Correction of a Piezoresistive Pressure Sensor Using
a Microcontroller

D. aponjic´ and A. igic

Department of Electronics 120, Vinca Institute of Nuclear Sciences, PO Box 522, Belgrade, 11001 Yugoslavia
e-mail: djole@rt270.vin.bg.ac.yu

Received December 23, 1999; in final form, June 21, 2000

Abstract—A smart piezoresistive pressure sensor using a microcontroller is described. The microcontroller
ensures temperature compensation and linearization of the sensor, as well as the data exchange. To compensate
for the sensor’s imperfection, approximation of the sensor inverse response function by a second-order polyno-
mial in terms of pressure and temperature is used. The maximum measurement error with respect to the full
measurement range lies within ±0.1% compared to the ideal sensor response function within the temperature
range of 0–70°C.

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.