一种压力传感器的温度补偿方法、电路及装置
By introducing a temperature detection component and compensation model into the Wheatstone bridge pressure sensor, the current temperature and target pressure can be determined in real time, solving the temperature compensation lag problem of the bridge piezoresistive pressure sensor and improving the detection accuracy and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTH CHINA SEA INST OF OCEANOLOGY CHINESE ACAD OF SCI
- Filing Date
- 2023-05-17
- Publication Date
- 2026-07-17
AI Technical Summary
The existing temperature compensation method for bridge-type piezoresistive pressure sensors has a lag effect, resulting in insufficient pressure detection accuracy and precision.
A Wheatstone bridge structure is adopted, and a temperature detection component is formed by connecting a first fixed resistor in series on the bridge arm. Combined with the temperature detection component and the compensation model, the current temperature and target pressure value of the pressure sensor are determined in real time, and zero-point temperature drift compensation and temperature calibration are performed to eliminate the temperature detection lag problem.
It improves the accuracy and precision of pressure detection, eliminates the temperature detection lag of discrete temperature compensation schemes, reduces errors, and enhances the adaptability and versatility of the system.
Smart Images
Figure CN116593060B_ABST