The flow rate provided by hydraulic system is one of the key factors for seismic vibrators to complete sweeping.When the hydraulic system oil is insufficient,the Mass cannot move correctly according to the require-ments of the signal,resulting in distortion.In this paper,the distortion problem of the low frequency band of the seismicvibrator of a fault is analyzed.Through the method of theoretical calculation and single frequency test,it is found that the reason of the distortion is caused by the blockage of the oil channel inside the mass,and the fault is removed by re-installing the piston sleeve of the mass.
flowseismicvibratorlow frequencydistortionsingle frequency test