On the basis of magnetic-electric geophone's characters, we design a new magnetic annulus style geophone, which can get a well-disposed wider magnetic field to make a great effect.
从研究磁电式检波器的特性出发，拓宽地震检波器的研究思路，研究了一种新型的磁环式地震检波器。
2
The shot is located in some distance from well and the geophone is positioned inside the well to receive the seismic wave, the method is called VSP which belongs to 2d data acquisition.