液氢低温压力传感器校准技术研究  

Research on Calibration Technology of Liquid Hydrogen Cryogenic Pressure Sensor

作　　者：赵珊珊[1] 李星[1] 耿亚璋 Zhao Shanshan;Li Xing;Geng Yazhang(Beijing Institute of Aerospace Testing Technology,Beijing,100074)

机构地区：[1]北京航天试验技术研究所,北京100074

出　　处：《制冷与空调（四川）》2021年第5期761-765,共5页Refrigeration and Air Conditioning

基　　金：国防军工技术基础科研项目:航天液体发动机试验低温、水击压力传感器现场校准技术研究(JSJC2013203A001)。

摘　　要：旨在针对液氢低温压力传感器进行校准技术研究,利用我所自行研制的液氢低温压力传感器校准装置,在(20~80)K温区范围内实现对液氢低温压力传感器的连续可变温度校准,分析校准温度的改变对液氢低温压力传感器校准结果的影响,并将上述校准结果同常温校准结果相比较,发现传感器在液氢温区下校准同常温下校准的校准结果存在较大偏差:相比于常温校准,液氢温区校准的液氢低温压力传感器的非线性、迟滞、重复性和精度均有明显提高。This paper aims to study the calibration technology of liquid hydrogen cryogenic pressure sensor,using the liquid hydrogen cryogenic pressure sensor calibration device developed by our institute,continuous variable temperature calibration of liquid hydrogen cryogenic pressure sensors in the(20~80)K temperature range.Analysis of the effect of changes in calibration temperature on the calibration results of liquid hydrogen cryogenic pressure sensors,and compare the above calibration results with the normal temperature calibration results,found that there is a big deviation between the calibration results of the sensor in the liquid hydrogen temperature and the normal temperature:compared with the normal temperature calibration,the liquid hydrogen temperature calibration of the liquid hydrogen cryogenic pressure sensor has a significant improvement in non-linearity,hysteresis,repeatability and accuracy.

关 键 词：液氢 低温 压力传感器 校准 

分 类 号：V455[一般工业技术—材料科学与工程]