IL78069A0 - Wavelength switched passive interferometric sensor system - Google Patents

Wavelength switched passive interferometric sensor system

Info

Publication number
IL78069A0
IL78069A0 IL78069A IL7806986A IL78069A0 IL 78069 A0 IL78069 A0 IL 78069A0 IL 78069 A IL78069 A IL 78069A IL 7806986 A IL7806986 A IL 7806986A IL 78069 A0 IL78069 A0 IL 78069A0
Authority
IL
Israel
Prior art keywords
sensing
changes
frequency
physical parameter
interference
Prior art date
Application number
IL78069A
Other languages
English (en)
Original Assignee
Litton Systems Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Litton Systems Inc filed Critical Litton Systems Inc
Publication of IL78069A0 publication Critical patent/IL78069A0/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/266—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light by interferometric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Lasers (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Optical Transform (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Push-Button Switches (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring Fluid Pressure (AREA)
IL78069A 1985-05-28 1986-03-06 Wavelength switched passive interferometric sensor system IL78069A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/738,620 US4789240A (en) 1985-05-28 1985-05-28 Wavelength switched passive interferometric sensor system

Publications (1)

Publication Number Publication Date
IL78069A0 true IL78069A0 (en) 1986-07-31

Family

ID=24968768

Family Applications (1)

Application Number Title Priority Date Filing Date
IL78069A IL78069A0 (en) 1985-05-28 1986-03-06 Wavelength switched passive interferometric sensor system

Country Status (10)

Country Link
US (1) US4789240A (ko)
EP (1) EP0203682B1 (ko)
JP (1) JPS61275607A (ko)
KR (1) KR900008062B1 (ko)
AT (1) ATE67590T1 (ko)
AU (1) AU5428986A (ko)
CA (1) CA1258383A (ko)
DE (1) DE3681499D1 (ko)
IL (1) IL78069A0 (ko)
NO (1) NO861167L (ko)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071214A (en) * 1988-05-12 1991-12-10 The Commonwealth Of Australia Interferometric fibre optic network
GB2219902B (en) * 1988-06-14 1992-01-22 Plessey Co Plc Optical sensing systems
DE68915486D1 (de) * 1988-08-12 1994-06-30 Consiglio Nazionale Ricerche Fiberoptischer Schwingungsfühler.
US4940328A (en) * 1988-11-04 1990-07-10 Georgia Tech Research Corporation Optical sensing apparatus and method
US4995697A (en) * 1989-09-07 1991-02-26 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Fiber optic sensing system
US5218419A (en) * 1990-03-19 1993-06-08 Eli Lilly And Company Fiberoptic interferometric sensor
US5059783A (en) * 1990-06-04 1991-10-22 Honeywell Inc. Interferometric fiber optic proximity switch
US5341205A (en) * 1991-01-15 1994-08-23 The United States Of America As Represented By The Secretary Of The Navy Method for characterization of optical waveguide devices using partial coherence interferometry
US6166815A (en) * 1992-09-02 2000-12-26 Raytheon Company Constantly high sensitivity fiber optic interferometer sensor
US5479546A (en) * 1994-05-16 1995-12-26 Litton Systems, Inc. Optimized non-linear effect tapered optical fiber interferometer/switch device
US5491335A (en) * 1994-08-31 1996-02-13 The United States Of America As Represented By The Secretary Of The Navy Fiber optic transducer with fluid coupling means between optical fiber and transduction material
US5553184A (en) * 1994-12-07 1996-09-03 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Process for the application of fiber optical bundles comprising optical fibers
AUPN329295A0 (en) * 1995-05-31 1995-06-22 University Of Sydney, The Fibre optic transducer
US6020963A (en) * 1996-06-04 2000-02-01 Northeastern University Optical quadrature Interferometer
US5883717A (en) * 1996-06-04 1999-03-16 Northeastern University Optical quadrature interferometry utilizing polarization to obtain in-phase and quadrature information
US6008900A (en) * 1998-02-10 1999-12-28 Litton Systems, Inc. Method and apparatus for calibration of a multi-channel fiber optic interferometric sensor system in a signal processing system
US6556509B1 (en) * 1999-11-08 2003-04-29 Optiphase, Inc. Demodulator and method for interferometric outputs of increased accuracy
JP3903105B2 (ja) * 2000-05-23 2007-04-11 富士フイルム株式会社 動的変化検出方法、動的変化検出装置及び超音波診断装置
US6384518B1 (en) * 2000-09-18 2002-05-07 Jean A. Van Poppel Piezoelectric coupler for variably coupling two bodies and joint incorporating the coupler
US6778720B1 (en) 2002-04-02 2004-08-17 Optiphase, Inc. Dual slope fiber optic array interrogator
AU2008299384B2 (en) * 2007-05-14 2013-07-11 Ocean Floor Geophysics Inc. Underwater electric field electromagnetic prospecting system
US7715015B2 (en) * 2007-10-25 2010-05-11 Optoplan As Adaptive mixing for high slew rates
NL1037113C2 (nl) * 2009-07-09 2011-01-12 Petrus Cornelis Jozef Emmen Inrichting en werkwijze voor centrale verwarming en het leveren van warm tapwater.
CN102401670A (zh) * 2011-04-06 2012-04-04 杭州安远科技有限公司 一种降低光纤双折射影响的光纤干涉测量系统
US9127531B2 (en) * 2011-09-07 2015-09-08 Halliburton Energy Services, Inc. Optical casing collar locator systems and methods
CN102620757A (zh) * 2012-03-27 2012-08-01 中国科学院半导体研究所 一种对光纤干涉型传感信号进行解调的系统及方法
WO2016032517A1 (en) * 2014-08-29 2016-03-03 Schlumberger Canada Limited Fiber optic magneto-responsive sensor assembly
US10712180B2 (en) * 2016-08-11 2020-07-14 The Charles Stark Draper Laboratory, Inc. Segmented poled optical fiber for fiber optic sensor and phased array
CN107402029B (zh) * 2017-08-08 2019-08-20 电子科技大学 利用正交信号提高分布式光纤传感测量速度的方法及系统
CN109945903B (zh) * 2019-04-30 2021-06-08 安徽大学 全光纤结构可调腔增益激光自混合振动、位移、速度传感方法和系统
CN110375779B (zh) * 2019-07-29 2021-06-04 武汉昊衡科技有限公司 提高ofdr频域采样率的装置和方法
US11868025B2 (en) * 2020-10-21 2024-01-09 Lawrence Livermore National Security, Llc Temporal resolution and fidelity enhancement of arbitrary waveforms
CN112816096B (zh) * 2021-03-08 2024-06-07 杭州电子科技大学 基于游标效应的级联干涉仪光纤温度传感器
CN113218518B (zh) * 2021-05-07 2024-09-20 姚晓天 基于集成光路的正弦-余弦光频率检测装置及其应用

