Compound rotary encoder for detecting the rotation angle and the

Details Compound rotary encoder for detecting the rotation angle and the Compound rotary encoder for detecting the rotation angle and the

1989-06-01

1990-07-31

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25023116, 25023117, 25023118, 250237G, G01D 534

Patent

active

049452312

ABSTRACT:
In the compound rotary encoder of this invention, an absolute signal representing the upper m bits of a rotation angle signal, and an icreametal signal used for detecting the lower bits of the rotation angle signal are detected to obtain more detailed rotation angle information. Moreover, the rotation angle obtained by counting the increamental signal closely matches that obtained from the absolute signal, assuring the detection of the rotation angle with high resolution and precision. Since a rotating disk has only m bits of absolute code pattern, the rotary encoder can be small. This permits the absolute code pattern to have greater diametrical width so that a large output of the absolute signal can be stably obtained. On the other hand, the number of rotations can be obtained by counting and compensating a standard position signals. Since the rotary disk has the patterns both for detecting the standard position signal and for detecting the rotation angle, this too allows the rotary encoder to be small.

REFERENCES:
patent: 4358753 (1982-11-01), Cascini
patent: 4633224 (1986-12-01), Gipp et al.
patent: 4736187 (1988-04-01), Kibrick et al.

Affiliated with

Also associated with

Rating

Compound rotary encoder for detecting the rotation angle and the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compound rotary encoder for detecting the rotation angle and the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound rotary encoder for detecting the rotation angle and the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1399779