Current impulse method and apparatus for testing geophone strings

摘要

A method and apparatus for testing geophones to measure the response of the geophones and associated circuits and obtain a signal that can be used to deconvolve recorded seismic data. The method comprises applying a constant voltage or current to the geophones, removing the voltage or current and measuring the geophone response. The second derivative of the response is the time equivalent of the velocity response of the geophone and can be used in deconvolving recorded seismic data.