热强度试验中热电偶调理模块的设计与应用

热强度试验现场环境复杂,会对热电偶、热流等微弱电压信号产生较大电磁干扰,影响测量精度甚至控制信号精度。本文描述了热电偶调理模块的设计,对小信号进行隔离放大,有效抑制热强度试验存在的干扰,提高了系统的精度。

Thermocouple conditioner module design and application

Since complex environment in the thermal strength test, there is large electromagnetic interference to affect measurement accuracy of low voltage signal such as thermocouples and heat flux. This article This article describes the design of thermocouple conditioner module, it isolate and amplify the low voltage signal, effectively reduce interference in the thermal strength test, improve the accuracy of the system.