GB1243359A - Detection of small displacements - Google Patents

Detection of small displacements

Info

Publication number
GB1243359A
GB1243359A GB5316468A GB5316468A GB1243359A GB 1243359 A GB1243359 A GB 1243359A GB 5316468 A GB5316468 A GB 5316468A GB 5316468 A GB5316468 A GB 5316468A GB 1243359 A GB1243359 A GB 1243359A
Authority
GB
United Kingdom
Prior art keywords
mirror
interferometer
signal
high frequency
nov
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
Application number
GB5316468A
Other languages
English (en)
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB1243359A publication Critical patent/GB1243359A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02075—Reduction or prevention of errors; Testing; Calibration of particular errors
    • G01B9/02078—Caused by ambiguity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02062—Active error reduction, i.e. varying with time
    • G01B9/02067—Active error reduction, i.e. varying with time by electronic control systems, i.e. using feedback acting on optics or light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/25—Fabry-Perot in interferometer, e.g. etalon, cavity

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Lasers (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
GB5316468A 1967-11-10 1968-11-08 Detection of small displacements Expired GB1243359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR127817 1967-11-10

Publications (1)

Publication Number Publication Date
GB1243359A true GB1243359A (en) 1971-08-18

Family

ID=8641565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5316468A Expired GB1243359A (en) 1967-11-10 1968-11-08 Detection of small displacements

Country Status (5)

Country Link
BE (1) BE722797A (enrdf_load_stackoverflow)
DE (1) DE1807876A1 (enrdf_load_stackoverflow)
FR (1) FR1555697A (enrdf_load_stackoverflow)
GB (1) GB1243359A (enrdf_load_stackoverflow)
NL (1) NL6815932A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538195A1 (fr) * 1982-12-16 1984-06-22 Int Standard Electric Corp Methode et systeme de transmission optique
WO2007100957A1 (en) * 2006-03-02 2007-09-07 Symphony Acoustics, Inc. Apparatus comprising a high-signal-to-noise displacement sensor and method therefore
US7583390B2 (en) 2006-03-02 2009-09-01 Symphony Acoustics, Inc. Accelerometer comprising an optically resonant cavity
CN102833661A (zh) * 2012-08-15 2012-12-19 温州泛波激光有限公司 一种激光麦克风

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116346A1 (de) * 1980-05-01 1982-03-04 National Research Development Corp., London Vorrichtung zum messen des tonvolumens bzw. des volumendurchflusses, insbesondere im niedrigbereich von nanolitern pro sekunde
DE3142164A1 (de) * 1980-10-27 1982-06-16 Rosemount Engineering Co. Ltd., Bognor Regis, Sussex Vorrichtung zur messung von druckunterschieden
JPS61235731A (ja) * 1985-04-11 1986-10-21 Sharp Corp 感圧素子
JPS6230921A (ja) * 1985-07-31 1987-02-09 Sharp Corp 光学式センサ
DE3709253A1 (de) * 1987-03-20 1988-09-29 Fraunhofer Ges Forschung Fabry-perot-sensor
FR2640456A1 (fr) * 1988-12-13 1990-06-15 Science Tec Microphone a detection interferometrique de pression acoustique
DE4125485C2 (de) * 1991-08-01 1994-05-19 Deutsche Aerospace Verfahren und Anordnung zur Messung kleinster Auslenkungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538195A1 (fr) * 1982-12-16 1984-06-22 Int Standard Electric Corp Methode et systeme de transmission optique
WO2007100957A1 (en) * 2006-03-02 2007-09-07 Symphony Acoustics, Inc. Apparatus comprising a high-signal-to-noise displacement sensor and method therefore
US7583390B2 (en) 2006-03-02 2009-09-01 Symphony Acoustics, Inc. Accelerometer comprising an optically resonant cavity
CN102833661A (zh) * 2012-08-15 2012-12-19 温州泛波激光有限公司 一种激光麦克风
CN102833661B (zh) * 2012-08-15 2016-08-03 温州泛波激光有限公司 一种激光麦克风

Also Published As

Publication number Publication date
DE1807876A1 (de) 1969-07-31
FR1555697A (enrdf_load_stackoverflow) 1969-01-31
NL6815932A (enrdf_load_stackoverflow) 1969-05-13
BE722797A (enrdf_load_stackoverflow) 1969-04-24

Similar Documents

Publication Publication Date Title
US4678909A (en) Optical pressure sensing apparatus
GB1243359A (en) Detection of small displacements
GB1462504A (en) Proximity sensors
SE7806486L (sv) Stabiliserat fiberoptiskt metdon
GB1001809A (en) Improvements in or relating to pressure transducers
FR1509786A (fr) Procédé et dispositif pour la mesure à distance à l'aide de faisceaux de lumière modulée
GB1271412A (en) Improvements in or relating to apparatus for sensing fluid pressure
US3433959A (en) Microphone
GB1301435A (enrdf_load_stackoverflow)
US3842353A (en) Photoelectric transducer
GB1392395A (en) Stabilization of optical path length differences
GB1011145A (en) Improved scanner apparatus
GB1195840A (en) Scanning Interferometer Using Wedge for Producing Fringes
GB1419111A (en) Photoelectric transducer
JPS5760239A (en) Pressure sensor
GB1173080A (en) Pressure Transducer
ATE83044T1 (de) Steuerungsschaltung fuer optische ueberwachung der verbrennung.
JPS5459166A (en) Visual sensibility measuring apparatus of interferometer
GB1111145A (en) Improvements in or relating to indicating and/or measuring devices
SU502331A1 (ru) Устройство дл измерени угловых вибрационных ускорений
SU413367A1 (enrdf_load_stackoverflow)
RU1812463C (ru) Волоконно-оптический датчик давлени
SU729436A1 (ru) Устройство дл измерени перемещений
SU438869A1 (ru) Оптико-электронное угломерное устройство
SU372434A1 (ru) Координатно-чувствительный датчик