最小二乘法在高精度温度测量中的应用

Application of least square method in temperature measurement with high accuracy

通过硬件电路对A级工业铂电阻Pt10 0温度传感器的非线性进行改善 ,在此基础上利用最小二乘法 ,给出了一个测温的多项式。从而很好地解决了铂热电阻不平衡电桥测温中的非线性误差。

WT5”BZ]The nonlinearity of sensor is improved with the hardware circuit when the A class industrial Pt100 temperature sensor is used to measure temperature, and on the basis of improving the nonlinearity a polynomials is given by the principle of least square method.A good result with the method in the viscosity designedh as been obtained by us. [WT5”HZ]