Abstract
과학기술위성 2호 사용되는 구동기인 반작용 휠(Reaction Wheel Assembly, RWA)과 위성 시스템을 연결해주는 인터페이스를 담당하는 Reaction Wheel Assembly Interface Unit(RIU)의 Proto Flight Model의 개발이 완료되고 동작시험을 마쳤다. RIU는 RWA에 공급되는 전원을 켜고 끄는 스위치와 명령을 주고 받는 위성탑재 컴퓨터(OBC)의 통신 회선을 선택하는 멀티플렉서, 그리고 RWA에 연결되는 물리적 통신라인으로 구성된다. Proto Flight Model of Reaction Wheel Assembly Interface Unit(RIU) for STSAT-2 was developed. The RIU of STSAT2 has three major functions for interface between satellite system and RWAs. It has switches for RWA main power, communication Mux. and communication line driver.
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