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990036A (en) * 1974-02-28 1976-11-02 Western Geophysical Co. Multiplexing method and apparatus for telemetry of seismic data
JPS5621004A (en) * 1979-07-30 1981-02-27 Toshiba Corp Optical sensing system
US4443700A (en) * 1980-02-01 1984-04-17 Pedro B. Macedo Optical sensing apparatus and method
US4360272A (en) * 1980-03-20 1982-11-23 Optelecom, Inc. Fiber optic energy sensor and optical demodulation system and methods of making same
GB2096762A (en) * 1981-04-09 1982-10-20 Univ London Optical fibre sensor device
US4505587A (en) * 1981-08-14 1985-03-19 Massachusetts Institute Of Technology Picosecond optical sampling
US4588296A (en) * 1981-10-07 1986-05-13 Mcdonnell Douglas Corporation Compact optical gyro
US4418981A (en) * 1982-01-19 1983-12-06 Gould Inc. Quadrature fiber-optic interferometer matrix
US4514054A (en) * 1982-01-19 1985-04-30 Gould Inc. Quadrature fiber-optic interferometer matrix
CA1229674A (en) * 1982-04-14 1987-11-24 John E. Bowers Fiber optic sensor for detecting very small displacements of a surface
US4552457A (en) * 1983-02-01 1985-11-12 Giallorenzi Thomas G Fiber optic interferometer using two wavelengths or variable wavelength
US4606020A (en) * 1984-02-03 1986-08-12 The United States Of America As Represented By The Secretary Of The Army Efficient design technique for wavelength division multiplexing
US4632551A (en) * 1984-06-11 1986-12-30 Litton Systems, Inc. Passive sampling interferometric sensor arrays
US4681395A (en) * 1985-02-22 1987-07-21 Eldec Corporation Time-domain intensity normalization for fiber optic sensing

Also Published As

Publication number Publication date
KR860009297A (ko) 1986-12-22
EP0203682A3 (en) 1989-06-07
NO861167L (no) 1986-12-01
CA1258383A (en) 1989-08-15
KR900008062B1 (ko) 1990-10-31
AU5428986A (en) 1986-12-04
JPS61275607A (ja) 1986-12-05
EP0203682B1 (en) 1991-09-18
ATE67590T1 (de) 1991-10-15
DE3681499D1 (de) 1991-10-24
JPH0416721B2 (ko) 1992-03-25
EP0203682A2 (en) 1986-12-03
US4789240A (en) 1988-12-06

Similar Documents

Publication Publication Date Title
EP0203682A3 (en) Wavelength switched passive interferometric sensor system
US9400167B2 (en) Disturbance detection using a passively terminated fiber optic sensor
Spammer et al. Merged Sagnac-Michelson interferometer for distributed disturbance detection
EP0296746B1 (en) Interferometric sensor using time domain measurements
US4976507A (en) Sagnac distributed sensor
US4898468A (en) Sagnac distributed sensor
US4853534A (en) Optical fiber sensing system
EP0364093A3 (en) Methods of and systems for optical fiber sensing
CN109724685A (zh) 基于Fizeau干涉的光纤光栅水声传感阵列解调方法及系统
JPH01238297A (ja) 光ファイバハイドロフォンおよび一連のハイドロフォンを結合したアンテナ
GB2100855A (en) Sideband modulating/ demodulating fibre optic gyroscope
Chtcherbakov et al. Polarization effects in the Sagnac-Michelson distributed disturbance location sensor
CA2210412A1 (en) Apparatus and method for interferometric measurement
US4874244A (en) Method and apparatus for increasing the unambiguous sensing range in an interferometric fiber gyroscope
US4566794A (en) Apparatus for interference fringe shift sensing
Meggitt et al. An all fibre white light interferometric strain measurement system
WO1990010883A1 (en) A method to use an optical fibre as a sensor
US6154308A (en) Two step discrete phase shift demodulation method for fiber optic sensor arrays
EP0160450B1 (en) Phase reading fiber optic interferometer
EP0257959A3 (en) Optical fibre measurement apparatus and method
Wu et al. Improved differential phase detecting optical fiber interferometer with a low-frequency compensation scheme
Davis Introduction to fiberoptic sensors.
GB2172101A (en) Optical sensing system
Ho et al. Passive phase demodulation and laser-noise compensation scheme for fibre interferometers
RU2244259C1 (ru) Оптоэлектронный кренометр