Optics: measuring and testing – By configuration comparison – With photosensitive film or plate
Patent
1993-04-19
1994-03-01
Rosenberger, Richard A.
Optics: measuring and testing
By configuration comparison
With photosensitive film or plate
356386, 356387, 250560, G01B 1102, G01B 1110, G01N 2186
Patent
active
052912736
ABSTRACT:
A non-contact diameter measuring device measures the diameter of a stationary or rotating round object by measuring the difference in the angle of reflection of a light beam scanned along part of the circumference of the object. The scanning beam is repeatedly translated across the object and the angle of the reflected beam is detected at two locations using two angle-sensitive detector detects the position at which the scanning beam is retroreflected (i.e. pointing to the center of the object). The second detector is set at a fixed angle. The distance the beam has to translate across the object to generate the maximum output signal at the two angle sensitive detectors is inversely proportional to the diameter. The diameter is calculated from knowing this distance and the fixed angle between the two detectors. The main advantage of this method is that only a small part of the circumference is required to measure the diameter, thus a wide range of diameters can be covered by a single device.
REFERENCES:
patent: 3922094 (1975-11-01), Colding et al.
patent: 3977789 (1976-08-01), Hunter et al.
patent: 4227812 (1980-10-01), Pirlet
patent: 4748332 (1988-05-01), Kuhne et al.
patent: 4866642 (1989-09-01), Obrig et al.
patent: 4880991 (1989-11-01), Boehnlein et al.
patent: 4931658 (1990-06-01), Tole
patent: 5118954 (1992-06-01), Grosso
patent: 5175595 (1992-12-01), Fukase
Creo Products Inc.
Pham Hoa Q.
Rosenberger Richard A.
LandOfFree
Non-contact diameter measuring method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-contact diameter measuring method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-contact diameter measuring method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-582130