FG5/232绝对重力仪的试验观测结果
|
摘要
介绍了新引进的FG5/232绝对重力仪的技术特点、工作原理和试验观测结果。试验表明:FG5/232绝对重力仪测量结果的标准偏差小于±2×10-8ms-2,能够满足地震监测的高精度重力测量要求;该仪器在进行绝对重力测量时,一般情况下设置13～15组的连续观测,每组测量时落体的下落次数以100次为宜。
The technical characters,the basic principle and the experimental observation of FG5/232 absolute gravimeter are introduced.The results indicate that the standard deviation is under ±2×10-8ms-2,satisfying the requirement for high precision measurement in earthquake monitoring.It is suggested that the reasonable set number and set drop number are about 13-15 and 100 respectively in general.
The technical characters,the basic principle and the experimental observation of FG5/232 absolute gravimeter are introduced.The results indicate that the standard deviation is under ±2×10-8ms-2,satisfying the requirement for high precision measurement in earthquake monitoring.It is suggested that the reasonable set number and set drop number are about 13-15 and 100 respectively in general.
引文
1Groten E and Becker M.Methods and experience of highprecision gravimetry as a tool for crustal movement detection[J].Geodynamics,1995,19(2):141-157.
2王勇、张为民.高精度绝对重力测量在地壳垂直运动研究中的作用和应用前景[J].地壳形变与地震,1997,17(3):98～102.2Wang Yong and Zhang Weimin.The application and Its fu-ture of absolute gravity surveying in the study of crustal verti-cal movement[J].Crustal Deformation and Earthquake,1997,17(3):98-102.(in Chinese)
3孙文科.低轨道人造卫星(CHAMP、GRACE、GOCE)与高精度地球重力场-卫星大地测量的最新发展及其对地球科学的重大影响[J]大地测量与地球动力学,2002,22(1):92～100.3Sun Wenke.Satellite in low obiit(CHAMP,GRACE,GOCE)and high precision earth gravity field:the latest pro-gress of satellite geodesy and its great infiuence on geosci-ence[J].Journal of Geodesy and Geodynamics,2002,22(1):92-100.(in Chinese)
4Micro-g LaCoste.FG5absolute gravimeter,user’s manual[M].Colorado,USA,2006.
5刘冬至.绝对与相对重力同步比测中的拉科斯特重力仪标定[J].地壳形变与地震,1998,18(1):88～94.5Liu Dongzhi.Calibration for LCR-gravimeter by absoluteand relative gravimetric connection data[J].Crustal Deform-ation and Earthquake,1998,18(1):88-94.(in Chinese)
6Micro-g LaCoste.G6absolute gravity data acquisition andprocessing,user’s manual[M].Colorado,USA,2006.
7王庆宾,吴晓平.绝对重力测量值的改正[J].测绘学院学报,2001,18(3):160～163.7Wang Qingbin and Wu Xiaoping.The correction for absolutegravity measurement[J].Journal of Institute of Surveyingand Mapping,2001,18(3):160-163.(in Chinese)
8Torge W,Roder R H,Schnull M,et al.High precisioncontrol network in Yunnan/China1990[J].BGI Bull.In-formation,1990.67:118-127.
9王勇,许厚泽,张为民,陶国强.1996年中国中西部地区高精度绝对重力观测结果[J].地球物理学报,1998,41(6):818～825.9Wang Yong,Xu Houze,Zhang Weimin,et al.Observation re-sults of high precision absolute gravity in central and westernChina in1996[J].Chinese Journal of Geophysicas,1998,41(6):818-825.(in Chinese)
2王勇、张为民.高精度绝对重力测量在地壳垂直运动研究中的作用和应用前景[J].地壳形变与地震,1997,17(3):98～102.2Wang Yong and Zhang Weimin.The application and Its fu-ture of absolute gravity surveying in the study of crustal verti-cal movement[J].Crustal Deformation and Earthquake,1997,17(3):98-102.(in Chinese)
3孙文科.低轨道人造卫星(CHAMP、GRACE、GOCE)与高精度地球重力场-卫星大地测量的最新发展及其对地球科学的重大影响[J]大地测量与地球动力学,2002,22(1):92～100.3Sun Wenke.Satellite in low obiit(CHAMP,GRACE,GOCE)and high precision earth gravity field:the latest pro-gress of satellite geodesy and its great infiuence on geosci-ence[J].Journal of Geodesy and Geodynamics,2002,22(1):92-100.(in Chinese)
4Micro-g LaCoste.FG5absolute gravimeter,user’s manual[M].Colorado,USA,2006.
5刘冬至.绝对与相对重力同步比测中的拉科斯特重力仪标定[J].地壳形变与地震,1998,18(1):88～94.5Liu Dongzhi.Calibration for LCR-gravimeter by absoluteand relative gravimetric connection data[J].Crustal Deform-ation and Earthquake,1998,18(1):88-94.(in Chinese)
6Micro-g LaCoste.G6absolute gravity data acquisition andprocessing,user’s manual[M].Colorado,USA,2006.
7王庆宾,吴晓平.绝对重力测量值的改正[J].测绘学院学报,2001,18(3):160～163.7Wang Qingbin and Wu Xiaoping.The correction for absolutegravity measurement[J].Journal of Institute of Surveyingand Mapping,2001,18(3):160-163.(in Chinese)
8Torge W,Roder R H,Schnull M,et al.High precisioncontrol network in Yunnan/China1990[J].BGI Bull.In-formation,1990.67:118-127.
9王勇,许厚泽,张为民,陶国强.1996年中国中西部地区高精度绝对重力观测结果[J].地球物理学报,1998,41(6):818～825.9Wang Yong,Xu Houze,Zhang Weimin,et al.Observation re-sults of high precision absolute gravity in central and westernChina in1996[J].Chinese Journal of Geophysicas,1998,41(6):818-825.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心