Piezoelectric sensor for foot pressure management

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