모멘텀 휠의 내부 진공 유지를 위한 커넥터 밀봉방법 개발

Development of Connector Sealing Method for Maintaining of Vacuum in the Momentum Wheel

In general, we utilize momentum wheel to control spacecraft. It needs vacuum test to analyze the effect of space environments. The conventional vacuum connector which is composed of steel has problems for test with built in momentum wheel because of weight, thermal expansion, etc. We suggest possibility to manufacture the vacuum connector using aluminum mount, epoxy and industrial D-Sub considering cost, weight. We verify the performance through vacuum test.