某高超声速试验设备带式电阻元件测温技术

针对极端条件下电阻元件的在线温度测量问题，研制一种基于热电偶的带电测温装置。对其结构进行优 化，解决测温探头与电阻元件之间的传热、绝缘以及装置自身的密封、强度等问题；通过试验得到装置在马赫数5 和6 条件下的温度测量值，将稳态下的测量值与计算值及来流温度值进行对比。结果表明：该装置的实测值真实可 信，电阻元件处于安全运行温度范围之内，可为完善加热器电阻元件的状态监控提供依据。

Temperature Measurement Technology of Certain Type Hypersonic Test Facility Using Ribbon Resistance Element

Aiming at the problem of on-line temperature measurement of resistance element under extreme conditions, a live temperature measurement device based on thermocouple is developed. The structure of the device was optimized to solve the problems of heat transfer and insulation between the temperature probe and the resistance element, as well as the sealing and strength of the device itself. The temperature measurement values of the device at Mach numbers 5 and 6 were obtained through experiments, and the measured values at steady state were compared with the calculated values and the incoming flow temperature values. The results show that the measured values of the device are true and credible, which ensures that the resistance element is in the safe operating temperature range, and provides a basis for improving the state monitoring of the heater resistance element.