Kim, Geon Woo [University of Science and Technology, Daejeon (Korea, Republic of) Kim, Ki Bok [Korea Research Institute of Standards and Science, Center for Safety Measurement, Daejeon (Korea, Republic of) Baek, Kwang Sae [Elache Co., Busan (Korea, Republic of) Study on electrical impedance matching for broadband ultrasonic transducerĮnergy Technology Data Exchange (ETDEWEB) All the work done was of help on the calibration field and pressure measurements employing unbounded strain gauge pressure transducers Concerning bridge transducers, existing models confirmed the conditions of linearity and sensitivity related to the electrical signal. Electrical models for potenciometric transducers were proposed at the beginning and subsequently comproved according our experiments. Initially, a theoretical study was accomplished to evaluate metallic alloys behavior on sensing elements manufacturing, and diaphragm was used as deflecting elements. Models, characteristics and calibration procedures were also analysed. Strain gauges pressure transducers types are presented. International Nuclear Information System (INIS) The results show the feasibility of static and dynamic pressure distribution imaging from the boundary measurements of the fabric sensors. We evaluated the piezo-capacitive nanoweb sensor, piezo-electric nanoweb sensor, and hybrid fabric sensor. Electrical impedance tomography (EIT) and electric source imaging are applied for reconstructing pressure distribution images from measured current-voltage data on the boundary of the hybrid fabric sensor. In this study, we integrate the piezo-capacitive and piezo-electric nanowebs with the conductive fabric sheets for detecting static and dynamic pressure distributions on a large sensing area. Recently, highly flexible and soft pressure distribution imaging sensor is in great demand for tactile sensing, gait analysis, ubiquitous life-care based on activity recognition, and therapeutics. Integration of piezo-capacitive and piezo-electric nanoweb based pressure sensors for imaging of static and dynamic pressure distribution.
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