铠装铂电阻液位测量传感器研究  

Study on Water Level Detector Composed of Encoded Thermal Resistance

作　　者：张红中[1] 王文然[1] 刘志勇[1] 段泉圣[1] 

机构地区：[1]清华大学核能技术设计研究院,北京100084

出　　处：《核动力工程》2004年第1期37-40,44,共5页Nuclear Power Engineering

摘　　要：压力容器内的水位是反应堆运行中的重要参数,基于发热体在液相和汽相介质中放热系数的显著差异,本文提出了一种由铠装铂电阻组成的液位测量传感器,并给出了理论分析结果和0.1～3.0MPa压力范围内的试验结果.结果表明,该传感器原理正确,结构可行,性能可靠.The water level in a nuclear reactor pressure vessel is an important operating parameter. Based on the differences of heat transfer coefficient between liquid phase and gas phase, a level detector, which includes encoded thermal resistances, was developed. The monitoring principle, theory analysis and experimental results under pressure of 0.l-3.0 MPa were described. The analysis and experiments showed that the new system is correct in principle, reliable and feasible in structure for monitoring the water level in NHR-200 reactor and other vessels.

关 键 词：液位测量 传感器 热电阻 压力容器 反应堆 运行 铂电阻 放热系数 

分 类 号：TL363[核科学技术—核技术及应用] TP212.1[自动化与计算机技术—检测技术与自动化装置]