热容法测量推进剂剩余量的地面试验

摘要

Thermal Propellant Gauging System (PGS) method is a kind of new method to measure the amount of remaining propellant It is convenient to carry out and has high measurement precision,which is suitable for the measurement at End-Of-Life (EOL).A large number of ground tests on a type of tank are needed to verify the feasibility and accuracy of PGS and give suggestion for its application on-orbit.The data are collected through the tests of different filling quantity of test liquid under different heating conditions.According to the data analysis,the measurement precision is obtained.The good performance of PGS is showed.And the suggestion of application is presented.The profile is of reference value in the application of PGS on-orbit.%热容法作为一种新的推进剂剩余量测量方法,由于具有实施方便、测量精度高等优点,适用于卫星在轨寿命末期的推进剂测量.为了验证热容法的可行性,考察热容法的测量精度,并对星上热容法方案给出实施建议,对某贮箱进行了热容法试验验证研究.在不同加热工况下,对不同试液装填量进行试验,采集不同测温点的热响应数据,通过对试验数据的分析,得出了热容法的测量精度,验证了热容法的可行性,并且提出了具体的实施建议,为热容法的后续在轨应用提供参考.