Angle sensor for a steerable boring tool

Details Angle sensor for a steerable boring tool Angle sensor for a steerable boring tool

1992-02-18

1992-12-29

Shoap, Allan N.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

33304, 33313, 364559, G01C 906

Patent

active

051740338

ABSTRACT:
A roll sensor is provided for determining the roll angle of a rotatable member. The roll sensor includes a plurality of elements arranged in a predetermined manner, each element having a first state and a second state. A controller controls the respective state of the plurality of elements. A detector detects an output of the elements which are in the first state. A liquid responsive to the rotation of the rotatable member causes the output of at least one of the elements in the first state detected by the detector to be different than the output of the remaining elements in the first state detected by the detector to determine the roll angle of the rotatable member.

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