基于示值修正机车车辆称重台非线性误差的方法  

Method Based on Indication to Correct the Non-linearity Error for Rolling Stock Weighing Equipment

作　　者：黄永刚[1] 

机构地区：[1]中国铁道科学研究院标准计量研究所,北京100081

出　　处：《铁道机车车辆》2017年第4期70-72,共3页Railway Locomotive & Car

摘　　要：机车车辆称重台实际的输入输出关系并不是严格的线性关系。这种非线性特性造成了测量结果的非线性误差,制约了其测量精度。提出以最小二乘法实现对机车车辆称重台的测量示值进行非线性修正,来减小非线性特性对测量结果造成的影响,提高测量精度。试验结果证实了该方法的正确性和有效性。The actual input-output relationship of rolling stock weighing equipment is not strictly linear relationship. This non-linear characteristic causes nonlinearity error of the measurement results, and restricts its measurement accuracy. The least squares method is proposed to achieve non-linear correction for the indication of rolling stock weighing equipment, thereby reducing the influence of non linear characteristic on the measurement results and improving the measurement accuracy. Test results approved the correctness and va lidity of the method.

关 键 词：机车车辆称重台 非线性修正 最小二乘法 

分 类 号：U260.59[机械工程—车辆工程]