The Effect of Geophone Specifications on Vector Fidelity

P179 The Effect Of Geophone Specifications On Vector Fidelity Summary 1 A theoretical model was developed to quantify the intrinsic vector fidelity of a geophone. Results from the model were compared with actual test data which was acquired on a low distortion shake-table. A special test fixture was designed containing 30 conventional geophones: 24 geophones positioned horizontally at 30 degree azimuthal increments and 6 geophones oriented vertically. This Multi Azimuth Test Jig (MATJ) was then positioned on a horizontal low distortion shaketable in various rotated and tilted positions. The response of all of the geophones to a swept sine wave