Comparison of various calculation methods for pressure sensor thermal zero drift compensation

In the actual application of pressure sensors, due to the mismatch of the force-sensitive resistor and the influence of the leakage current, the zero-point drift phenomenon will occur. This phenomenon affects the accuracy of the pressure sensor to a certain extent. With the continuous expansion of the application range of the pressure sensor , The requirements for measurement accuracy continue to increase, so the correction of zero-point drift has become an important research topic. Today, when computer technology is widely used, it is possible to compensate for the zero-point drift and nonlinear software of pressure sensors. This article combines current Applying a variety of common compensation calculation methods, through programming, the pressure sensor thermal zero drift phenomenon has been compensated. The results show that the nonlinear function polynomial fitting normalization method and the neural network method fit the data with high accuracy. It has a compensation effect that cannot be achieved by other methods.