DE3679686D1 - Zeitfeld-intensitaetsnormalisierung fuer lichtfaserdetektor. - Google Patents

Zeitfeld-intensitaetsnormalisierung fuer lichtfaserdetektor.

Info

Publication number
DE3679686D1
DE3679686D1 DE8686301256T DE3679686T DE3679686D1 DE 3679686 D1 DE3679686 D1 DE 3679686D1 DE 8686301256 T DE8686301256 T DE 8686301256T DE 3679686 T DE3679686 T DE 3679686T DE 3679686 D1 DE3679686 D1 DE 3679686D1
Authority
DE
Germany
Prior art keywords
signal
intensity
component
delayed
signals
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.)
Expired - Lifetime
Application number
DE8686301256T
Other languages
English (en)
Inventor
Thomas A Lindsey
Randall E Morton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eldec Corp
Original Assignee
Eldec Corp
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 Eldec Corp filed Critical Eldec Corp
Application granted granted Critical
Publication of DE3679686D1 publication Critical patent/DE3679686D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
DE8686301256T 1985-02-22 1986-02-21 Zeitfeld-intensitaetsnormalisierung fuer lichtfaserdetektor. Expired - Lifetime DE3679686D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/704,324 US4681395A (en) 1985-02-22 1985-02-22 Time-domain intensity normalization for fiber optic sensing

Publications (1)

Publication Number Publication Date
DE3679686D1 true DE3679686D1 (de) 1991-07-18

Family

ID=24829004

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686301256T Expired - Lifetime DE3679686D1 (de) 1985-02-22 1986-02-21 Zeitfeld-intensitaetsnormalisierung fuer lichtfaserdetektor.

Country Status (4)

Country Link
US (1) US4681395A (de)
EP (1) EP0192490B1 (de)
AT (1) ATE64457T1 (de)
DE (1) DE3679686D1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789240A (en) * 1985-05-28 1988-12-06 Litton Systems, Inc. Wavelength switched passive interferometric sensor system
US4844573A (en) * 1987-05-22 1989-07-04 Aster Corporation Electro-optical converter including ridgid support for optical fiber coupler, telephone set using the coupler and method of making same
DE3717687C1 (de) * 1987-05-26 1988-12-01 Messerschmitt Boelkow Blohm Faseroptischer Stellwertgeber
US4893352A (en) * 1987-06-30 1990-01-09 Massachusetts Institute Of Technology Optical transmitter of modulated signals
US4818064A (en) * 1987-09-24 1989-04-04 Board Of Trustees Stanford Junior University Sensor array and method of selective interferometric sensing by use of coherence synthesis
US4930862A (en) * 1988-01-20 1990-06-05 The Babcock & Wilcox Company Fiberoptic microbend accelerometer
US4918373A (en) * 1988-03-18 1990-04-17 Hughes Aircraft Company R.F. phase noise test set using fiber optic delay line
DE3906118A1 (de) * 1989-02-28 1990-08-30 Bosch Gmbh Robert Vorrichtung zur interferometrischen erfassung von oberflaechenstrukturen
US4890893A (en) * 1989-03-02 1990-01-02 Bell Communications Research, Inc. Dark fiber switched bandwidth filter
JP3162364B2 (ja) * 1990-10-15 2001-04-25 住友電気工業株式会社 光センサ装置
US5258614A (en) * 1991-05-13 1993-11-02 The Babcock & Wilcox Company Optical fiber loop temperature sensor
US5196694A (en) * 1991-05-13 1993-03-23 The Babcock & Wilcox Company Temperature compensated self-referenced fiber optic microbend pressure transducer
US5275053A (en) * 1991-08-21 1994-01-04 Fiberoptic Sensor Technologies, Inc. Fiber optic pressure sensor systems
US5214729A (en) * 1991-12-31 1993-05-25 Gte Laboratories Incorporated Dynamic optical data buffer
US5392655A (en) * 1993-03-23 1995-02-28 Eldec Corporation Optical pickup and signal analyzing system for mass flowmeters
US5572350A (en) * 1994-03-31 1996-11-05 Lucent Technologies Inc. Method and apparatus to compensate for differential attenuation in an optical time slot interchanger
AUPN329295A0 (en) * 1995-05-31 1995-06-22 University Of Sydney, The Fibre optic transducer
US6305227B1 (en) * 1998-09-02 2001-10-23 Cidra Corporation Sensing systems using quartz sensors and fiber optics
US7038188B2 (en) * 2003-04-11 2006-05-02 Hewlett-Packard Development Company, Lp. Non-demolition photon detector that preserves input state characteristics
US8560059B2 (en) * 2007-03-09 2013-10-15 Covidien Lp System and methods for optical sensing and drug delivery using microneedles
US7713196B2 (en) 2007-03-09 2010-05-11 Nellcor Puritan Bennett Llc Method for evaluating skin hydration and fluid compartmentalization
CN103175555B (zh) * 2013-03-01 2015-04-01 浙江大学 一种基于多机理融合的多参量分布式光纤传感器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089584A (en) * 1976-10-29 1978-05-16 Northrop Corporation Multiple station multiplexed communications link employing a single optical fiber
GB1540907A (en) * 1976-12-07 1979-02-21 Standard Telephones Cables Ltd System for obtaining data from a plurality of condition responsive optical devices
US4420752A (en) * 1978-03-20 1983-12-13 Murray W. Davis Real-time parameter sensor-transmitter
US4334781A (en) * 1979-06-08 1982-06-15 Tokyo Shibaura Denki Kabushiki Kaisha Optical sensing system
US4313192A (en) * 1979-09-11 1982-01-26 Hydroacoustics, Inc. Optical transducer array system
US4294513A (en) * 1979-09-11 1981-10-13 Hydroacoustics Inc. Optical sensor system
EP0034107A1 (de) * 1980-02-11 1981-08-19 United Technologies Corporation Optisches Codiergerät, das Multiplex im Zeitbereich verwendet
FR2490432A1 (fr) * 1980-09-12 1982-03-19 Lignes Telegraph Telephon Dispositif de separation de deux signaux lumineux emis par des sources de longueurs d'onde differentes, et transmis sur une meme fibre optique, et recepteur comportant un tel dispositif
US4375680A (en) * 1981-01-16 1983-03-01 Mcdonnell Douglas Corporation Optical acoustic sensor
US4432599A (en) * 1981-03-27 1984-02-21 Sperry Corporation Fiber optic differential sensor
US4436995A (en) * 1981-06-29 1984-03-13 General Electric Company Fiber optics transducers for sensing parameter magnitude

Also Published As

Publication number Publication date
EP0192490B1 (de) 1991-06-12
EP0192490A2 (de) 1986-08-27
ATE64457T1 (de) 1991-06-15
US4681395A (en) 1987-07-21
EP0192490A3 (en) 1987-11-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee