OPTICAL BEAM LOSS ASSIGNING STRUCTURE AND OPTICAL FIBER PRESSURE SENSOR USING THE STRUCTURE

Title:

OPTICAL BEAM LOSS ASSIGNING STRUCTURE AND OPTICAL FIBER PRESSURE SENSOR USING THE STRUCTURE

Document Type and Number:

Japanese Patent JPH1048084

Kind Code:

A

Abstract:

To provide the same local bending in response to the same pressure with the looseness and flexibility of an optical fiber when assigning the optical fiber local bending corresponding to pressure.

An inner cylinder pipe 7 with a flange 9 at the center which has a primary coated optical fiber 2 inserted into a through-hole 8 and integrally fixed thereto is partly inserted into a through-hole 11 in an outer cylinder pipe 10 with a flange 12 at one end. The flange 9 and the outer cylindrical pipe 10 are connected together via a coil spring 6, the flange 12 is fixed to the side face of a support 1, the tensioned optical fiber 2 is fixed to the other side face of the support 1 and a projector 3 and a stator 4 opposing each other are arranged with the tensed optical fiber 2 therebetween to assign local bending thereto.

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Inventors:

NAKURA YUUJI
FUTAJIMA HIDEAKI
KAWAI TAKAYUKI
MIYAZAKI AKINOBU
YAGI MANABU
TOJO TAKASHI
KOMAZAKI SUSUMU

Application Number:

JP22440396A

Publication Date:

February 20, 1998

Filing Date:

August 06, 1996

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES
CHUBU ELECTRIC POWER
SAGINOMIYA SEISAKUSHO INC

International Classes:

G01L11/00; G01L1/24; G01L11/02; G02B6/00; (IPC1-7): G01L11/02; G02B6/00

Attorney, Agent or Firm:

Hidemi Aoki (1 outside)

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