FIELD: instrumentation.
SUBSTANCE: invention can be used in the production of metal-film pressure sensors with increased measurement accuracy and operable over a wide temperature range. The method for adjusting a thin-film pressure sensor consists in introducing a temperature-sensitive compensation resistor into the bridge circuit, changing the external temperature, determining the initial output signal of the sensor and changing it from the action of temperature, while the temperature-sensitive compensation resistor is sequentially completely short-circuited and the required resistance is determined, according to the invention, before determining the initial output signal determine the exact value of the temperature coefficient of resistance (TCR) temperature-sensitive compensation resistor, and the required resistance is determined using the following mathematical expression:
.
EFFECT: improved accuracy of thermal compensation.
1 cl, 1 dwg
Authors
Dates
2023-08-08—Published
2023-04-24—Filed