Optical method for inspecting spherical parts

Details Optical method for inspecting spherical parts Optical method for inspecting spherical parts

1979-08-30

1981-03-31

Corbin, John K.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

G01N 2189

Patent

active

042590132

ABSTRACT:
Spherical parts such as ball bearings are inspected by rolling the parts down sizing rails so that they rotate rapidly with minimal translational motion at a point where they drop through the sizing rails. In a region of rapid rotation the part is inspected by an array of optical systems covering the entire area of the part. Each system focuses a small line of light on the part and in a direction slightly misaligned with the center of the part and the same optics focuses specularly reflected light from the part to a detection region where the light level is measured and a corresponding electrical signal is produced. When the line image scans over a defect, the resulting absorption or scattering of the light causes a rapid decrease in the light received at the measuring location so that a detectable change in the electrical signal occurs.

REFERENCES:
patent: 3430055 (1969-02-01), Metzger
patent: 3565568 (1971-02-01), Hock
Haehner, "Inspection System for Round Objects", Western Elec. Tech. Dig. No. 6, pp. 29-30, 4/1967.

Affiliated with

Also associated with

Rating

Optical method for inspecting spherical parts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical method for inspecting spherical parts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical method for inspecting spherical parts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2240492