Method and apparatus for measuring pipeline corrosion

Details Method and apparatus for measuring pipeline corrosion Method and apparatus for measuring pipeline corrosion

1993-04-16

1994-11-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250571, H01J 314

Patent

active

053629620

ABSTRACT:
An automatic corrosion measurement system and method enables rapid measurement and evaluation of corrosion on significant portions of straight and curved pipe sections and other surfaces from several square inches to several square feet, using a laser instrument which projects laser light across a scan area which includes corrosion, and detects reflected laser light therefrom. A positioning mechanism advances the laser instrument along the surface to permit evaluation of a large area, and a processor controls both the operation of the laser instrument and positioning mechanism. Automatic processing by the processor converts surface condition signals into readily usable output in the form of displays, printouts or maps, for immediate use.

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Nippon Steel Technical Report, "Development of System for Inspecting Buried Gas Pipelines for External Corrosion Thickness Loss", No. 44, Jan. 1990, pp. 43-49.
MVS Modular Vision Systems Inc., product literature, "LaserVision Sensor MVS-10 Specifications", 1US patent #4,859,829, Aug. 22, 1989.

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