THE AUTOMATIC BURRIS METAL ZERO-LENGTH SPRING GRAVITY METER
ZENG Hua-lin1, ZHAO Yu-gang2
1. Geo-detection Laboratory, Ministry of Education, School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China;
2. Beijing Orangelamp Navigation Technology Development Co., Ltd., Beijing 100085, China
美国零长弹簧公司(Zero-Length Spring Corporation)生产的贝尔雷斯(Burris)金属零长弹簧自动重力仪,是拉科斯特-隆贝格(LaCoste & Romberg)陆地重力仪的升级产品和重大改进。该仪器具有以下三大特色:先进的UltraGravTM控制系统、世界的测量范围、完全综合的整体设计。介绍了零长弹簧思想的提出及拉科斯特-隆贝格重力仪的生产过程。
This paper describes the automated Burris metal zero-length spring gravity meter produced by the Zero-Length Spring Corporation,USA,which is an upgrade of LaCoste & Romberg land meters. The new land gravity meter features the UltraGravTM control system, worldwide range with micro-Gal precision, and a fully integrated meter design. This paper also deals with the concept of the zero-length spring and the history of LaCoste & Romberg land meters.