DEVELOPMENT AND APPLICATION OF CCD TYPE BI-METAL
TUBE INSTRUMENT
1)Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071
2)Wuhan Base of Institute Crustal Dynamics, CEA, Wuhan 430071
3)Institute of Geophysics, CEA, Beijing 100081
Abstract:A photoelectric bimetal tube is developed successfully based on the principle of bimetal tube. This instrument is applied to the vertical displacement monitoring system of the Tingzikou hydropower dam. The results show that the instrument operation is stable and reliable, and monitoring effect is good.