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一、前言地球表面各点的重力值g(又称重力加速度值)在力学计量、热工计量以及电学计量中均十分重要。重力值的大小及其不确定度对很多计量结果有极大影响。从20世纪中叶开始直到如今,由于军事、地球科学、航天航空、石油矿业及计量等迫切需求,美(NIST)、意(INRIM)、中(NIM)、日(NMIJ)、法(LNE)、德(PTB)、英(NPL)等国计量工作者利用激光干涉原理研制出固定式和移动式绝对重力仪,其重力值测量
I. INTRODUCTION The gravitation value g (also called gravitational acceleration value) at each point on the earth’s surface is very important in mechanics, thermometry and electrical measurement. The magnitude of gravity and its uncertainty have a large impact on many measurement results. From the middle of the 20th century till now, NIST, NIM, NMIJ, LNE, NMI, Japan and other countries are in urgent need of military, geoscience, aerospace, oil and mining and metrology. German (PTB), Britain (NPL) and other countries using metrology workers to develop the principles of laser interferometry and mobile absolute gravimeter, the gravity measurement