Calibration of Pressure Sensor in Automobiles Based on ZMD Chip

Abstract:

In order to eliminate the negative effect of temperature to automobile pressure sensor whose environment temperature changes from-40°C to 130°C, a calibration circuit is designed based on ZMD chip. The temperature characters of this pressure sensor are: zero point linearly change with temperature at the rate-0.07mV/20°C; strain coefficient linearly change with temperature at the rate 3.27e-4/°C. After calibrated, the output of pressure sensor change only with pressure and the deviation value is from-0.48%FSO to +0.84%FSO，in the designing range ±2%FSO.

• Periodical: Applied Mechanics and Materials (Volumes 128-129)
• Pages: 544-547
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.128-129.544
• Online since: October 2011
• Authors: Zhong Ming Wang, Yong Zheng Zhou
• Keywords: Calibration Error, Pressure Sensor, Temperature Calibration, ZMD Chip

References

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DOI: 10.1109/16.119017

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