纺纱丝线张力动态监测及误差校正

Dynamic Measurement of Yarn Tension and Error Correction

针对纺纱丝线张力测量,设计了三辊式张力传感装置。通过对硅压阻式压力传感器的工作机理分析非线性误差。将传感器输出曲线转换为误差曲线,采用多项式法进行曲线拟合,并对比了不同阶次拟合数据效果。经修正后的测量数据大大减小了非线性误差,提高了测量精度。

Three-roller tension sensing device was designed for the measurement of silk thread tension. Nonlinear error was analyzed by the mechanism of pressure resistance sensor. Output curves were converted to error curves, and the curves fitting was obtained by polynomial method. Comparing different order fitting data, the result shows that the measuring accuracy is improved greatly by reducing the nonlinear error.