Optical shaft torsional displacement and speed sensing system

Details Optical shaft torsional displacement and speed sensing system Optical shaft torsional displacement and speed sensing system

1988-02-26

1989-09-05

Willis, Davis L.

Optics: measuring and testing

By polarized light examination

250225, G01J 400

Patent

active

048632740

ABSTRACT:
A rotating shaft torsional displacement and speed detector provides a light beam which impinges on one or both ends of the rotating shaft. Different combinations of beam altering materials such as reflecting and non-reflecting surfaces, wave retarding plates, and linear polarizers are attached to the front shaft end and rear shaft end. These beam altering materials change either the polarization or magnitude of the light beam in a predictable manner that allows for the detection of shaft speed and torsional displacement of the front shaft end with respect to the rear shaft end.

REFERENCES:
patent: 2313923 (1943-03-01), Chubb
patent: 2586540 (1952-02-01), Holden
patent: 3474255 (1969-10-01), White
patent: 3584959 (1971-06-01), Del Carlo et al.
patent: 3604811 (1971-09-01), McMenamin
patent: 3707329 (1972-12-01), Jaecklin et al.
patent: 3938890 (1976-02-01), Flavell
patent: 4334777 (1982-06-01), Bien et al.
patent: 4602515 (1986-07-01), Eichenlaub

Affiliated with

Also associated with

Rating

Optical shaft torsional displacement and speed sensing system 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 shaft torsional displacement and speed sensing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical shaft torsional displacement and speed sensing system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-239147