一种模拟传感器非线性校正电路设计

The Design of Nonlinear Correcting Circuit for Analog Sensor

该文针对模拟型传感器存在的非线性问题,设计了一种函数变换电路,用硬件方式实现非线性校正。由传感器的传输特性推导校正函数,利用模拟集成器件进行电路设计。校正电路以传感器的输出电压作为输入量,输出电压值与被测物理量成线性关系。通过simulink仿真软件对设计方案进行仿真分析。

According to the nonlinear problem of analog sensors, this paper pro＇poses a function transforming circuit. It realizes nonlinear correction on hardware. The correction function is derived from the transport characteristic of the sensor. The design of the compensation circuit adopts analog integrated devices. The circuit uses the output voltage of the sensor as its input and its output is linear with the measurand. The program is simulated by the software of Simulink.