Analog triangular wave output encoder

Details Analog triangular wave output encoder Analog triangular wave output encoder

1987-05-19

1989-01-03

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237G, G01D 534

Patent

active

047959010

ABSTRACT:
An analog triangular wave output encoder capable of producing a continuous triangular wave output is disclosed. The encoder has a rotary disk attached to a rotary shaft mounted for rotation relative to a base block, a light emittimg element on one side of the rotary disk and facing it, a fixed slit plate on the other side of the rotary disk and having a fixed slit part, a light receiving element facing the fixed slit plate, a series of first slits formed in the fixed slit part for producing first output signals and a series of second slits formed in the fixed plate for producing second output signals. The first and the second slits are displaced 90.degree. in phase in the rotational direction of the rotary disk so that trapezoidal wave outputs produced from the slits with a phase shift of 90.degree. from each other are combined at the light receiving element into a continuous traingular output signal.

REFERENCES:
patent: 4621256 (1986-11-01), Rusk
patent: 4680466 (1987-07-01), Kuwahara et al.
patent: 4701615 (1987-10-01), Schmitt
patent: 4703309 (1987-10-01), Krohn

Affiliated with

Also associated with

Rating

Analog triangular wave output encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog triangular wave output encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog triangular wave output encoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2169788