A Wireless Multi-Sensor Dielectric Impedance Spectroscopy Platform
AbstractThis paper describes the development of a low-cost, miniaturized, multiplexed, and connected platform for dielectric impedance spectroscopy (DIS), designed for in situ measurements and adapted to wireless network architectures. The platform has been tested and used as a DIS sensor node on ZigBee mesh and was able to interface up to three DIS sensors at the same time and relay the information through the network for data analysis and storage. The system is built from low-cost commercial microelectronics components, performs dielectric spectroscopy ranging from 5 kHz to 100 kHz, and benefits from an on-the-fly calibration system that makes sensor calibration easy. The paper describes the microelectronics design, the Nyquist impedance response, the measurement sensitivity and accuracy, and the testing of the platform for in situ dielectric impedance spectroscopy applications pertaining to fertilizer sensing, water quality sensing, and touch sensing. View Full-Text
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Ghaffari, S.A.; Caron, W.-O.; Loubier, M.; Rioux, M.; Viens, J.; Gosselin, B.; Messaddeq, Y. A Wireless Multi-Sensor Dielectric Impedance Spectroscopy Platform. Sensors 2015, 15, 23572-23588.
Ghaffari SA, Caron W-O, Loubier M, Rioux M, Viens J, Gosselin B, Messaddeq Y. A Wireless Multi-Sensor Dielectric Impedance Spectroscopy Platform. Sensors. 2015; 15(9):23572-23588.Chicago/Turabian Style
Ghaffari, Seyed A.; Caron, William-O.; Loubier, Mathilde; Rioux, Maxime; Viens, Jeff; Gosselin, Benoit; Messaddeq, Younes. 2015. "A Wireless Multi-Sensor Dielectric Impedance Spectroscopy Platform." Sensors 15, no. 9: 23572-23588.