Method and apparatus for measuring the movement of a spiral...

Details Method and apparatus for measuring the movement of a spiral... Method and apparatus for measuring the movement of a spiral...

G - Physics

01

C

340/102, 33/183

G01C 5/00 (2006.01)

Patent

CA 1169523

13376:CRH METHOD AND APPARATUS FOR MEASURING THE MOVEMENT OF A SPIRAL WOUND WIRE ROPE Abstract of the Disclosure In an apparatus for measuring equipment depth in a well, the movement of wire rope used to raise and lower the equipment is measured by proximity sensors located adjacent the wire rope and spaced along the direction of movement of the wire rope. The signals from the proximity sensors caused by the spiral windings of the wire rope are employed to determine the length and direction of movement of the wire rope. The invention may be employed to measure movement of wire rope in other applications, such as in elevators or with cages in mine shafts that are supported by wire rope.

381180

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