发明授权
- 专利标题： Ring laser gravity gradiometer
- 专利标题（中）： 环激光重力梯度计
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申请号： US111420申请日： 1980-01-11
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公开(公告)号： US4255969A公开(公告)日： 1981-03-17
- 发明人: Theodore V. Lautzenhiser
- 申请人： Theodore V. Lautzenhiser
- 申请人地址： IL Chicago
- 专利权人： Standard Oil Company
- 当前专利权人： Standard Oil Company
- 当前专利权人地址： IL Chicago
- 主分类号： G01V7/10
- IPC分类号： G01V7/10 ; H01S3/00 ; H01S3/083 ; G01V7/04
摘要：
Gravity gradiometer including a ring laser cavity, two modulator elements in the path of the laser beam, and spaced masses attached to the modulator elements to provide a differential modulation of circular polarization modes proportional to the difference in gravity at the location of the two masses. In one form, a biasing element is added to shift the operating point of the laser system to improve performance.
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