【摘要】 基于激光干涉法的自由落体原理,中国计量科学研究院研制了最新的NIM-3A型绝对重力仪。该仪器参加了第9届全球绝对重力仪国际比对CCM.G-K2,根据公布的国际比对结果,NIM-3A型绝对重力仪的测量结果与参比各仪器的测量结果达到了等效一致,测量结果的合成标准不确定度为5.3μGal。更多还原

【Abstract】 Based on laser interference technology and free-fall theory,the National Institute of Metrology（China） has developed the latest NIM-3A type absolute gravimeter.This instrument has participated in the 9^th international comparison of absolute gravimetries CCM.G-K2,according to the published result of CCM.G-K2,the NIM-3A type absolute gravimeter with the combined standard uncertainty of 5.3 μGal is agreed with the key comparison reference value and the degree of equivalence is gained.更多还原