Survey apparatus and method employing canted tilt sensor

Details Survey apparatus and method employing canted tilt sensor Survey apparatus and method employing canted tilt sensor

1981-04-30

1984-07-24

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

33312, 33313, 33366, G01C 1938, E21B 4024

Patent

active

044610882

ABSTRACT:
A borehole mapping and/or navigational instrument includes a carrier movable lengthwise in the borehole; structure on the carrier defining an axis of rotation; and a tilt sensitive device rotatable about the axis of rotation, that device having a tilt sensitive axis with components along the axis of rotation and along perpendiculars to that axis. One or more angular rate sensors may be provided to be rotatable about the axis of rotation.

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patent: 4265028 (1981-05-01), Van Steenwyk

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