摘要
介绍了继电器矩阵开关在过程仪表自动校准中的应用,并通过实验比对,分析了矩阵开关对直流电压、直流电流、电阻和频率信号计量结果的影响,以及矩阵开关通电时间和温升导致的性能漂移对计量结果的影响。结果表明矩阵开关对电阻信号和小电压、小电流信号的影响较大,需要通过软件手段修正。
The article shows the application of relay matrix switch in the auto-calibration of process calibrator.It analyzes its effect on the calibration of DCV,DCI,Resistance and frequency,as well as the time and temperature shift on them.Results shows relay matrix switch has greater effect on calibration of resistance,low voltage and low current.Software correction is necessary for them.
作者
肖天雷
王舒卉
聂晓晔
Xiao Tianlei;Wang Shuhui;Nie Xiaoye(Shanghai Institute of Measurement and Testing Technology)
出处
《上海计量测试》
2020年第5期42-44,共3页
Shanghai Measurement and Testing
关键词
继电器
过程仪表
校准
影响
relay
process calibrator
calibration
effect
