the smallest eigenvalue of the Quadric surface - called the eigenvalue trajectory. Once the grasped objects are introduced to the 2-fingered robot hand, the eigenvalue trajectory of contact surfaces are calculated by the system. Calculations are based on the degree of similarity of the characteristics between the newly received and previously trained tactile data. Experimental results indicate that the proposed algorithm allows a successful quantification of robotic contact recognition and the accomplishment of high levels of accuracy in contact identification. These results confirm that the proposed method is useful for identifying contact surfaces based on tactile sensor data. KW - Touch recognition KW - contact classification KW - tactile sensor Y1 - 2007 U6 - https://doi.org/10.1109/ISSPIT.2007.4458144 SP - 1121 EP - 1126 PB - IEEE ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Contact Classification using Tactile Arrays T2 - 2007 3rd International Conference on Intelligent Sensors, Sensor Networks and Information (ISSNIP), 3, 03.-06.12.2007, Melbourne, VIC, Australia N2 - This paper proposed a contact recognition algorithm capable of determining contact surfaces types by tactile sensor fusion. This algorithm can recognize grasped objects using a 2- fingered robot hand, on which tactile sensors are mounted. Experiments have demonstrated reliable surface classification and accurate transformation independent of object shape and orientation. The contribution of this paper regards the relations between a surface and the points cloud defining it. Particularly, we investigate on the possibility that there is some intrinsic feature of a points cloud under quadric surface, allowing us to discriminate or classify a dataset defining a surface from the acquisition noise. KW - manipulators KW - objec recognition KW - sensor arrays KW - signal classification KW - tactile sensors Y1 - 2007 U6 - https://doi.org/10.1109/ISSNIP.2007.4496848 SP - 227 EP - 232 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Contact Recognition using Tactile Sensor T2 - Proc. International Symposium on System Theory, Automation, Robotics, Computers, Informatics, Electronics and Instrumentation (SINTES13), Romania Y1 - 2007 SP - 285 EP - 290 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Pre-slip detection based Tactile Sensing T2 - Proc. 3rd International Conference on Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP 2007), Melbourne Y1 - 2007 SP - 233 EP - 238 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Contact classification using tactile arrays T2 - Proc. International Conference on Engineering & ICT 2007 (ICEI 2007), 27th to 29th November 2007, Malacca, Malaysia Y1 - 2007 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Optimisation of Prehension Force through Tactile Sensing T2 - Proc. International Conference on Engineering & ICT 2007 (ICEI 2007), Malaysia Y1 - 2007 ER - TY - CHAP A1 - Egersdörfer, Stefan A1 - Schumm, M. A1 - Kessler, C. A1 - Monkman, Gareth J. A1 - Böse, Holger T1 - Smart Fluids für die Schnittstelle Mensch-Maschine der Zukunft T2 - International Mechatronik Forum, Linz Y1 - 2006 SP - 421 EP - 428 ER - TY - CHAP A1 - Heckner, T. A1 - Straka, M. A1 - Schubert, A. A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Entwicklung eines Navigationssystems für autonome mobile Robotersysteme T2 - International Mechatronik Forum, Linz Y1 - 2006 SP - 520 EP - 527 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Pre-slip sensing using tactile sensor T2 - Proceedings / SINTES 13, International Symposium on Systems Theory, Automation, Robotics, Computers, Informatics, Electronics and Instrumentation, October 18 - 20, 2007, Craiova - Romania Y1 - 2007 SP - 279 EP - 284 ER - TY - CHAP A1 - Petchartee, Somrak A1 - Monkman, Gareth J. T1 - Pre-slip Sensing through Tactile Sensing T2 - Proc. 2nd International Conference on Sensing Technology (ICST 2007), New Zealand Y1 - 2007 SP - 62 EP - 67 ER - TY - CHAP A1 - Monkman, Gareth J. A1 - Dragoi, Daniel A1 - Egersdörfer, Stefan A1 - Füchtmeier, Bernd A1 - Nerlich, Michael