Research on velocity and acceleration geophones and their acquired information*
Liu Zhen-Dong1, Lu Qing-Tian1,2,Dong Shi-Xue2, and Chen Ming-Chun3
1. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China.
2. College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China.
3. Yunnan Geophysical Prospecting Company, SINOPEC, Kunming 650233, China.
Abstract：
Based on the research of two geophone types (10 Hz moving-coil velocity and piezoelectric acceleration) and their velocity and acceleration parameters, frequency response functions have been determined, as well as the differences between them. Also, shockvibration tests have been accomplished, not only to explain the two shock response signal differences, but also to analyze the response signal characteristics and its ability to carry information. In addition, seismic data acquisition experiments have been carried out under comparable conditions in the field. A contrast analysis of shot gathers and stack profiles acquired with the two geophone types is given in this paper. The results show that the acceleration signal from the acceleration geophone has a better advantage in terms of high signal-to-noise ratio, high accuracy, high resolution, and quantity of information to better meet current and future requirements for seismic exploration.
LIU Zhen-Dong,吕Qing-Tian ,DONG Shi-Xue et al. Research on velocity and acceleration geophones and their acquired information*[J]. APPLIED GEOPHYSICS, 2012, 9(2): 149-158.
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2012, Vol. 9 
