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KR970066607A - 강 맨드릴을 가진 광 섬유 수중 청음기 - Google Patents

강 맨드릴을 가진 광 섬유 수중 청음기 Download PDF

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Publication number
KR970066607A
KR970066607A KR1019970007050A KR19970007050A KR970066607A KR 970066607 A KR970066607 A KR 970066607A KR 1019970007050 A KR1019970007050 A KR 1019970007050A KR 19970007050 A KR19970007050 A KR 19970007050A KR 970066607 A KR970066607 A KR 970066607A
Authority
KR
South Korea
Prior art keywords
optical fiber
interferometer
arm
hydrophone
elastic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
KR1019970007050A
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English (en)
Inventor
도널드 에이. 프레드릭
존 에프. 카피
Original Assignee
제임스 에프. 컬크
리튼 시스템즈, 인크.
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Application filed by 제임스 에프. 컬크, 리튼 시스템즈, 인크. filed Critical 제임스 에프. 컬크
Publication of KR970066607A publication Critical patent/KR970066607A/ko
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/186—Hydrophones
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4457—Bobbins; Reels

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Fluid Pressure (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Artificial Filaments (AREA)
  • Laser Surgery Devices (AREA)

Abstract

고압에서 추중 청음기 시스템에 사용되는 광 섬유 간섭계 센서는 강한 내부 원통 둘레에 기준 섬유를 포함한다. 유연성 재료의 강성층은 기준 섬유 상에 형성된다. 간섭계의 감지 아암은 기준 섬유 상에 형성된 재료 층 상에 권선된다. 외부 재료는 공기로 지지된 수중 청음기에 필적하는 음향 감도를 제공하기에 충분히 유연하다.

Description

강 맨드릴을 가진 광 섬유 수중 청음기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 음향압의 변화를 감지하는데 사용될 수 있는 Mach-Zenhnder 간섭계(interferometer)구조를 예시하는 도면, 제2도는 감지 및 기준 섬유가 강 맨드릴 상에 감겨 있는 본 발명의 제1실시예를 예시하는 도면, 제3도는 강 맨드릴 상에 형성된 기준 아암 코일과 포팅 후 감지 아암 코일로부터 제거되는 맨드릴 상에 형성된 감지 아암 코일을 가진 본 발명의 제2실시예에 따른 광 섬유 수중 청음기를형성하는 단계를 예시하는 도면.

Claims (4)

  1. 강 맨드릴(rigid mandrel)과; 감지 아암, 기준 아암, 및 음향압을 측정하도록 광 섬유 간섭계(fiber optic interferometer)로부터 출력된 광 신호를 처리하기 위한 장치를 가진 광 섬유 간섭계를 포함하며, 상기 기준 아암은 상 기 맨드릴 둘레에 권선되고, 광 섬유 수중 청음기(fiber optic hydrophone)가 음향계에 노출될 경우 거의 일정한 광로 길이를 갖도록 배열되는 광 섬유 길이를 포함하고, 상기 감지 아암은 코일로 형성되며, 상기 광 섬유 수중 청음기가 음향계에 노출될 경우 광로 길이 변화의 영향을 받아 배열되는 광 섬유 길이를 포함하는 간섭계 광 섬유 수중 청음기.
  2. 제1항에 있어서, 상기 기준 아암 상에 위치한 탄성 재료를 더 포함하며, 상기 감지 아암은 상기 감지 아암과 기준 아암이 동축에 있도록 상기 탄성 재료 상에 권선된 코일인 것을 특징으로 하는 간섭계 광 섬유 수중 청음기.
  3. 제2항에 있어서, 상기 탄성 재료가 우레탄을 포함하는 것을 특징으로 하는 간섭계 광 섬유 수중 청음기.
  4. 제1항에 있어서, 상기 감지 아암 코일은 탄성 재료에 싸여 있고 상기 기준 아암으로부터 이격되어 있는 것을 특징으로 하는 간섭계 광 섬유 수중 청음기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970007050A 1996-03-06 1997-03-04 강 맨드릴을 가진 광 섬유 수중 청음기 Ceased KR970066607A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/611,803 1996-03-06
US08/611,803 US5625724A (en) 1996-03-06 1996-03-06 Fiber optic hydrophone having rigid mandrel

Publications (1)

Publication Number Publication Date
KR970066607A true KR970066607A (ko) 1997-10-13

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ID=24450469

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970007050A Ceased KR970066607A (ko) 1996-03-06 1997-03-04 강 맨드릴을 가진 광 섬유 수중 청음기

Country Status (8)

Country Link
US (1) US5625724A (ko)
EP (1) EP0794414B1 (ko)
JP (1) JP3034816B2 (ko)
KR (1) KR970066607A (ko)
AU (1) AU720000B2 (ko)
CA (1) CA2199087C (ko)
DE (1) DE69721869T2 (ko)
NO (1) NO322785B1 (ko)

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Also Published As

Publication number Publication date
AU720000B2 (en) 2000-05-18
NO322785B1 (no) 2006-12-11
CA2199087C (en) 2001-02-20
DE69721869T2 (de) 2004-02-19
NO971036D0 (no) 1997-03-06
JP3034816B2 (ja) 2000-04-17
CA2199087A1 (en) 1997-09-06
EP0794414A3 (en) 1999-08-11
NO971036L (no) 1997-09-08
US5625724A (en) 1997-04-29
DE69721869D1 (de) 2003-06-18
EP0794414A2 (en) 1997-09-10
EP0794414B1 (en) 2003-05-14
AU1512197A (en) 1997-09-11
JPH1030955A (ja) 1998-02-03

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