TESTING SENSITIVITY OF DEFORMATION INSTRUMENT WITH LASER INTERFEROMETER
Zhou Yunyao 1,2) ;Wu Tao 1,2) ; Wen Xingwei 1,2) ;Yang Jiang 1,2) ; Ma Wugang 1,2) ; Zhao Fenghua 1,2) ;and Li Zhengyuan 3)
1)Institute of Seismology, CEA, Wuhan 4300712)Crustal Movement Laboratory，Wuhan 4300713)China Earthquake Networks Center, Beijing 100045
Abstract The sensitivity test methods for different types of crustal deformation instruments are various. In addition, all the test results are untraceable. Therefore the accuracy and credibility of the observation results are affected. The sensitivity test methods for water tube tiltmeter, vertical pendulum tiltmeter and extensometer are discussed. Laser interferometry technology is introduced to improve the test accuracy. The test results are shown to be traceable to national measurement standards.
Key words ：
laser interferometry
deformation
water tube tiltmeter
extensometer
vertical pendulum tiltmeter
Received: 01 January 1900
Corresponding Authors:
Zhou Yunyao
Cite this article:
Zhou Yunyao,Wu Tao,Wen Xingwei et al. TESTING SENSITIVITY OF DEFORMATION INSTRUMENT WITH LASER INTERFEROMETER[J]. , 2010, 30(Supp.2): 132-135.
Zhou Yunyao,Wu Tao,Wen Xingwei et al. TESTING SENSITIVITY OF DEFORMATION INSTRUMENT WITH LASER INTERFEROMETER[J]. jgg, 2010, 30(Supp.2): 132-135.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/ISupp.2/132
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