FR2443698A1 - Transducteur acousto-optique - Google Patents
Transducteur acousto-optiqueInfo
- Publication number
- FR2443698A1 FR2443698A1 FR7929266A FR7929266A FR2443698A1 FR 2443698 A1 FR2443698 A1 FR 2443698A1 FR 7929266 A FR7929266 A FR 7929266A FR 7929266 A FR7929266 A FR 7929266A FR 2443698 A1 FR2443698 A1 FR 2443698A1
- Authority
- FR
- France
- Prior art keywords
- fibre
- diaphragm
- light flux
- light guide
- light
- 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.)
- Withdrawn
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
- G01H9/006—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors the vibrations causing a variation in the relative position of the end of a fibre and another element
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/003—Telephone sets using electrooptical means in the transmission path
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
L'invention concerne un transducteur acousto-optique. Dans ce transducteur comportant trois fibres optiques 17, 18, 19, ces dernières sont disposées les unes à la suite des autres à une faible distance et sont accouplées entre elles optiquement, la fibre d'entrée 18 alimentée par un flux lumineux d'intensité constante, la fibre formant transducteur médiane 17 est reliée à une membrane 5 oscillant transversalement à l'axe de la fibre de sorte que, lors de l'action d'un son, il se produit une variation de la surface de couplage entre la fibre 17 et la fibre d'entrée ou de sortie 18, 19, la fibre 19 délivrant un flux lumineux à intensité modulée. Application notamment aux systèmes de communications optiques.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782853336 DE2853336A1 (de) | 1978-12-09 | 1978-12-09 | Optisches mikrofon |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2443698A1 true FR2443698A1 (fr) | 1980-07-04 |
Family
ID=6056796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7929266A Withdrawn FR2443698A1 (fr) | 1978-12-09 | 1979-11-28 | Transducteur acousto-optique |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5582599A (fr) |
DE (1) | DE2853336A1 (fr) |
FR (1) | FR2443698A1 (fr) |
SE (1) | SE7910120L (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009028701A2 (fr) * | 2007-08-27 | 2009-03-05 | Canon Kabushiki Kaisha | Capteur d'ondes acoustiques, réseau de capteurs d'ondes acoustiques et appareil d'imagerie à ultrasons |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3243563A1 (de) * | 1982-11-25 | 1984-05-30 | Kromberg & Schubert, 5600 Wuppertal | Abtastsystem fuer schwingungen von gasfoermiger, fluessiger und fester materie |
DE29821889U1 (de) * | 1998-12-08 | 1999-03-04 | Merlaku, Kastriot, 84347 Pfarrkirchen | Photonen-Mikrofon |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3976876A (en) * | 1972-06-19 | 1976-08-24 | Brocker Dale C | Signal control apparatus |
US4166932A (en) * | 1977-09-07 | 1979-09-04 | International Standard Electric Corporation | Optical microphone with rectangular fiber optics |
-
1978
- 1978-12-09 DE DE19782853336 patent/DE2853336A1/de not_active Withdrawn
-
1979
- 1979-11-28 FR FR7929266A patent/FR2443698A1/fr not_active Withdrawn
- 1979-12-07 JP JP15825079A patent/JPS5582599A/ja active Pending
- 1979-12-07 SE SE7910120A patent/SE7910120L/xx unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3976876A (en) * | 1972-06-19 | 1976-08-24 | Brocker Dale C | Signal control apparatus |
US4166932A (en) * | 1977-09-07 | 1979-09-04 | International Standard Electric Corporation | Optical microphone with rectangular fiber optics |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009028701A2 (fr) * | 2007-08-27 | 2009-03-05 | Canon Kabushiki Kaisha | Capteur d'ondes acoustiques, réseau de capteurs d'ondes acoustiques et appareil d'imagerie à ultrasons |
WO2009028701A3 (fr) * | 2007-08-27 | 2010-02-11 | Canon Kabushiki Kaisha | Capteur d'ondes acoustiques, réseau de capteurs d'ondes acoustiques et appareil d'imagerie à ultrasons |
US8531527B2 (en) | 2007-08-27 | 2013-09-10 | Canon Kabushiki Kaisha | Acoustic-wave sensor, acoustic-wave sensor array, and ultrasonic imaging apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE2853336A1 (de) | 1980-06-26 |
JPS5582599A (en) | 1980-06-21 |
SE7910120L (sv) | 1980-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |