Title:
SENSING FIBER STRUCTURE FOR OPTICAL FIBER GYROSCOPE
Document Type and Number:
Japanese Patent JP3293910
Kind Code:
B2
Abstract:
PURPOSE: To prevent the instability of a polarization plane caused by the effect of the magnetic field or temperature and reduce an output drift by applying pressure from the outside of a sensing fiber with a belt member.
CONSTITUTION: A belt member 3 is provided on the outer periphery of a sensing fiber 2. The belt member 3 is formed with a thin plate into an ohmic shape, and both ends are bound with binding screws 4. The pressure from the outside of the sensing fiber 2 can be freely adjusted by the fastening degree of the binding screws 4. When pressure is applied to the outer periphery of the sensing fiber 2 via the belt member 3, the polarization plane is preserved by the same action as that of a polarization plane preserving fiber, the light traveling in both directions interferes with each other, the output drift caused by the rotation of the polarization plane is prevented, and a high-precision optical fiber gyroscope is obtained.
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Inventors:
Michihiko Mimura
Application Number:
JP32440892A
Publication Date:
June 17, 2002
Filing Date:
December 03, 1992
Export Citation:
Assignee:
Tamagawa Seiki Co., Ltd.
International Classes:
G02B6/00; G01C19/72; G02B6/024; (IPC1-7): G01C19/72
Domestic Patent References:
| JP6465416A | ||||
| JP4112204U |
Attorney, Agent or Firm:
Soga Doteru (6 people outside)