Research/Patents/US 5475216
US 5475216Tier 2 — Research Body

PASSIVE FIBER OPTIC PLURAL SECTION SENSOR HAVING MANDREL WOUND REFERENCE AND SENSING ARMS

Assignee

Litton Systems

Filed as: LITTON SYSTEMS, INC., A CORP. OF DE

Filed

May 22, 1990

Granted

Dec 12, 1995

Location

TARZANA CA US

Abstract

A fiber optic sensor is formed by providing a first mandrel section having a first longitudinal slot therein, placing a reference fiber within the slot and winding a sensing fiber around the first mandrel. The sensor includes a second mandrel section having a second longitudinal slot therein and a spacer between the first and second mandrel sections. The sensing fiber and the reference fibers are wound around the spacer, and then the reference fiber is placed in the second longitudinal slot. The sensing fiber is wound around the second mandrel section. The sensor may include additional mandrels and spacers to form additional sections. A plurality of sensing coils may be formed on each mandrel section.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 27, 1991

Rescinded

May 17, 1993

Duration

2 years, 1 month

Inventor

  • 1BRUCE A. DANVER

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records