| NIM-Ⅱ型可移激光绝对重力仪 |
| |
| 引用本文： | 郭有光,黄大伦,方永源,张光远,周景华,徐进义.NIM-Ⅱ型可移激光绝对重力仪[J].地球物理学报,1988,31(1):73. |
| |
| 作者姓名： | 郭有光 黄大伦 方永源 张光远 周景华 徐进义 |
| |
| 作者单位： | 中国计量科学研究院 北京 |
| |
| 摘 要： | 中国第二代可移激光绝对重力仪（NIM-Ⅱ型）的实验装置于1985年研制成功。本文详细论述了仪器的多位置法原理及仪器结构;具体分析说明了仪器的光学系统,电子精密测时系统,数据处理系统;研究了一种处理地面微震干扰的新方法。参加1985年在法国巴黎举行的第二次国际绝对重力仪比对结果表明,该装置的测量结果不确定度为1.4x10-7m/s2。国际比对后,仪器又做了进一步改进。经国内大面积测量应用的结果表明,该装置的不确定度可达1×10-7m/s2。
|
| 关 键 词： | 可移动绝对重力仪 自由下落角隅棱镜 多位置法 不确定度 |
| 收稿时间： | 1986-10-30 |
A TRANSPORTABLE LASER INTERFEROMETRY ABSOLUTE GRAVIMETER TYPE NIM-Ⅱ |
| |
| GUO YOU-GUANG HUANG DA-LUN FENG YONG-YUAN ZHANG GUANG-TUAN ZHOU,JING-HUA XU JIN-YIN.A TRANSPORTABLE LASER INTERFEROMETRY ABSOLUTE GRAVIMETER TYPE NIM-Ⅱ[J].Chinese Journal of Geophysics,1988,31(1):73. |
| |
| Authors: | GUO YOU-GUANG HUANG DA-LUN FENG YONG-YUAN ZHANG GUANG-TUAN ZHOU JING-HUA XU JIN-YIN |
| |
| Institution: | National Institute of Metrology, Beijing |
| |
| Abstract: | A model of the second generation Transportable laser interferometry absolute gravimeter has been developed in 1985 in China. This apparatus employs the simple free fall of a cube-corner prism. "g" is calculated in accordance with "multiple station" method. This paper describes the optical system for determining falling distance of the dropped object, the precies high-speed electronic counting system and an automatic data processing system. In order to reduce the effect of background disturbances we have developed a new method of data processing. We participated with the gravimeter NIM-Ⅱ in the Second International Absolute Gra-vimeter Comparsion at Severs At in 1985. The result of an international intercomparison of this absolute gaviments shows good agreement with the other instruments. After the second international intercomparison the gravimeter NIM-Ⅱ has been improved. The accuracy achieved is 1×10-7m/s2. |
| |
| Keywords: | Transportable absolute gravimeter Freely falling corner cube Multiple station method Accuracy |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
