应变天平零点温度漂移补偿研究  

Study of temperature drift compensation in strain gauge balance

作　　者：李纯[1] 李琦[1] 姚程炜[1] 于常安[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《传感器世界》2016年第7期14-17,共4页Sensor World

摘　　要：应变天平弹性体材料与电阻应变计材料的温度系数不同,导致天平惠斯通电桥天平零点温度输出。针对天平温度零点输出,从补偿材料和补偿方式两个方面开展补偿修正研究,采用圆铜漆包线、镍材(镍丝和补偿电阻应变片)、镍铬丝等材料展开大量补偿试验,结果表明试验达到预期目标0.05u V/V/℃,该研究适用于惠斯通桥路补偿。The coefficient of difference between elastic beam and the material temperature that of resistance strain gauge should lead to the zero drift of Wheatstone bridge of the strain gauge balance. Aiming at the zero temperature output of the balance, the research on the compensation s carried out from two perspectives of compensation material and compensation method. A lot of experiments are completed with many materials, such as roundcopper enameled wire, Ni （nickel wire and compensation resistance strain gauge）, Ni-Cr wire and so on. Test results achieve the desired goal. The study can be used in some compensation for Wheatstone bridge of strain.

关 键 词：应变天平 零点温度漂移 补偿材料 补偿方法 

分 类 号：TH715.1[机械工程—测试计量技术及仪器]