Sensing head of steel rail thermometric indicator

The invention provides a sensing head of a steel rail thermometric indicator. The sensing head comprises metal cylinders, at least two pieces of magnetic steel, a temperature-sensitive member, a fixation support, a fastener and a lead-out pipe. According to the sensing head of the steel rail thermometric indicator, provided by the embodiment of the invention, the sensing head is attached to a steel rail through the magnetic steel, a voltage difference changing along with temperature is obtained through the temperature-sensitive member, the voltage difference is accelerated under the effect of a magnetic field, and through processing of a subsequent circuit, an accurate steel rail temperature value can be finally obtained. The sensing head of the steel rail thermometric indicator, provided by the embodiment of the invention, can improve the accuracy and efficiency of data acquisition. 本申请提供种钢轨测温仪的感应头。所述感应头包括：金属柱体，至少两个磁钢，感温件，固定支架，紧固件，引出管。本申请实施例提供的种钢轨测温仪的感应头，通过磁钢将感应头吸附于钢轨上，并通过感温件获取随着温度变化的电压差，该电压差在磁场的作用下获得加速，并通过后