Cylindrical container inner surface tester having compensation f

Details Cylindrical container inner surface tester having compensation f Cylindrical container inner surface tester having compensation f

1995-03-29

1997-08-26

Boudreau, Leo

Image analysis

Applications

Manufacturing or product inspection

348127, 250223B, 356240, G06K 900, G01N 904

Patent

active

056618190

ABSTRACT:
A corner area between the bottom and the side of a cylindrical container is set as a test area. An objective lens of a TV camera is mounted to form a predetermined angle with the central axis of the cylindrical container. An image is generated on the screen of an image processing device based on the image captured by the TV camera. One-dimensional position detection slits Ws1 through Ws3 normally cross the arc of the ring-shaped highlighted portion corresponding to the corner area at three points. The coordinates of the intersections P1 through P3 of the position detection slits and the highlighted portions are obtained. They are substituted in the circular equation to calculate the coordinate (.alpha., .beta.) of the center of the circle 0 having the intersections P1 through P3 on its circumference. The calculated coordinate is processed as a measured position coordinate to specify the position of the test cylindrical container so that the inner surface of the test cylindrical container can be precisely checked for a defect. Thus, the exact position of the test cylindrical container can be calculated, and the existence of a defect inside the test cylindrical container can be checked precisely.

REFERENCES:
patent: 5233199 (1993-08-01), Toyama
patent: 5338000 (1994-08-01), Toyoma
patent: 5412203 (1995-05-01), Toyama
patent: 5453612 (1995-09-01), Toyama et al.

Affiliated with

Also associated with

Rating

Cylindrical container inner surface tester having compensation f does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cylindrical container inner surface tester having compensation f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylindrical container inner surface tester having compensation f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1994068