可变发射率热控器件的研究进展

THE DEVELOPMENT OF THE VARIABLE EMITTANCE THERMAL SUITE

可变发射率热控器件可替代机械式热控百叶窗,从而在航天器热控系统中得到应用,是微小卫星的关键技术之一。综述了该类器件的研究现状。介绍了电致变色、静电辐射、微机电(MEMS)、热致变色可变发射率热控器件的工作原理及特性,并归纳了该类器件的发展趋势。

Venetian blind radiators can be replace by the variable emittance thermal suite in thermal control system of spacecraft, and it is one of key technologies for microsatellite. Its status is synthetically introduced. The basic principle and properties of electrochromic devices, electrostatic radiators, micro-machine (MEMS) louvers and thermochromic devices are described. The developing trend of the variable emittance thermal suite is discussed.