微重力下低温液体质量测量技术进展

Development of mass gauging technology for cryogenic liquid in microgravity

针对空间低温液体需要高精度质量测量技术的问题,提出了微重力下低温液体测量技术的几种方法,介绍了压缩质测法、光学质测法、压力-体积-温度法和射频质测法的测量原理及研究进展,并对上述4种测量方法进行了比较和评述,最后对微重力下低温液体测量技术进行了总结和展望。

Aimed at the problem that cryogenic liquid in space needs accurate mass gauging technolo- gy, several methods of mass gauging for cryogenic liquid in microgravity were put forward. The principle and research progress of compression mass gauging, optical mass gauging. Pressure-volume-temperature method and radio frequency gauging were introduced. The four methods were compared and commented. Finally, the mass gauging technology for cryogenic liquid in microgravity were summarized and prospected.