High accuracy optical shaft encoder system

Details High accuracy optical shaft encoder system High accuracy optical shaft encoder system

1978-10-27

1980-09-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

318640, G01D 534

Patent

active

042245150

ABSTRACT:
An optical shaft encoder system for measuring electrically powered motor shaft speed, including a system for increasing the sinosoidal encoder output waveforms by a multiplication factor, converting the product of the multiplied waveforms to square waves, comparing the waveforms to a reference waveform and generating a correction signal which is fed back to the motor through servo circuitry, thereby correcting errors in motor shaft rotational speed.

REFERENCES:
patent: 3706048 (1972-12-01), Johnston

Affiliated with

Also associated with

Rating

High accuracy optical shaft encoder 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 High accuracy optical shaft encoder system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High accuracy optical shaft encoder system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-646136