热敏电阻在液体火箭发动机试验中的应用  

Application of thermistor in liquid rocket engine testing

作　　者：管理[1] 

机构地区：[1]北京航天试验技术研究所,北京100074

出　　处：《低温工程》2007年第6期54-58,共5页Cryogenics

摘　　要：阐述了目前应用于低温推进剂液体火箭发动机试验的热敏电阻温度传感器的特点,介绍了热敏电阻温度传感器在液体火箭发动机试验中的应用方案,包括信号变换器设计、传感器校准数据处理方法、传感器自热效应分析以及测量系统组成,分析了影响测量不确定度的因素,给出了应用热敏电阻温度传感器的测量不确定度小于0.3 K。The characteristics of thermistor temperature sensors used in the cryogenic liquid rocket engine testing were presented, the thermistor temperature sensors application scheme in liquid rocket engine testing was introduced, including design of the signal convertor and method dealing with thermistor temperature sensors calibration data. The thermistor temperature sensors self heating was analysed and measure system composition was also introduced. The measurement accuracy associated with thermistor was analysed, the uncertainty measurement accuracy of thermistor temperature sensors, which is less than 0.3 K, was presented.

关 键 词：热敏电阻 温度测量 发动机试验 

分 类 号：TB663[一般工业技术—制冷工程]