Method for enlarging moving-coil geophone magnetostatic field and a moving-coil geophone
A geophone and moving coil technology, which is applied in the field of geophysical exploration construction equipment, can solve the problems of small typical value and no obvious improvement, and achieve the effects of prolonging life, simple structure and improving performance
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[0012] Referring to accompanying drawing 1, the present invention --- a kind of method that increases the static magnetic field of moving coil type geophone is that the space of magnetic steel 5 cylinder surface between upper and lower magnetic shoes 4,6 of moving coil type geophone is carried out with enameled wire The coil plane is wound to form a helical coil 2, and the original seismic signal transmission wire is used to supply a direct current to the helical coil 2, and the helical coil 2 generates a magnetic field consistent with the magnetic field direction of the magnetic steel 5 and superimposes on it, thereby improving the The magnetic field strength of the static magnetic circuit inside the geophone.
[0013] The present invention --- a moving coil detector includes a coil frame 7, upper and lower signal coil windings 1, 3, magnetic steel 5, upper and lower magnetic shoes 4, 6 and a plane wound spiral coil winding 2, wherein the plane wound The helical coil 2 is con...
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