燃气灌装秤的三次样条插值误差补偿法  

Error Compensation Algorithm of Gas Filling Scale Based on Cubic Spline Interpolation

作　　者：王姝敏[1] 乔爱民[1] 

机构地区：[1]蚌埠学院电子与电气工程学院,安徽蚌埠233000

出　　处：《广东石油化工学院学报》2017年第4期64-66,共3页Journal of Guangdong University of Petrochemical Technology

基　　金：蚌埠学院自然科学研究项目(2014ZR11)

摘　　要：误差补偿法是通过改善仪器硬件和软件的设计对原始误差进行修正,是提高仪器精度最为经济有效的方法之一。文章利用三次样条插值法得到在全温度测试条件下燃气灌装秤采集的重量信号的补偿值,并以软件编程的方式加入设计流程中,提高设备的灌装精度。对比补偿前后实验测量数据,证明在全温度范围内可以有效改善温度对系统误差的影响,实现零点标定,基本达到了利用软件设计方法对系统误差补偿的设计目标。Error compensat ion algor i thm c an cor rect the or iginal er ror by improving the design of the inst rument ^ hardware and sof tware, and is one of the most effective and economical ways to improve the precision of the instrument. The cubic spl ine interpolation method is used to obtain the compensat ion value of the weight signal col lected by gas filling scale under the condition of full temperature test, in which the design process is added programmatical ly to improve the filling precision of the equipment. The comparison of the experimental data wi th and wi thout compensat ion shows that the ef fect of temperature on system error is reduced with the zero cal ibration fulfilled in all temperature range, and the design goal of compensat ion for system error with a sof tware - based method is achieved.

关 键 词：误差补偿 精度 三次样条 

分 类 号：TH823[机械工程—仪器科学与技术]