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《Equipment for Geophysical Prospecting》 2012-01
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Testing and analysis methods for 428XL instrument clock frequency

Jiang Fuhao,Li Zhiying,Zi Douhong and Cao Xiaowei.  
There is no clock frequency detection item for years of digital seismic instruments.In recent years,seismic exploration requires increasingly high precision for data acquisition,processing and interpretation,then the test item of clock frequency seismic is brought out.428XL instrument user manual requires the LCI clock of instrument must be tested and corrected every year.At the same time,more and more seismic clients tend to request their contractors to follow the manual requirements.Because many Sercel users seldom did this test and never required to do this testing task.So they know little about the test.In this paper,two methods are introduced and analyzed referring to the directions from Sercel Company and the relevant clients.
【CateGory Index】: P631.43
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