| GWR超导重力仪潮汐观测标定因子的精密测定 |
| |
| 引用本文： | 孙和平,陈晓东,许厚泽,王勇.GWR超导重力仪潮汐观测标定因子的精密测定[J].地震学报,2001,24(6):651-658. |
| |
| 作者姓名： | 孙和平 陈晓东 许厚泽 王勇 |
| |
| 作者单位： | （中国武汉430077中国科学院测量与地球物理研究所动力大地测量学开放实验室） |
| |
| 基金项目： | 国家杰出科学青年基金 (4 992 54 11)，国家自然科学基金 (4 9774 2 2 3 )，中国科学院知识创新项目 (KZ952 - J1- 411，KZCX2 - 10 6 )联合资肋 |
| |
| 摘 要： | 超导重力仪被普遍认为是迄今为止观测精度高、连续性和稳定性最好的相对重力仪，但是在获得真实重力场变化之前，必须利用格值（标定因子）对这类仪器的直接输出量（电压变化）进行标定．研究表明，格值的准确度将影响到观测数据的后续分析和资料的解释，本文利用两期（每期３天）FG５绝对重力仪在武汉国际重力潮汐基准站上的同址测量资料和该台站已知潮汐参数，详细研究了超导重力仪标定因子及其精度．
|
| 关 键 词： | 超导重力仪 绝对重力仪 潮汐观测 标定因子 精度分析 |
| 文章编号： | 0253-3782(2001)06-0651-08 |
| 修稿时间： | 2001年4月2日 |
ACCURATE DETERMINATION OF CALIBRATION FACTOR FOR TIDAL GRAVITY OBSERVATION OF A GWR SUPERCONDUCTING GRAVIMETER |
| |
| Sun Heping,Chen Xiaodong,Hsu Houtze,Wang Yong.ACCURATE DETERMINATION OF CALIBRATION FACTOR FOR TIDAL GRAVITY OBSERVATION OF A GWR SUPERCONDUCTING GRAVIMETER[J].Acta Seismologica Sinica,2001,24(6):651-658. |
| |
| Authors: | Sun Heping Chen Xiaodong Hsu Houtze Wang Yong |
| |
| Abstract: | It is recognized widely nowadays that the superconducting gravimeter (SG) is a kind of best relative gravimeter with high observing precision, good continuity and stability. However, it is necessary to calibrate the direct output (change in voltage) by using scale value (calibration factor) before getting the change of the real gravity field. Studies show that the accuracy of the scale value will influence the late analysis and explanation of the observations. By using absolute gravity measurements of a FG5 absolute gravimeter (AG) at Wuhan international tidal gravity fundamental station (two campaigns each for 3 days) and by using known tidal parameters at the same station, the calibration factors of the SG and their precision are studied in detail in this paper. |
| |
| Keywords: | superconducting gravimeter absolute gravimeter tidal observation calibration factor precision analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地震学报》浏览原始摘要信息 |
| 点击此处可从《地震学报》下载免费的PDF全文 |
