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:
Sep. 11, 1990
Filed:
Jul. 13, 1988
Michael L Henning, Somerset, GB;
Christopher Lamb, Dorset, GB;
Plessey Overseas Limited, Ilford, GB;
Abstract
An optical sensing system comprising single light source and a series of phase shifting switching devices positioned linearly aligned with the light source. Each phase shifting device is driven by a driving device with pulses at different frequencies and sequentially from the most proximately located phase switching device to the most distant phase switching device so that light eventually passes through each of the phase switching devices. Fiber sensor arrays are aligned with each of the phase switching devices and light reflected from the fiber sensor arrays is detected by a plurality of photodetector devices each associated with a fiber sensor array.