Shaft encoder

Details Shaft encoder Shaft encoder

1977-04-04

1978-06-27

Hix, L. T.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

354 15, 250231SE, 250237G, G03B 1524, G01D 534

Patent

active

040978753

ABSTRACT:
A shaft encoder of negligible moment of inertia. A grating provides a grid pattern of transmitted light. A mirror on the shaft sweeps the pattern. A lens focuses the sweep over a mask of like grid pattern. A photocell is activated by light transmitted through the mask whenever there is a register of the grating image with the mask. By using a mask of N grid lines per unit of measure, and a mask of N plus 1, two cells will be able to detect direction of shaft rotation.

REFERENCES:
patent: 3912926 (1975-10-01), Coulbourn
patent: 4044363 (1977-08-01), Morgan

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2308518