液位测量的方法很多，针对传统液位传感器难以实现准确可靠的液位测量，提出了一种多点感温式液位传感器。它是基于发热体在气(汽)体和液体中放热系数差异显著的特点，设计的一种变液位测量为温差测量的传感器。实验表明，研制的多点感温式液位传感器原理正确，结构可行，性能可靠，可承受高温、高压，能够准确地判断出液气(汽)界面，有必要推广到压力容器内应用。
Many methods of measuring liquid level,it was difficult to achieve accurate reliable monitor the liquid level with traditional sensor.In this paper,a new sensor for the measurement of liquid level has been devel-oped,which includes the sensor for the multi-point temperature sensing of liquid level measurement.Design principle of sensor was based on the differences of heat transfer coefficient between liquid phase and gas phase. Experimental data have shown that the system was correct in principle,reliable and feasible in structure ,and can bear high temperature and high pressure for monitoring the liquid level in a pressure vessel and other ves-sels.The sensor can accurately determine the liquid and gas (vapor)the location of the interface.It’s suitable for monitoring the level in a nuclear reactor pressure vessel.
参考文献
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