Gimbal lock system for seismic sensors

Details Gimbal lock system for seismic sensors Gimbal lock system for seismic sensors

1998-07-22

2000-05-09

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

181122, G01V 116, H04R 900

Patent

active

060613025

ABSTRACT:
An apparatus and method for selectively locking the orientation of seismic data sensor capable of detecting data regarding a seismic event. A gimbal orients the sensor into a selected vertical orientation, and a switch operates a clutch to lock the sensor from further movement. A controller can identify a time interval correlating with a seismic event, and the controller operates the switch to lock the sensor before the seismic event begins. After the completion of the seismic event, the switch unlocks the sensor so that the gimbal can permit reorientation of the sensor. The locking mechanism eliminates noise associated with moving gimbal components and is suitable for land based and marine seismic operations.

REFERENCES:
patent: 4525819 (1985-07-01), Hefer
patent: 4701890 (1987-10-01), Ohmer et al.
patent: 4893290 (1990-01-01), McNeel et al.

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