| 地壳应变的激光干涉调制法测量 |
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| 引用本文： | 罗俊,范淑华,蔡惟鑫. 地壳应变的激光干涉调制法测量[J]. 大地测量与地球动力学, 1994, 0(2) |
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| 作者姓名： | 罗俊 范淑华 蔡惟鑫 |
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| 作者单位： | 华中理工大学引力实验中心，国家地震局地震研究所 |
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| 摘 要： | 采用高灵敏度的测量手段监测地壳应变，对地震、滑坡等自然灾害的早期预报具有重要意义。若采用激光干涉并结合图象调制和相位检测技术，可使地壳应变的测量灵敏度，较之传统石英伸缩仪高出若干个数量级。
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| 关 键 词： | 地壳应变，激光干涉仪，图象调制，相位检测 |
MEASUREMENT OF CRUSTAL STRAIN BY LASER INTERFEROMETER WITH PATTERN MODULATION |
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| Luo Jun and Fan Shuhua. MEASUREMENT OF CRUSTAL STRAIN BY LASER INTERFEROMETER WITH PATTERN MODULATION[J]. Journal of Geodesy and Geodynamics, 1994, 0(2) |
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| Authors: | Luo Jun and Fan Shuhua |
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| Abstract: | Precise measurement of crustal deformation with a highly sensitive technique is significant for the early prediction of earthquakes and landslips.Laser interferometer which combines techniques of pattern modulation with phase detection has higher sensitivity than the traditional quartz expand-meter has in several orders for the measurement of crustal strain. So it is useful for the early prediction of earthquakes and landslips. |
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| Keywords: | crustal strain laser interferometer modulation of pattern phase detection |
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