Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent
1978-10-23
1980-02-19
Buczinski, S. C.
Optics: measuring and testing
Angle measuring or angular axial alignment
With photodetection remote from measured angle
350 25, 350285, 356150, G01B 1126
Patent
active
041892348
ABSTRACT:
Apparatus for indicating the instantaneous angular deflection of an object about a selected axis without mechanical contact with the object. Light from a light source is transmitted through a first flat refractor to a converging lens which focuses the light through a second flat refractor onto a differential photocell. The first flat refractor is attached to the object such that when the object is deflected about the selected axis the refractor is also deflected about that axis. The two flat refractors are identical and they are placed an equal distance from the converging lens as are the light source and the photocell. The output of the photocell which is a function of image displacement is fed to a high gain amplifier that drives a galvanometer which rotates the second flat refractor. The second refractor is rotated so that the image displacement is very nearly zero making the galvanometer current a measure of the deflection of the object about the selected axis.
REFERENCES:
patent: 2998746 (1961-09-01), Gievers
patent: 3251261 (1966-05-01), Lillestrand
patent: 3270612 (1966-09-01), Collyer
patent: 3336832 (1967-08-01), Snavely
patent: 3409781 (1968-11-01), Immarco et al.
patent: 3470377 (1969-09-01), Le Febre et al.
patent: 3601613 (1971-08-01), Hock
patent: 3904295 (1975-09-01), Hock et al.
patent: 4090774 (1978-05-01), Zeifang
Buczinski S. C.
King William H.
Manning John R.
Osborn Howard J.
The United States of America as represented by the Administrator
LandOfFree
Noncontacting method for measuring angular deflection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Noncontacting method for measuring angular deflection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noncontacting method for measuring angular deflection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-651242