T1 - Der Roboter als Hilfsmittel in der Chirurgie // International Mechatronik Forum, Linz, October 2006 T2 - International Mechatronik Forum, Linz Y1 - 2006 ER - TY - CHAP A1 - Mayer, Matthias A1 - Monkman, Gareth J. T1 - Modern permanent magnetic materials: Advances and limits T2 - Inductica - Berlin Messe, 22-24 May 2007 Y1 - 2007 ER - TY - CHAP A1 - Forster, Eva A1 - Mayer, Matthias A1 - Rabindranath, Raman A1 - Bentz, Alexander A1 - Böse, Holger A1 - Shamonin (Chamonine), Mikhail A1 - Monkman, Gareth J. T1 - Surface Control Magneto-Active Polymers (MAP) T2 - EuroEAP 2011, First international conference on Electromechanically Active Polymer (EAP) transducers & artificial muscles, Pisa, 8-9 June N2 - Smart materials change their properties with external energy supply. Besides the known ferro-fluids and Magneto Rheological Fluid (MRF) also the Electro Active Polymer (EAP) and Magneto Rheological Elastomer (MRE) belong to these intelligent materials. The latest generation of magnetic elastomers represents a new class of composite materials. This consists of small magnetized particles which are sized in the micron or even nanometer range that in turn is bounded in a highly elastic rubber matrix. These materials are very often called MRE. Only recently, it has managed to develop these materials even further, so that very soft composite materials with a young?s modulus up to 10 kPa are possible. These soft polymers could be named magneto-active polymers. The combination of polymers with magnetic materials show novel and often enhanced properties. A precisely controllable young?s modulus and hardness, giant and non-homogeneous deformation behavior and rapid response to the magnetic field opens up new possibilities for various applications. Since MAP represent a very new technology, the behavior of these materials as a function of their composition and external conditions so far are not yet sufficiently understood. Therefore, some fundamental studies are necessary. In this paper, the mechanical surface properties are studied using a micro hardness meter. This work shows the possibility to control mechanical properties at the surface of MAP with new developed magnetic systems. Y1 - 2011 ER - TY - CHAP A1 - Mayer, Matthias A1 - Forster, Eva A1 - Rabindranath, Raman A1 - Bentz, Alexander A1 - Böse, Holger A1 - Shamonin (Chamonine), Mikhail A1 - Monkman, Gareth J. T1 - Highly compliant Magneto-Active Polymers (MAPs) T2 - Actuator'11, Bremen, May 2011 Y1 - 2011 ER - TY - CHAP A1 - Drexler, C. A1 - Hirmer, Marion A1 - Danilov, Sergey N. A1 - Giglberger, Stephan A1 - Putzger, Jürgen A1 - Niklas, Andreas A1 - Jäger, Andreas A1 - Hiller, Karl-Anton A1 - Löffler, S. A1 - Schmalz, Gottfried A1 - Redlich, Britta A1 - Schulz, Irene A1 - Monkman, Gareth J. A1 - Ganichev, Sergey D. T1 - Infrared spectroscopy for clinical diagnosis of dental pulp vitality T2 - 37th International Conference on Infrared, Millimetre, and Terahertz Waves (IRMMW-THz 37), 23-28 September 2012 , Wollongong, Australia N2 - Transmission spectra of wet human teeth and dentin slices, together with blood of different flow rates were investigated over a wide spectral range, from visible to terahertz (THz) light. The results make it possible to find the optimum light frequency for an all-optical determination of pulpal blood flow and, consequently, for clinically diagnosis of tooth vitality. Y1 - 2012 U6 - https://doi.org/10.1109/IRMMW-THz.2012.6380091 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Forster, Eva A1 - Rabindranath, Raman A1 - Mayer, Matthias A1 - Bentz, Alexander A1 - Böse, Holger A1 - Shamonin (Chamonine), Mikhail A1 - Monkman, Gareth J. T1 - Characterization of ultra soft Magneto-Active Polymers (MAPs) T2 - Conference proceedings / INDUCTICA 2011, Berlin, Germany, 24 - 26 May Y1 - 2011 ER - TY - CHAP A1 - Nerlich, Michael A1 - Monkman, Gareth J. A1 - Füchtmeier, Bernd A1 - Egersdörfer, Stefan T1 - Development of a Robotic Navigation and Fracture Fixation System T2 - 1. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie (CURAC), Leipzig, 2002 Y1 - 2002 ER -