Method and system for detecting defects in pipes or other struct

Details Method and system for detecting defects in pipes or other struct Method and system for detecting defects in pipes or other struct

1994-03-03

1996-01-23

Regan, Maura K.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324718, 324522, G01R 2714

Patent

active

054867673

ABSTRACT:
A method and system for rapidly connecting and rapidly disconnecting a large number of point contacts onto a pipe surface for detecting defects in pipe and other structures is taught. The method and system involve independently pressing a plurality of sharply pointed pin contacts onto the pipe surface by a means, such as a spring. The system comprises a plurality of electrodes each having a plurality of pins, as illustrated seventeen (17) pins, arranged in a pattern. Each of the plurality of pins is held in a conforming opening in the electrode and is urged by springs means, such as a coil spring, against the surface of the structures. Each of the plurality of pins (sixteen (16) current pins and one voltage pin) are individually connected to a power supply and sensing apparatus. This system and method has proved operable for detecting defects in structures, such as pipe.

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