FR2685961B1 - OPTICAL VIBRATION SENSOR. - Google Patents
OPTICAL VIBRATION SENSOR.Info
- Publication number
- FR2685961B1 FR2685961B1 FR9200037A FR9200037A FR2685961B1 FR 2685961 B1 FR2685961 B1 FR 2685961B1 FR 9200037 A FR9200037 A FR 9200037A FR 9200037 A FR9200037 A FR 9200037A FR 2685961 B1 FR2685961 B1 FR 2685961B1
- Authority
- FR
- France
- Prior art keywords
- vibration sensor
- optical vibration
- optical
- sensor
- vibration
- 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
Links
Classifications
-
- 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
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm
- G01L9/0017—Optical excitation or measuring
-
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9200037A FR2685961B1 (en) | 1992-01-06 | 1992-01-06 | OPTICAL VIBRATION SENSOR. |
PCT/FR1993/000003 WO1993014609A1 (en) | 1992-01-06 | 1993-01-05 | Optical vibration sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9200037A FR2685961B1 (en) | 1992-01-06 | 1992-01-06 | OPTICAL VIBRATION SENSOR. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2685961A1 FR2685961A1 (en) | 1993-07-09 |
FR2685961B1 true FR2685961B1 (en) | 1994-03-11 |
Family
ID=9425400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9200037A Expired - Fee Related FR2685961B1 (en) | 1992-01-06 | 1992-01-06 | OPTICAL VIBRATION SENSOR. |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2685961B1 (en) |
WO (1) | WO1993014609A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002089523A1 (en) * | 2001-04-26 | 2002-11-07 | Koninklijke Philips Electronics N.V. | Device for detecting pressure fluctuations, display device, recording device and sound reproduction system |
US20150108334A1 (en) * | 2013-10-21 | 2015-04-23 | Mao-Jen Wu | Optical Sensor Module |
CN114623917A (en) * | 2022-02-28 | 2022-06-14 | 浙江大学 | Low-pass filtering fiber grating hydrophone adopting frustum-shaped diaphragm |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB362561A (en) * | 1930-09-26 | 1931-12-10 | Adolf Weghofer | Improvements in or relating to microphones |
US4310905A (en) * | 1980-02-20 | 1982-01-12 | General Dynamics, Pomona Division | Acoustical modulator for fiber optic transmission |
GB2079932A (en) * | 1980-07-08 | 1982-01-27 | Standard Telephones Cables Ltd | Opto-electronic microphone |
FR2512951A1 (en) * | 1981-09-15 | 1983-03-18 | Thomson Csf | Microphone for optical fibre communications link - uses membrane with light absorbing surface to affect optical path in totally reflective prism |
JPS60220700A (en) * | 1984-04-18 | 1985-11-05 | Gunjirou Terajima | Microphone |
-
1992
- 1992-01-06 FR FR9200037A patent/FR2685961B1/en not_active Expired - Fee Related
-
1993
- 1993-01-05 WO PCT/FR1993/000003 patent/WO1993014609A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO1993014609A1 (en) | 1993-07-22 |
FR2685961A1 (en) | 1993-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |
Effective date: 20081029 |