Holographic arrangement for testing materials without destroying

Details Holographic arrangement for testing materials without destroying Holographic arrangement for testing materials without destroying

1974-03-11

1976-08-24

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

350 35, G01B 902

Patent

active

039763803

ABSTRACT:
A method and apparatus for nondestructive testing of articles by holography in which light beams from a virtual point source of laser light and from an observation point are reflected by a reflector toward the same point on the object being checked. The light beams when extended beyond the reflector intersect on an ellipsoid having the point source and the observation point as foci. A plate having a hologram of the article is interposed between the observation point and the reflector and flaws in the object being tested show up on the plate as interference lines when the object is modified in shape by a mass influence such as a temperature change, or a change in pressure thereon, or by vibrations.

REFERENCES:
patent: 3582176 (1971-06-01), Mathisen
patent: 3644047 (1972-02-01), Brown et al.
Abramson, N., "The Holo-Diagram IV . . . Hologram Interferometry;" Applied Optics vol. 10 No. 9 2155, 9/71.

Affiliated with

Also associated with

Rating

Holographic arrangement for testing materials without destroying does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Holographic arrangement for testing materials without destroying, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Holographic arrangement for testing materials without destroying will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-775208