【摘要】 为在更高精度上检验等效原理,采用基于卫星平台利用空间超静环境检测等效原理的方法,结合美国斯坦福大学正在研制的STEP卫星,将理论上对等效原理失效的检验转化为工程上可实现的物理量测量,分析了利用卫星检验等效原理必须突破的Drag-free卫星和超高精度加速度计的关键技术,研究了针对STEP任务设计的Drag-free控制系统和超高精度加速度计的方案与分析,作为实现在10-18精度上等效原理检验的技术支撑.更多还原

【Abstract】 For the purpose of testing the Equivalence Principle(EP) to unprecedented accuracy,experiment based on satellite in space becomes increasingly popular because of the environmental limitation on the earth.We transferred the theoretical test of EP to measurement of the rate of fall of test masses in engineering.For the ongoing development of the satellite test of the Equivalence Principle(STEP),drag-free satellite and super-accurate accelerometer was key technology.We presented design and analysis of the drag-free control system and the differential accelerometers for STEP to ensure the test of EP to one part of 1018.更多还原