FIELD: test equipment.
SUBSTANCE: invention refers mainly to land tests and drills of spacecraft thermal control system. According to invention, heat carrier deficiency in the system of thermal control system simulator and payload module is determined in advance. For that purpose, heat carrier temperature is measured regularly in fluid paths of the simulator and payload module before payload module test. Gas pressure in gas cavity of pressuriser of thermal control system simulator is measured at mean measured temperature below temperature of heat carrier and gas loading to the simulator. The pressure is compared to acceptable minimum value determined by a certain relation. If the pressure measured is below acceptable minimum then a heat carrier amount missing is added to the simulator fluid path from separate small compensation device.
EFFECT: improved long-term operation reliability of thermal control system simulator.
6 dwg
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Authors
Dates
2015-02-20—Published
2013-04-17—Filed