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《长春地质学院学报》 1995-04
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THEORETICAL RESEARCH ON THE EDDY GEOPHONE

Wang Baochang;Dong Lianzhi;Dong Shixue(changchun Univ.of Earth Sciences,Changchun 130026)  
The aim of this paper is to correct some mistaks in the theory of eddycurrent geophone,then enriches its contents and provides a right theoretical basis in orderto manufacture a new type of geophone. Firstly,it gives correct formulas for the nature of eddy current geophone′s frequencyresponse under electric pressure,damping coefficient and phase,by means ofmathematical reckoning.Secondly,it definites some physical gualities that show somebasic characters of geophone. Thirdly,it discusses some serious mistakes appeared in thethesis of Mr.E.M.Hall. Fourthly,it gives a brief introduction to some characteristics of the newest type ofgeophone being researched by us.
【CateGory Index】: P315.62
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