如果加热电路工作，它加热温度传感头，从而改变传感头的阻值。
If the heater circuit is working, it heats the sensing blub, thus changing the resistance of the bulb.
本文将传感头简化成有限长圆柱，计算出在微波场中传感头的能量损耗和温度变化。
In this paper, we have simplified the sensor as a finite length cylinder, and calculated the energy loss and the temperature error.
最后，对测量系统中的误差进行了分析，结果表明传感头的横向响应和温度对测量的影响均不明显。
Last, the error of the measuring system is being analyzed, and results show that the cross-axis sensitivity of the sensor and the temperature affect the measurement little.
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