System for measuring and recording three dimensional configurati

Recorders – Combined with external recorder operating means – Well logging

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Details

346 29, 33 20D, 356 2, 356120, 364564, G01D 900, B43L 1316, G01C 1112, G01B 1130

Patent

active

040514838

ABSTRACT:
An encoder for converting a distance to an electric signal is connected with a computer to put a distance signal into the computer. Th encoder is put on a moire pattern obtained by interference between a standard grating and a deformed image of the standard grating deformed by the surface of a three dimensional object. The distance between moire fringes is put into the computer. The computer is supplied with a signal indicting whether the surface is convex or concave. The depth or height of a point on the moire pattern is calculated by the computer, and a contour of the three dimensional object is obtained. An X-Y recorder is connected with the computer to draw the contour of the object.

REFERENCES:
patent: 2759814 (1956-08-01), Kegelas
patent: 2896501 (1959-07-01), Stamps
patent: 2910910 (1959-11-01), Rosenfeld et al.
patent: 3614237 (1971-10-01), Kyle et al.
patent: 3614410 (1971-10-01), Bailey et al.
patent: 3866052 (1975-02-01), Di Matteo et al.

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