ES2136525B1 - FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS. - Google Patents
FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS.Info
- Publication number
- ES2136525B1 ES2136525B1 ES9602528A ES9602528A ES2136525B1 ES 2136525 B1 ES2136525 B1 ES 2136525B1 ES 9602528 A ES9602528 A ES 9602528A ES 9602528 A ES9602528 A ES 9602528A ES 2136525 B1 ES2136525 B1 ES 2136525B1
- Authority
- ES
- Spain
- Prior art keywords
- displacements
- accelerations
- transducer head
- fiber optic
- monitoring
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Sistema sensor de fibra óptica para medida y/o monitorizado de aceleraciones o desplazamientos biaxiales. El sistema consiste en una cabeza transductora (1), un canal óptico (2) y una unidad de generación, detección de luz, y de tratamiento y procesado de la señal (3). Una vibración mecánica en la cabeza tranductora es reproducida fielmente (en el dominio eléctrico) en la salida del sistema (3{sub,S1 ). Aceleraciones o desplazamientos en la cabeza transductora, generan desplazamientos en un tallo de fibra óptica y modulan la intensidad luminosa que colectada diferencialmente por cuatro/dos fibras ópticas, se envía a través del canal óptico a la unidad de detección, acondicionamiento y procesado de señal, la cual reproduce en su salida la aceleración o el desplazamiento en la cabeza transductora. El sistema es escalable, pudiendo medir simultáneamente vibraciones en puntos diferentes. El sistema, sin despreciar otras aplicaciones, mide aceleraciones de baja y muy baja frecuencia ondesplazamientos en instalaciones, estructuras, equipos y componentes, trabajando eficientemente en ambientes eléctrica, magnética o electromagnéticamente contaminados, pudiendo, con diseños adecuados, trabajar en rangos muy variados de frecuencias.Fiber optic sensor system for measurement and / or monitoring of biaxial accelerations or displacements. The system consists of a transducer head (1), an optical channel (2) and a unit for generating, detecting light, and treating and processing the signal (3). A mechanical vibration in the transducer head is faithfully reproduced (in the electrical domain) at the output of the system (3 {sub, S1). Accelerations or displacements in the transducer head, generate displacements in a fiber optic stalk and modulate the light intensity that differentially collected by four / two optical fibers, is sent through the optical channel to the signal detection, conditioning and processing unit, which reproduces in its output the acceleration or displacement in the transducer head. The system is scalable, being able to simultaneously measure vibrations at different points. The system, without neglecting other applications, measures low and very low frequency accelerations or displacements in installations, structures, equipment and components, working efficiently in electrically, magnetically or electromagnetically contaminated environments, being able, with suitable designs, to work in very varied ranges of frequencies .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9602528A ES2136525B1 (en) | 1996-11-11 | 1996-11-11 | FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9602528A ES2136525B1 (en) | 1996-11-11 | 1996-11-11 | FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2136525A1 ES2136525A1 (en) | 1999-11-16 |
| ES2136525B1 true ES2136525B1 (en) | 2000-08-01 |
Family
ID=8296861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9602528A Expired - Fee Related ES2136525B1 (en) | 1996-11-11 | 1996-11-11 | FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2136525B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2138541B1 (en) * | 1997-10-09 | 2000-08-16 | Univ Cantabria | SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068112B (en) * | 1980-01-24 | 1983-06-02 | Ferranti Ltd | Vibration detector |
| US4293188A (en) * | 1980-03-24 | 1981-10-06 | Sperry Corporation | Fiber optic small displacement sensor |
| US4408495A (en) * | 1981-10-02 | 1983-10-11 | Westinghouse Electric Corp. | Fiber optic system for measuring mechanical motion or vibration of a body |
| JPS59104518A (en) * | 1982-12-07 | 1984-06-16 | Toshiba Corp | Seismometer for atomic power plant |
| 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 |
| 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. |
-
1996
- 1996-11-11 ES ES9602528A patent/ES2136525B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2136525A1 (en) | 1999-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 19991116 Kind code of ref document: A1 Effective date: 19991116 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20170224 |