CHZ-Ⅱ海洋重力仪“雪龙”号测试结果  

Test Results of CHZ-Ⅱ Marine Gravimeter on Xuelong

作　　者：郎骏健 梁星辉 石志敏 周志博 刘雷钧 高金耀 柳林涛 LANG Junjian;LIANG Xinghui;SHI Zhimin;ZHOU Zhibo;LIU Leijun;GAO Jinyao;LIU Lintao(State Key Laboratory of Geodesy and Earth’s Dynamics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430077;National Time Service Center,Chinese Academy of Sciences,Xi’an 710600;The Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012;Key Laboratory of Marine Environment Exploration and Application,Ministry of Natural Resources,Guangzhou 510300)

机构地区：[1]中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室,武汉430077 [2]中国科学院国家授时中心,西安710600 [3]自然资源部第二海洋研究所,杭州310012 [4]自然资源部海洋环境探测与应用重点实验室,广州510300

出　　处：《导航与控制》2024年第5期108-113,94,共7页Navigation and Control

基　　金：国家重大科学仪器开发专项(编号:2011YQ120045);国家重点研发计划(编号:2023YFC2907004)。

摘　　要：海洋重力仪是当前获取高精度、高分辨率海洋重力场信息的一种重要仪器,当前主要的海洋重力仪仍然依赖于进口。CHZ-Ⅱ作为自主研制的海洋重力仪,经历了多次海面船载测试效果良好。首先介绍CHZ-Ⅱ海洋重力仪的结构组成和技术特点,然后介绍搭载“雪龙”号科考船的测试结果,统计了航次三个格网交叉点不符值的内符合精度,格网1的精度为0.73 mGal,格网2的精度为1.63 mGal,格网3的精度为0.54 mGal,与Sandwell V32卫星测高模型重力异常在整体变化趋势上一致。此次“雪龙号”南极测试表明,仪器在精度和稳定性上达到与国内外同类仪器并跑水平,可替代当前进口的海洋重力仪。The marine gravimeter is currently an important instrument for obtaining high-precision and high-resolution ocean gravity field information.The main marine gravimeters still rely on imports.As a self-developed marine gravimeter,CHZ-Ⅱ has undergone multiple shipborne tests on the sea surface and achieved good results.Firstly,the structural composition and technical characteristics of the CHZ-Ⅱ marine gravimeter are introduced.Then,the test results carried by the Xuelong scientific research ship are introduced.The internal consistency accuracy of three grid intersection points for the voyage are calculated,the accuracy of grid 1 is 0.73 mGal,the accuracy of grid 2 is 1.63 mGal,and the accuracy of grid 3 is 0.54 mGal,which are consistent with the overall trend of gravity anomalies in the Sandwell V32 satellite altimetry model.The Antarctic test of the Xuelong shows that the instrument has reached the same level of accuracy and stability as similar instruments at home and abroad,and can replace the current imported ocean gravimeters.

关 键 词：CHZ-Ⅱ海洋重力仪 零长弹簧 海洋重力测量 内符合精度 

分 类 号：P229[天文地球—大地测量学与测量工程]