基于最小二乘的PT100高效处理方法

his thesis compares the PT100 sensor data for some commonly-used approach. in view of their problems,the thesis presents a new solution, Based on least squares fitting of the piecewise linear, according to this method to obtains each section of PT100 resistance number - temperature linear function relationship, the temperature value and the actual value degree of approximation is very good,the precision is very high,so the method can solve the majority of problems which in the practical application meets. By using temperature testing instrument, the test achieves the very good effect, satisfied the majority of project request.