Method and apparatus for measuring dimensional variables of thre

Details Method and apparatus for measuring dimensional variables of thre Method and apparatus for measuring dimensional variables of thre

1991-09-27

1994-03-01

Rosenberger, Richard A.

Optics: measuring and testing

By configuration comparison

With photosensitive film or plate

356386, G01B 1102, G01B 1110

Patent

active

052912728

ABSTRACT:
A non-contact method and apparatus for measuring dimensional variables of a threaded exterior surface of a length of pipe utilizes at least one laser generated parallel scanning light beam transmitter and at least one receiver which is disposed on a frame which moves with respect to the longitudinal axis of the pipe, to measure the amount of the scanning beam width which is blocked by the threaded exterior surface at a plurality of sequential locations along the longitudinal axis of the pipe, and the measured amounts are stored as a function of the sequential locations to produce a profile of the threaded exterior surface and to determine from the profile a desired dimensional variable of the threaded exterior surface.

REFERENCES:
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patent: 3905705 (1975-09-01), Petrohilas
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patent: 4743769 (1988-05-01), Schwaiger
patent: 4938599 (1990-07-01), Goszyk
"Profile 100 System" Brochure, Brown & Sharpe Mfg. Co.
"Laser Mike.RTM. Non Contact Gaging Systems" Brochure; Techmet Company.
"Positioning Tables" Brochure; Trilogy Systems Corp.
"Linear Motors & Controls" Brochure, Trilogy Systems, Corp.

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