流动式相对重力仪的研制与应用  

Development and application of mobile relative gravimeter

作　　者：张寒 朱学毅[1] 缑小路 吴畏[1] 仇恺 高峰[1] Zhang Han;Zhu Xueyi;Gou Xiaolu;Wu Wei;Qiu Kai;Gao Feng(Tianjin Navigation Instrument Research Institute,Tianjin 300131,China)

机构地区：[1]天津航海仪器研究所,天津300131

出　　处：《地震科学进展》2024年第7期466-470,共5页Progress in Earthquake Sciences

基　　金：天津市军民融合科技重大专项(19ZXJRGX00030)资助。

摘　　要：地球重力场信息是进行地球物理研究的重要基础数据,对我国具有重要意义。作为陆上高精度重力测量的核心仪器,流动式相对重力仪因其技术门槛高,国内市场长期被国外产品所垄断。天津航海仪器研究所依托掌握的金属零长弹簧制备核心技术,成功研制出流动式相对重力仪,成为国内极少数掌握该项技术的单位,可全面满足包括陆上重力基线场在内的野外测量作业要求。由天津航海仪器研究所研制的流动式相对重力仪通过了国内最具权威用户组织中国地震局的入网测评,实测重复性标准差为3.1μGal,精度为3.5μGal,分辨力优于1μGal,整体性能达到国际先进水平。The information of Earth gravity field is an important basic data for geophysical research,and is of great significance to China.As a core equipment for land high precision measurement,mobile relative gravimeter’s technical threshold is high,and the domestic market has been monopolized by foreign products for a long time.Based on the core technology of metal zero-length spring preparation,Tianjin Navigation Instrument Research Institute has successfully developed mobile relative gravimeter,which has become one of the few units in China that have mastered this technology and can fully meet the requirements of field measurement operations,including the terrestrial gravity baseline field.Mobile relative gravimeter developed by Tianjin Navigation Instrument Research Institute passed equipment admittance testing of China Earthquake Administration,the most authoritative user organization in China.The measured repeatability standard deviation is 3.1μGal,the accuracy is 3.5μGal,and the resolution is better than 1μGal.Its performance reached the international advanced level.

关 键 词：相对重力仪 重力测量 零长弹簧 设备入网测试 

分 类 号：P315.62[天文地球—地震学]