Method and apparatus for detecting profile error of article surf

Details Method and apparatus for detecting profile error of article surf Method and apparatus for detecting profile error of article surf

1988-06-06

1990-03-20

McGraw, Vincent P.

Optics: measuring and testing

By particle light scattering

With photocell detection

356358, G01B 902

Patent

active

049105612

ABSTRACT:
An optical non-contact detection of profile errors of a surface or surfaces of an article, such as an industrial product is carried out by a coherent signal bea of light introduced along an imaginary plane and projected onto the surface of the article at a large angle of incidence. The signal beam of light is reflected from the surface toward the same imaginary plane and traveled past optical system toward a photosensitive material on which a separate reference beam of light is projected. A hologram of the surface is formed on the photosensitive material, which is used for an analysis of the profile errors of the surface.

REFERENCES:
patent: 3735036 (1973-05-01), Macovski
patent: 3837726 (1974-09-01), Suzuki et al.
patent: 4197010 (1980-04-01), Meyrueis et al.
patent: 4624568 (1986-11-01), Bartolomeo
patent: 4657396 (1987-04-01), Honda et al.

Affiliated with

Also associated with

Rating

Method and apparatus for detecting profile error of article surf does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for detecting profile error of article surf, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting profile error of article surf will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-795614