The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 1984
Filed:
Jan. 08, 1982
Applicant:
Inventor:
Peter J Urbanik, Wethersfield, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ; 2502 / ; 3403 / ;
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.