这种本身带有温度自动补偿装置一探头控制器的瞬时表面测温探头,从原理上讲能够使敏感端的温度和被测点的温度相等。但实际上用于“探头控制器的电压放大倍数K值有限,特别是用于自动温度控制系统K值不能太大,否则要影响系统的稳定性。因此,还是存在一定数值的补偿误差。本文对瞬时表面测温探头的补偿误差进行了分析和推导,并给出了计算公式。为了保证正确使用,文章最后提出了对”探头“质量检查的初步措施,以及对受热后变软的被测物体的表面的处理方法。 This instantaneous surface temperature probe, which has its own temperature compensation device and a probe controller, can theoretically make the temperature at the sensitive end equal to the temperature at the measured point. However, the voltage magnification K used for the ”probe controller“ is actually limited, especially for the automatic temperature control system. The value of K can not be too large, otherwise it will affect the stability of the system. Therefore, there is still a certain value of compensation error. In this paper, the compensation error of the instantaneous surface temperature probe is analyzed and deduced, and the calculation formula is given.In order to ensure the correct use, the article finally puts forward the preliminary measure of the ”probe" quality inspection, The measured object surface treatment.