Seismic detection method and apparatus

Details Seismic detection method and apparatus Seismic detection method and apparatus

G - Physics

01

V

349/10

G01V 1/16 (2006.01) H03F 1/26 (2006.01) H03F 3/45 (2006.01)

Patent

CA 1237807

A B S T R A C T SEISMIC DETECTION METHOD AND APPARATUS Seismic detection apparatus in accordance with the invention comprises a seismic pick-up made of one or more geophones, a damping resistance, and an amplifier, wherein said damping resistance is essentially constituted by a resistance connected in series between the said pick-up and said amplifier. In a preferred embodiment, the damping resistance is made of two equal resistances, one of which is connected in series with the positive input of the amplifier while the other one is connected in series with the negative input of the amplifier. A seismic detection method in accordance with the invention in which the electrical signals generated by a pick- up made of one or more geophones connected in series are damped and the damped electrical signals are amplified, consists in making all of the current delivered by the pick-up participate in the amplification. (Figure 2).

471139

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