NO20063264L - Forbedringer i og relatert til akselerometere. - Google Patents

Forbedringer i og relatert til akselerometere.

Info

Publication number
NO20063264L
NO20063264L NO20063264A NO20063264A NO20063264L NO 20063264 L NO20063264 L NO 20063264L NO 20063264 A NO20063264 A NO 20063264A NO 20063264 A NO20063264 A NO 20063264A NO 20063264 L NO20063264 L NO 20063264L
Authority
NO
Norway
Prior art keywords
cylinder
accelerometers
interferometer
rejection
core
Prior art date
Application number
NO20063264A
Other languages
English (en)
Other versions
NO332098B1 (no
Inventor
David John Hill
Roger Ian Crickmore
John Peter Fairfax Wooler
Peter James Thomas
Original Assignee
Qinetiq Ltd
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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of NO20063264L publication Critical patent/NO20063264L/no
Publication of NO332098B1 publication Critical patent/NO332098B1/no

Links

Classifications

    • 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
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/093—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by photoelectric pick-up
    • 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
    • G01V1/181—Geophones
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects
    • G02F1/0131—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
    • G02F1/0134—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence in optical waveguides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Acoustics & Sound (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Optical Transform (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Det er beskrevet et fiberoptisk akselerometer (1) som er særlig beregnet på bruk sammen med et interferometer (30). Akselerometeret utnytter løsningen med elastisk ettergivende sylinder, men ved å anordne den seismiske masse (13) i kjernen av sylinderen (7), fører dette til forbedret følsomhet og avvisning av påvirkninger som ligger utenom akseretningen.
NO20063264A 2004-01-17 2006-07-13 Fiberoptisk akselerometer og fremgangsmate ved maling av akselerasjon NO332098B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0401053.4A GB0401053D0 (en) 2004-01-17 2004-01-17 Improvements in and relating to accelerometers
PCT/GB2005/000078 WO2005068950A1 (en) 2004-01-17 2005-01-12 Improvements in and relating to accelerometers

Publications (2)

Publication Number Publication Date
NO20063264L true NO20063264L (no) 2006-08-17
NO332098B1 NO332098B1 (no) 2012-06-18

Family

ID=31726357

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20063264A NO332098B1 (no) 2004-01-17 2006-07-13 Fiberoptisk akselerometer og fremgangsmate ved maling av akselerasjon

Country Status (9)

Country Link
US (1) US8079261B2 (no)
EP (1) EP1704394B1 (no)
JP (1) JP2007519901A (no)
CN (1) CN100491937C (no)
AT (1) ATE385312T1 (no)
DE (1) DE602005004600T2 (no)
GB (1) GB0401053D0 (no)
NO (1) NO332098B1 (no)
WO (1) WO2005068950A1 (no)

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GB0520590D0 (en) * 2005-10-11 2005-11-16 Qinetiq Ltd Fibre-optic package and method of making the same
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GB201219331D0 (en) * 2012-10-26 2012-12-12 Optasense Holdings Ltd Fibre optic cable for acoustic/seismic sensing
CN104166014A (zh) * 2014-07-31 2014-11-26 清华大学 基于加速度传感器获取加速度信号的方法、加速度传感器
GB2531817B (en) 2014-11-03 2019-12-04 Westerngeco Seismic Holdings Ltd Accelerometer
US9752949B2 (en) 2014-12-31 2017-09-05 General Electric Company System and method for locating engine noise
US9556810B2 (en) 2014-12-31 2017-01-31 General Electric Company System and method for regulating exhaust gas recirculation in an engine
US9803567B2 (en) 2015-01-07 2017-10-31 General Electric Company System and method for detecting reciprocating device abnormalities utilizing standard quality control techniques
US9874488B2 (en) 2015-01-29 2018-01-23 General Electric Company System and method for detecting operating events of an engine
US9528445B2 (en) 2015-02-04 2016-12-27 General Electric Company System and method for model based and map based throttle position derivation and monitoring
US9903778B2 (en) 2015-02-09 2018-02-27 General Electric Company Methods and systems to derive knock sensor conditions
US9791343B2 (en) 2015-02-12 2017-10-17 General Electric Company Methods and systems to derive engine component health using total harmonic distortion in a knock sensor signal
US10001077B2 (en) 2015-02-19 2018-06-19 General Electric Company Method and system to determine location of peak firing pressure
US9915217B2 (en) 2015-03-05 2018-03-13 General Electric Company Methods and systems to derive health of mating cylinder using knock sensors
US9695761B2 (en) 2015-03-11 2017-07-04 General Electric Company Systems and methods to distinguish engine knock from piston slap
US9435244B1 (en) 2015-04-14 2016-09-06 General Electric Company System and method for injection control of urea in selective catalyst reduction
US9784231B2 (en) 2015-05-06 2017-10-10 General Electric Company System and method for determining knock margin for multi-cylinder engines
US9933334B2 (en) 2015-06-22 2018-04-03 General Electric Company Cylinder head acceleration measurement for valve train diagnostics system and method
US9784635B2 (en) 2015-06-29 2017-10-10 General Electric Company Systems and methods for detection of engine component conditions via external sensors
US10393609B2 (en) 2015-07-02 2019-08-27 Ai Alpine Us Bidco Inc. System and method for detection of changes to compression ratio and peak firing pressure of an engine
US9897021B2 (en) 2015-08-06 2018-02-20 General Electric Company System and method for determining location and value of peak firing pressure
US10760543B2 (en) 2017-07-12 2020-09-01 Innio Jenbacher Gmbh & Co Og System and method for valve event detection and control
CN107389978B (zh) * 2017-09-08 2020-02-11 北京大学 一种弱反射布拉格光栅加速度计及其传感方法
CN108344880B (zh) * 2018-02-13 2019-09-13 北京大学 一种不等臂长迈克尔逊光纤加速度计及其传感方法
CN110146153A (zh) * 2019-03-26 2019-08-20 中国船舶重工集团公司第七一五研究所 端面接收轴型光纤平面水听器
KR102250987B1 (ko) 2019-11-26 2021-05-12 국방과학연구소 압축형 가속도 센서 및 이의 조립 방법
CN112379414B (zh) * 2020-10-29 2024-02-02 安徽大学 共振抑制的光纤加速度传感探头及光纤微震监测传感器

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Also Published As

Publication number Publication date
CN1910430A (zh) 2007-02-07
ATE385312T1 (de) 2008-02-15
NO332098B1 (no) 2012-06-18
JP2007519901A (ja) 2007-07-19
US20080229825A1 (en) 2008-09-25
DE602005004600D1 (no) 2008-03-20
WO2005068950A1 (en) 2005-07-28
US8079261B2 (en) 2011-12-20
GB0401053D0 (en) 2004-02-18
EP1704394A1 (en) 2006-09-27
DE602005004600T2 (de) 2008-05-21
CN100491937C (zh) 2009-05-27
EP1704394B1 (en) 2008-01-30

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: OPTASENSE HOLDINGS LTD, GB

MM1K Lapsed by not paying the annual fees