Participation in the absolute gravity comparison with a compact cold atom gravimeter

作     者：付志杰 王启宇 王兆英 吴彬 程冰 林强 Zhijie Fu;Qiyu Wang;Zhaoying Wang;Bin Wu;Bing Cheng;Qiang Lin

作者机构：Institute of Optics Department of Physics Zhejiang University Center for Optics and Optoelectronics Research College of Science Zhejiang University of Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2019年第17卷第1期

页      面：52-57页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 081601[工学-大地测量学与测量工程] 0816[工学-测绘科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Key Research and Development Program of China(Nos.2017YFC0601602 and 2016YFF0200206) the National Natural Science Foundation of China(Nos.61727821,61475139,11604296,and 11174249) 

主　　题：Participation absolute gravity comparison compact cold atom gravimeter 

摘      要：The first Asia-Pacific Comparison of Absolute Gravimeters(APMP.M.G-K1) was organized by the National Institute of Metrology(NIM) of China from December 21, 2015 to March 25, 2016 in Changping, Beijing. Our compact cold atom gravimeter(CCAG) was transported from Hangzhou to Beijing with a long distance of about1200 km to participate in this comparison. The CCAG is the only one, to the best of our knowledge, that is based on the principle of atom interferometry among all the instruments. Absolute gravity in the indicated three test sites has been measured as requested by the organizer. The sensitivity of our CCAG is estimated to be90 μGal∕Hz p, even when the measurements are carried out without any vibration isolation. Besides, the accuracy of this gravimeter has been evaluated to be about 19 μGal by considering the significant system errors.Our results show a good agreement with the given reference value.