Self-powered wireless thermoelectric sensors |
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| Affiliation: | 1. Department of micro- and nanoelectronics, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31, Kashirskoe sh., Moscow, 115409, Russia;2. Induko Ltd., 32/2 Seslavinskaia str., Moscow, 121309, Russia;1. West Pomeranian University of Technology, Institute of Material Science and Engineering, Piastow Av. 19, PL-70310, Szczecin, Poland;2. Semnan University, Department of Mechanical Engineering, Semnan, 35131-19111, Iran;3. West Pomeranian University of Technology, Institute of Physics, Piastow Av. 48, PL-70311, Szczecin, Poland;4. Warsaw University, Department of Chemistry, Laboratory of Nanomaterials Physics and Chemistry, 1 Pasteur Str., PL-02093, Warsaw, Poland;5. Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska 141 Street, 02-507, Warsaw, Poland;6. Technische Universität Dresden, Institute of Lightweight Engineering and Polymer Technology, Holbeinstraße 3, 01307, Dresden, Germany;7. Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006, Madrid, Spain;1. Department of Electrical & Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117576, Singapore;2. Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, 117456, Singapore;3. Center for Intelligent Sensors and MEMS, National University of Singapore, 4 Engineering Drive 3, 117576, Singapore |
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| Abstract: | Sensors capable of measuring various performance parameters of an operational power generation unit could help improve system performance and overall efficiencies. For example, measurement of temperatures, temperature differences, or exhaust gas concentrations could provide both a quick quantitative and qualitative assessment of system health and allow for operation of power units with smaller safety margins and therefore higher efficiencies. For this study a technique is presented that can transmit data about an operational system wirelessly in real-time to an external location. For these experiments thermoelectric element leads were connected to a solenoid coil. When the thermoelectric was exposed to a temperature difference a current was generated in the thermoelectric and solenoid coil resulting in a magnetic field. A receiver was then used to measure the changes in magnetic field of the system. Two primary configurations were developed to test this wireless sensor configuration: dynamic and static. For dynamic measurements a pendulum and pneumatic air cylinder were used to simulate a moving component that may pass the external Hall sensor such as a fan or turbine blade. For dynamic measurements it was determined that for accurate results it is very important to maintain the distance constant between the Hall sensor and solenoid coil. For stationary measurements the temperature difference across the thermoelectric was related to output measurements from the Hall sensor. Overall, results show that data can be wirelessly transmitted to an external location using this method. |
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| Keywords: | Thermoelectric Wireless Self-powered Sensor Heat flux |
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