OPTICAL FIBER MAGNETOMETER
Assignee
NAVY, UNITED STATE OF AMERICAN AS RESPRESENTED BY THE SECRETARY OF THE
Filed
Apr 22, 1985
Granted
Aug 6, 1991
Location
COLUMBIA MD US
Abstract
An optical fiber magnetometer having omnidirectional capability is disclo herein for measuring a total magnetic field independent of its physical orientation or the direction of the field or fields. A relatively long optical fiber defining a sensing arm for exposure to a magnetic field is wound in the form of a spheroid (like rubber bands on a golf ball or yarn threads on a baseball) to provide optical path lengths of substantially the same total length in every direction through the spheroid winding. The plane of polarization of light transmitted through the optical fiber winding is caused to rotate (Faraday effect) when the fiber or components thereof is exposed parallel to a magnetic field. The extent of plane rotation is determined, inter alia, by the total magnetic field passing through the spheroid winding.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jul 2, 1986
Rescinded
Nov 8, 1990
Duration
4 years, 4 months
Inventor
- 1JOHN F. SCARZELLO
Record Details
- Patent number
- US 5038103
- Application
- 06725709
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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