摘要
热电阻温度测量中 ,热电阻的非线性、不平衡电桥的非线性及连线电阻都会给测量带来误差 ,多路测量中模拟多路开关的应用也会给测量造成不良影响 ,本文通过恒流源及模拟多路开关的合理应用克服了上述误差 ,在某测量仪表中实现了高精度的 16路温度测量。
Reasonably using fix current source and multi channel switch,one way is brought forward,that can eliminate the error in temperature measurement producing by non linearity of thermal resistance and an unbalanced bridge and lead resistance.A good result with the method has been obtained in one measurement instrument.
出处
《测控技术》
CSCD
2002年第10期9-10,16,共3页
Measurement & Control Technology
基金
甘肃工业大学科研基金资助项目
