ES2138541B1 - SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. - Google Patents
SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER.Info
- Publication number
- ES2138541B1 ES2138541B1 ES9702144A ES9702144A ES2138541B1 ES 2138541 B1 ES2138541 B1 ES 2138541B1 ES 9702144 A ES9702144 A ES 9702144A ES 9702144 A ES9702144 A ES 9702144A ES 2138541 B1 ES2138541 B1 ES 2138541B1
- Authority
- ES
- Spain
- Prior art keywords
- fiber optic
- transducer head
- self
- stalk
- optic accelerometer
- 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
- 239000000835 fiber Substances 0.000 title abstract 5
- 238000006073 displacement reaction Methods 0.000 abstract 3
- 230000001133 acceleration Effects 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
Acelerómetro de fibra óptica multipunto y autocompensado. El Acelerómetro de Fibra óptica consiste en una cabeza transductora (A), un canal óptico (B), y una unidad electro-óptica (C) que reproduce en su salida la vibración impuesta a la cabeza transductora. La cabeza transductora incorpora un tallo de fibra óptica móvil y una red de difracción, que difracta espectralmente luz blanca que es recogida por el extremo del tallo de fibra óptica, siendo el desplazamiento relativo entre la red de difracción y el extremo del tallo función de la aceleración o del desplazamiento a la que es sometida la cabeza transductora. La luz modulada por la cabeza transductora es analizada por la unidad electro-óptica, que implementa un sistema de compensación para evitar la influencia sobre la medida de derivas y perturbaciones externas, y proporcionar una medida autocalibrada. El sensor, sin despreciar otras aplicaciones, mide aceleraciones y desplazamientos en instalaciones, estructuras, equipos y componentes, trabajando eficientemente en ambientes electromagnéticamente contaminados.Multipoint, self-compensating fiber optic accelerometer. The Fiber Optic Accelerometer consists of a transducer head (A), an optical channel (B), and an electro-optical unit (C) that reproduces at its output the vibration imposed on the transducer head. The transducer head incorporates a mobile fiber optic stalk and a diffraction grating, which spectrally diffracts white light that is collected by the end of the fiber optic stalk, the relative displacement between the diffraction grating and the end of the stalk being a function of the acceleration or displacement to which the transducer head is subjected. The light modulated by the transducer head is analyzed by the electro-optical unit, which implements a compensation system to avoid influencing the measurement of drifts and external disturbances, and to provide a self-calibrated measurement. The sensor, without neglecting other applications, measures accelerations and displacements in installations, structures, equipment and components, working efficiently in electromagnetically contaminated environments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9702144A ES2138541B1 (en) | 1997-10-09 | 1997-10-09 | SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9702144A ES2138541B1 (en) | 1997-10-09 | 1997-10-09 | SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2138541A1 ES2138541A1 (en) | 2000-01-01 |
| ES2138541B1 true ES2138541B1 (en) | 2000-08-16 |
Family
ID=8300885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9702144A Expired - Fee Related ES2138541B1 (en) | 1997-10-09 | 1997-10-09 | SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2138541B1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068112B (en) * | 1980-01-24 | 1983-06-02 | Ferranti Ltd | Vibration detector |
| GB8504987D0 (en) * | 1985-02-27 | 1985-03-27 | Univ Strathclyde | Measuring device |
| FR2615284B1 (en) * | 1987-05-11 | 1992-02-28 | Photonetics | DEVICE FOR THE DETECTION OF VIBRATIONS COMPRISING A MULTIMODE OPTICAL FIBER AS A SENSITIVE ELEMENT |
| GB2215055B (en) * | 1988-02-20 | 1992-04-01 | Stc Plc | Optical fibre sensor |
| US5515730A (en) * | 1992-11-23 | 1996-05-14 | British Aerospace Plc | Apparatus for detecting the amplitude, frequency or modes of vibration of a vibrating panel |
| JPH08145780A (en) * | 1994-11-16 | 1996-06-07 | Tohoku Nakatani:Kk | Vibration sensor |
| ES2124158B1 (en) * | 1995-11-28 | 1999-09-16 | Univ Cantabria | FIBER OPTIC SENSOR SYSTEM FOR MEASURING ACCELERATIONS OR UNIAXIAL DISPLACEMENTS SUITABLE FOR WORKING IN ELECTROMAGNETICALLY HOSTILE ENVIRONMENTS. |
| ES2136525B1 (en) * | 1996-11-11 | 2000-08-01 | Univ Cantabria | FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS. |
-
1997
- 1997-10-09 ES ES9702144A patent/ES2138541B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2138541A1 (en) | 2000-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2656095B1 (en) | OPTICAL FIBER SENSOR. | |
| CA2574192A1 (en) | Pressure compensated optical accelerometer, optical inclinometer and seismic sensor system | |
| FR2689234B1 (en) | IMPROVED FIBER OPTIC PRESSURE SENSOR. | |
| FR2427584A1 (en) | OPTICAL FIBER DEVICE FOR THE MEASUREMENT OF PHYSICAL QUANTITIES SUCH AS POSITION, SPEED, FORCE, PRESSURE AND OTHER SIMILAR QUANTITIES | |
| BR9800864A (en) | Optical unit for fiber optic cable. | |
| FR2615279B1 (en) | DISPLACEMENT SENSOR WITH OFFSET FIBER OPTICS | |
| DE69017647D1 (en) | Distributed multiplexed optical Bragg grating fiber sensor arrangement. | |
| FR2720198B1 (en) | Linearly polarized fiber optic laser. | |
| IT8024368A0 (en) | FIBER OPTIC STRESS SENSOR. | |
| FR2626367B1 (en) | MULTI-POINT FIBER OPTIC TEMPERATURE SENSOR | |
| NO20015825D0 (en) | Hyper-Sensitive Displacement Sensor II - Fabry Perot | |
| BR0204570A (en) | Monolithic Reconfigurable Optical Multiplexing Systems and Methods | |
| EP1324099A4 (en) | Optical fiber connector, wavelength varying device, pressure sensor, acceleration sensor, and optical device | |
| MX9202155A (en) | FIBER OPTIC ARRANGEMENT JOINT DEVICE. | |
| ES2052963T3 (en) | FIBER OPTIC VIBRATION SENSOR. | |
| FR2637080B1 (en) | FIBER OPTIC PRESSURE SENSOR | |
| FR2683901B1 (en) | FIBER OPTIC TEMPERATURE SENSOR. | |
| FR2706606B1 (en) | Reconfigurable fiber optic sensor. | |
| ES2295746T3 (en) | OPTICAL DISPLACEMENT TRANSDUCER SYSTEM AND DISPLACEMENT MEASUREMENT PROCEDURE. | |
| DE50301732D1 (en) | Optical fiber coupling | |
| KR890008579A (en) | Coupling device between optical fiber and opto-electronic device | |
| ES2138541B1 (en) | SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. | |
| FR2680004B1 (en) | OPTICAL FIBER MOISTURE SENSOR. | |
| MX169219B (en) | MEANS TO SECURE FIBER OPTIC CABLE | |
| FR2670014B1 (en) | INTRINSIC TACHYMETRIC SENSOR WITH OPTICAL FIBER. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 20000101 Kind code of ref document: A1 Effective date: 20000101 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20180126 |