NL6815932A - - Google Patents

Info

Publication number
NL6815932A
NL6815932A NL6815932A NL6815932A NL6815932A NL 6815932 A NL6815932 A NL 6815932A NL 6815932 A NL6815932 A NL 6815932A NL 6815932 A NL6815932 A NL 6815932A NL 6815932 A NL6815932 A NL 6815932A
Authority
NL
Netherlands
Prior art keywords
mirror
interferometer
signal
high frequency
nov
Prior art date
Application number
NL6815932A
Other languages
English (en)
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 filed Critical
Publication of NL6815932A publication Critical patent/NL6815932A/xx

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)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Lasers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
NL6815932A 1967-11-10 1968-11-08 NL6815932A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL6815932A true NL6815932A (enrdf_load_stackoverflow) 1969-05-13

Family

ID=8641565

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6815932A NL6815932A (enrdf_load_stackoverflow) 1967-11-10 1968-11-08

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)

Families Citing this family (11)

* 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
FR2538195B1 (fr) * 1982-12-16 1986-10-17 Int Standard Electric Corp Methode et systeme de transmission optique
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
US7583390B2 (en) 2006-03-02 2009-09-01 Symphony Acoustics, Inc. Accelerometer comprising an optically resonant cavity
US7355723B2 (en) * 2006-03-02 2008-04-08 Symphony Acoustics, Inc. Apparatus comprising a high-signal-to-noise displacement sensor and method therefore
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
GB1243359A (en) 1971-08-18
DE1807876A1 (de) 1969-07-31
FR1555697A (enrdf_load_stackoverflow) 1969-01-31
BE722797A (enrdf_load_stackoverflow) 1969-04-24

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