Title :
Piezoelectric sensor for foot pressure management
Author :
Bhat, Sudhakar ; Webster, John G. ; Tompkins, Willis J. ; Wertsch, Jacqueline J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The design and fabrication of a piezoelectric sensor which can be used for various pressure measurement applications is discussed. The sensor is 42 mm×19 mm×2 mm, with the piezoelectric film thickness alone being 52 μm. The sensor is rugged and inexpensive, and it operates with simple, power-efficient electronics. The circuitry used and the problems involved in taking pressure measurements under the bony prominences of the foot are discussed. A major problem is that the sensor does not respond to steady pressures
Keywords :
biomechanics; biomedical electronics; biomedical measurement; piezoelectric transducers; pressure measurement; pressure transducers; bony prominences; foot pressure management; piezoelectric sensor; power-efficient electronics; Capacitance; Capacitors; Circuits; Foot; Force sensors; Operational amplifiers; Piezoelectric films; Radiofrequency amplifiers; Switches; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96276
