Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1981-06-10
1984-08-21
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356237, G01N 2188
Patent
active
044672144
ABSTRACT:
A method and apparatus for detecting external defects of a circular sealing member by means of irradiation of detecting rays. A laser detecting ray for scanning is irradiated to a surface of the circular member which is rotated at the detecting section, and reflected light from the surface is received to be converted into electric signals so that the surface defects can be optically inspected. In case there is a defective surface, an irregularly reflected light can be received and based on an extracted signal a defective surface can be easily discriminated from the normal surface. The circular member is delivered one after another to the detecting section wherein discrimination is automatically made whether the circular member is non-defective or defective by means of rotation, irradiation of detecting rays and defect detecting action.
REFERENCES:
patent: 3340400 (1967-09-01), Quittner
patent: 4066363 (1978-01-01), Juvinall
patent: 4136779 (1979-01-01), Bieringer
patent: 4160913 (1979-07-01), Brenholdt
Ito Hiroshi
Kai Tooru
Kuno Hiroshi
Brophy J.
Kabushiki Kaisha Toyota Chuo Kenkyusho
Nelms David C.
Toyoda Gosei Co,., Ltd.
LandOfFree
Method of and apparatus for detecting external defects of a circ 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 of and apparatus for detecting external defects of a circ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for detecting external defects of a circ will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1937837