用热电偶测量流体介质温度的误差分析

Errors Analysis of Fluid Medium Temperature Measurement by Thermocouple

在工业应用中,普遍采用热电偶传感器来进行温度测量。讨论了热电偶在测量温度过程中,由于热传导和热辐射的作用,使其测量误差存在的影响因素,并就提高测量精度介绍了一些措施和几种有针对性的改进热电偶装置。

The thermocouple sensor has been widely used to determine temperature in the industry. In this paper, the factors causing errors in measuring temperature due to heat transmission and radiation were discussed, and some methods to promote measurement accuracy were introduced as well as several improved thermocouple equipments.