DE69431421T2 - Hochtemperaturdruckfühler mit drei Faserlichtleitern unterschiedlicher numerischer Apertur - Google Patents

Hochtemperaturdruckfühler mit drei Faserlichtleitern unterschiedlicher numerischer Apertur

Info

Publication number
DE69431421T2
DE69431421T2 DE69431421T DE69431421T DE69431421T2 DE 69431421 T2 DE69431421 T2 DE 69431421T2 DE 69431421 T DE69431421 T DE 69431421T DE 69431421 T DE69431421 T DE 69431421T DE 69431421 T2 DE69431421 T2 DE 69431421T2
Authority
DE
Germany
Prior art keywords
high temperature
pressure sensor
fiber optic
optic cables
temperature pressure
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 - Fee Related
Application number
DE69431421T
Other languages
English (en)
Other versions
DE69431421D1 (de
Inventor
Tsung-Yuan Hsu
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.)
DirecTV Group Inc
Original Assignee
Hughes Electronics 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 Hughes Electronics Corp filed Critical Hughes Electronics Corp
Publication of DE69431421D1 publication Critical patent/DE69431421D1/de
Application granted granted Critical
Publication of DE69431421T2 publication Critical patent/DE69431421T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/16—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by photoelectric means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Measuring Fluid Pressure (AREA)
  • Light Guides In General And Applications Therefor (AREA)
DE69431421T 1993-08-27 1994-08-19 Hochtemperaturdruckfühler mit drei Faserlichtleitern unterschiedlicher numerischer Apertur Expired - Fee Related DE69431421T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/113,537 US5446279A (en) 1993-08-27 1993-08-27 Fiber optic sensor sensing curvature of a diaphragm

Publications (2)

Publication Number Publication Date
DE69431421D1 DE69431421D1 (de) 2002-10-31
DE69431421T2 true DE69431421T2 (de) 2003-07-31

Family

ID=22350007

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431421T Expired - Fee Related DE69431421T2 (de) 1993-08-27 1994-08-19 Hochtemperaturdruckfühler mit drei Faserlichtleitern unterschiedlicher numerischer Apertur

Country Status (6)

Country Link
US (1) US5446279A (de)
EP (2) EP1026493A3 (de)
JP (1) JPH07151624A (de)
KR (1) KR950006437A (de)
CA (1) CA2130652C (de)
DE (1) DE69431421T2 (de)

