Testing opaque workpieces, particularly tiny or thin elongated o

Details Testing opaque workpieces, particularly tiny or thin elongated o Testing opaque workpieces, particularly tiny or thin elongated o

1977-03-29

1979-10-16

Corbin, John K.

Optics: measuring and testing

By configuration comparison

With photosensitive film or plate

356237, 356372, G01B 1100

Patent

active

041711610

ABSTRACT:
A light source, preferably an electrical flash tube, generates a beam of light which, preferably, is collimated to provide a parallel beam output. The workpieces are placed in the beam of light to generate a shadow image. The shadow image and surrounding beam portions are projected on a screen, with intervening optical enlargement, on which photoelectric sensors are located positioned in the projected shadow image and preferably also in adjacent regions of the light beam, the outputs from the sensors being compared with each other, or with a reference, to determine relative shadow image characteristics of regions of the objects in the light beam path, the output signals being a measure of differences in characteristics, and hence determinative of orientation, size, or integrity of the workpiece material. To test for size or orientation, two sensors are located at the end portions of the shadow images of pins, or bolts, carried through a test path interposed between the parallel beams from the light source, before enlargement.

REFERENCES:
patent: 3604940 (1971-09-01), Matthews
patent: 3830572 (1974-08-01), Lueck
patent: 3900738 (1975-08-01), McKay
patent: 3901606 (1975-08-01), Watanabe et al.
patent: 3922094 (1975-11-01), Colding
patent: 3989386 (1976-11-01), Smith
patent: 3992107 (1976-11-01), Loy

Affiliated with

Also associated with

Rating

Testing opaque workpieces, particularly tiny or thin elongated o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Testing opaque workpieces, particularly tiny or thin elongated o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing opaque workpieces, particularly tiny or thin elongated o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-803446