Optical position sensor including a specially designed encoder p

Details Optical position sensor including a specially designed encoder p Optical position sensor including a specially designed encoder p

1982-01-08

1984-04-10

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

250231SE, 340347M, H03K 1302

Patent

active

044424230

ABSTRACT:
An optical position sensor for monitoring displacements of a movable body is disclosed. The sensor includes a light source transmitter, a light sensing receiver, a digital switching device, and a special encoder plate attached to a movable body. The encoder plate has rows of apertures which are constructed to modulate the light signal transmitted between the transmitter and receiver as a function of plate position to provide a symmetrical digital output signal when the switching device is triggered at a preset practical minimum threshhold level. Fiber optics are particularly suitable for use in constructing such an optical position sensor.

REFERENCES:
patent: 4275965 (1981-06-01), Snitzer et al.

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