우주용 냉각기의 미소진동을 활용한 압전 에너지 하베스팅에 관한 연구

Abstract

Pulse tube-type spaceborne cooler, used to cool down the infrared imaging sensor, produces undesirable micro-vibration during its on-orbit operations and its micro-vibration seriously affects the image quality of the observation satellite. To assure the high-quality image, the cooler-induced vibration has always been subjected to an isolation objective. However, in this study, we focused on the feasibility of positively utilizing the cooler-induced vibration as a renewable power as well as simultaneously assuring vibration isolation capability. To implement this strategy, we proposed a complex system composed of energy recycling system combined with passive vibration isolator. The basic characteristics of the complex system were demonstrated by dual functions of the energy generation and the vibration isolation was then evaluated through performing the function test at assembly level of the complex system.