Non-contacting revolving speed detecting apparatus

Details Non-contacting revolving speed detecting apparatus Non-contacting revolving speed detecting apparatus

1988-04-26

1990-11-06

Willis, Davis L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

25023114, G01B 902

Patent

active

049681451

ABSTRACT:
A non-contacting revolving speed detecting apparatus for detecting the speed of rotation of a rotary body includes a diffraction plate that may be attached to the surface of the rotary body, a light source for radiating monochromatic laser light onto the diffraction plate, a light detector for detecting an output diffraction pattern of reflected and diffracted light from the diffraction plate, and circuitry for processing an output signal from the light detector means to detect and display the speed of rotation of the rotary body in either a digital or an analog manner.

REFERENCES:
patent: 3836257 (1974-09-01), Matsumoto
patent: 4528448 (1985-07-01), Doggett
patent: 4551017 (1985-11-01), Mannava et al.

Affiliated with

Also associated with

Rating

Non-contacting revolving speed detecting 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-contacting revolving speed detecting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-contacting revolving speed detecting apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1303797