Method of monitoring motion

Details Method of monitoring motion Method of monitoring motion

1977-09-01

1982-06-15

Corbin, John K.

Optics: measuring and testing

By particle light scattering

With photocell detection

73657, G01B 902

Patent

active

043347770

ABSTRACT:
Methods and apparatus are disclosed for studying motion of an object or element, to determine not only quantities of motion but also direction of motion. A laser beam or the like is circularly polarized and directed to two or more retroreflectors and then to a detector. Beams of different frequencies are established and determination of relative direction of motion of the retroreflectors is made from the increase or decrease of frequency of beats of one beam against the other. In one embodiment, left and right circularly polarized light is reflected, and one of the beams is frequency-shifted. The light, being circularly polarized, is insensitive to rotational orientation of the test object, while maintaining directional and motion information.

REFERENCES:
patent: 3782176 (1974-01-01), Jacobs

Affiliated with

Also associated with

Rating

Method of monitoring motion 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 monitoring motion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of monitoring motion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1916760