우주환경모사를 위한 대형열진공챔버 국산화 구축

A Large thermal vacuum chamber (LTVC) for space environment simulation on large satellites was successfully developed and constructed by KARI (Korea Aerospace Research Institute) in Korea with a local company. This chamber has an effective diameter of 8 meters and depth of 10 meters, and is composed of vacuum system, thermal control system, and anti-vibration system. Temperature below -190 ℃ is maintained over the thermal shroud wrapping a satellite under 3.7×10?? ㎩ (5×10?? torr) vacuum level, and optical test can be done in this chamber by seismic mass with 10?? grms or lower vibration level. In addition, the shroud temperature can be increased up to 123 ℃ using halogen lamps. Chamber control program based on PLC (Programmable Logic Controller) could control this large thermal vacuum chamber automatically.