热电阻和热电偶一般什么情况下需要温度补偿

2025-03-14 20:29:38
推荐回答(5个)
回答1:

热电阻不需要补偿,只有热电偶才需要;热电偶温度补偿是在工艺要求比较严格的条件下才进行冷端温度补偿,一般不需要。

热电偶(thermocouple)是温度测量仪表中常用的测温元件,它直接测量温度,并把温度信号转换成热电动势信号,通过电气仪表(二次仪表)转换成被测介质的温度。

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回答2:

热电阻不需要补偿,热电偶的话应该都要吧,根据不同的分度号选择不同的补偿导线。

回答3:

热电阻是不需要温度补偿,热电偶的测量原理是测量热电偶冷端和热端的温差来测得温度的,而冷端却不是标准的零度,所以要把冷端到零度的温差补偿上才能测出实际的温度

回答4:

热电阻和热电偶距离显示仪表较远时需要温度补偿

回答5:

热电阻需要补偿沓一般采用电桥进行补偿,主要是高海拔和恶劣的环境中,热电偶都需要冷端补偿的,一般用补偿导线,补偿导线和热电偶的分度号是对应的,在基础的工具书中都有的

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