DESIGN OF CALIBRATION DEVICE FOR VP VERTICAL PENDULUM TILTMETER
Ma Wugang 1,2) ; Lu Haiyan 3) ;Hu Guoqing 1,2) ; and Wu Yanxia 1,2)
1)Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA, Wuhan 430071;2)Wuhan Base of Institute of Crustal Dynamics,CEA,Wuhan 430071;3)China Earthquake Networks Center,Beijing 100045
Abstract：VP Vertical Pendulum Tiltmeter is a new seismological observation instrument used in recording earth tides. A new calibration platform based on the PZT made in German is designed. The platform meets the design requirements that the accuracy is up to 10 nm.