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US5763769A (en) * 1995-10-16 1998-06-09 Kluzner; Michael Fiber optic misfire, knock and LPP detector for internal combustion engines
US5956447A (en) * 1996-05-07 1999-09-21 Univ Central Florida Device and method for image acquisition through multi-mode fiber
US5706372A (en) * 1996-08-12 1998-01-06 Delco Electronics Corporation Integrated optoelectronic combustion pressure sensor
WO1998017988A1 (en) * 1996-10-23 1998-04-30 Optrand, Inc. Integrated fiber optic combustion pressure sensor
JP2001512564A (ja) * 1997-02-06 2001-08-21 オプトランド，インコーポレイテッド 内蔵光ファイバー圧力センサーを具えた注入器および付設補償状態モニター装置
JPH11173937A (ja) * 1997-12-15 1999-07-02 Hitachi Ltd 車載用光ファイバ式筒内圧センサ
US5923809A (en) * 1998-02-02 1999-07-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Optical power source derived from engine combustion chambers
US6125218A (en) * 1998-03-19 2000-09-26 Humphrey; Ashley C. Fiber optic pressure sensitive optical switch and apparatus incorporating same
US6758086B2 (en) * 2001-06-08 2004-07-06 Marek T. Wlodarczyk Automotive cylinder pressure sensors
WO2003019127A1 (de) * 2001-08-16 2003-03-06 Adz Nagano Gmbh Optische vorrichtung zum messen des druckes oder der kraft
CA2411638A1 (en) * 2002-11-12 2004-05-12 Photon Control Inc. Fiber optic sensing system
DE10312491B3 (de) * 2003-03-20 2005-02-03 Robert Bosch Gmbh Drucksensor mit Hitzeschild zum Einsatz in Verbrennungskraftmaschinen
WO2004113983A1 (en) * 2003-06-26 2004-12-29 Lg Cable Ltd. Apparatus for installing an optical fiber unit including a controller for controlling critical displacement of buckling and installation method using the same
US7104141B2 (en) * 2003-09-04 2006-09-12 Baker Hughes Incorporated Optical sensor with co-located pressure and temperature sensors
US7191660B2 (en) * 2004-04-15 2007-03-20 Davidson Instruments Inc. Flame shield for high temperature pressure transducer
JP2007033075A (ja) * 2005-07-22 2007-02-08 Jfe Advantech Co Ltd 光学式水位計
US7299700B2 (en) * 2005-10-04 2007-11-27 General Electric Company Methods and apparatus for sensing pressure
US7409867B2 (en) * 2006-05-23 2008-08-12 Rosemount Inc. Pressure sensor using light source
US8327713B2 (en) 2008-12-03 2012-12-11 Rosemount Inc. Method and apparatus for pressure measurement using magnetic property
US7870791B2 (en) 2008-12-03 2011-01-18 Rosemount Inc. Method and apparatus for pressure measurement using quartz crystal
US7954383B2 (en) 2008-12-03 2011-06-07 Rosemount Inc. Method and apparatus for pressure measurement using fill tube
US7966887B2 (en) 2009-03-26 2011-06-28 General Electric Company High temperature optical pressure sensor and method of fabrication of the same
GB2472437A (en) * 2009-08-06 2011-02-09 Vestas Wind Sys As Wind turbine rotor blade control based on detecting turbulence
DE102010029818B4 (de) 2010-06-08 2022-08-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Positionssensor
US8132464B2 (en) 2010-07-12 2012-03-13 Rosemount Inc. Differential pressure transmitter with complimentary dual absolute pressure sensors
DE102010037403B4 (de) * 2010-09-08 2013-08-14 CiS Forschungsinstitut für Mikrosensorik und Photovoltaik GmbH Anordnung zur Messung von Verbiegungen
US9510786B2 (en) * 2011-06-22 2016-12-06 Biosense Webster (Israel) Ltd. Optical pressure measurement
US8752433B2 (en) 2012-06-19 2014-06-17 Rosemount Inc. Differential pressure transmitter with pressure sensor
US10823592B2 (en) 2013-09-26 2020-11-03 Rosemount Inc. Process device with process variable measurement using image capture device
JP6233707B2 (ja) * 2014-03-04 2017-11-22 東京エレクトロン株式会社 光学式温度センサ及び光学式温度センサの製造方法
JPWO2017175314A1 (ja) * 2016-04-05 2019-02-21 オリンパス株式会社 湾曲情報導出装置及び内視鏡システム
WO2019055642A2 (en) * 2017-09-14 2019-03-21 Rosemount Inc COMPACT SENSOR CONNECTOR FOR SINGLE-USE FLUID MEASUREMENT
JP2020088284A (ja) * 2018-11-29 2020-06-04 大日本印刷株式会社 圧電積層体
KR20220036777A (ko) * 2020-09-16 2022-03-23 주식회사 엘티전자 유연 발광섬유를 이용한 직물 조명장치
EP3995802A1 (de) * 2020-11-05 2022-05-11 Melexis Technologies NV Doppeldrucksensor
CN113959375B (zh) * 2021-08-25 2023-07-07 广东技术师范大学 一种塔筒法兰平面度检测装备的图像采集方法

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Also Published As

Publication number Publication date
EP0640819B1 (de) 2002-09-25
JPH07151624A (ja) 1995-06-16
KR950006437A (ko) 1995-03-21
EP0640819A2 (de) 1995-03-01
EP0640819A3 (de) 1996-11-27
DE69431421D1 (de) 2002-10-31
EP1026493A3 (de) 2001-02-07
US5446279A (en) 1995-08-29
CA2130652A1 (en) 1995-02-28
CA2130652C (en) 1999-11-23
EP1026493A2 (de) 2000-08-09

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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