ES2124158B1 - FIBER OPTIC SENSOR SYSTEM FOR MEASURING ACCELERATIONS OR UNIAXIAL DISPLACEMENTS SUITABLE FOR WORKING IN ELECTROMAGNETICALLY HOSTILE ENVIRONMENTS. - Google Patents
FIBER OPTIC SENSOR SYSTEM FOR MEASURING ACCELERATIONS OR UNIAXIAL DISPLACEMENTS SUITABLE FOR WORKING IN ELECTROMAGNETICALLY HOSTILE ENVIRONMENTS.Info
- Publication number
- ES2124158B1 ES2124158B1 ES9502435A ES9502435A ES2124158B1 ES 2124158 B1 ES2124158 B1 ES 2124158B1 ES 9502435 A ES9502435 A ES 9502435A ES 9502435 A ES9502435 A ES 9502435A ES 2124158 B1 ES2124158 B1 ES 2124158B1
- Authority
- ES
- Spain
- Prior art keywords
- displacements
- transducer head
- electromagnetically
- working
- uniaxial
- 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
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
EL SISTEMA CONSISTE EN UNA CABEZA TRANSDUCTORA (1), UN CANAL OPTICO (2) Y UNA UNIDAD DE GENERACION, DETECCION DE LUZ Y DE TRATAMIENTO Y PROCESADO DE SEÑAL (3). UNA VIBRACION MECANICA EN LA CABEZA TRANSDUCTORA ES REPRODUCIDA FIELMENTE (EN EL DOMINIO ELECTRICO) EN LA SALIDA DEL SISTEMA 3S1. ACELERACIONES O DESPLAZAMIENTOS EN LA CABEZA TRANSDUCTORA, GENERAN DESPLAZAMIENTOS EN UN TALLO DE FIBRA OPTICA Y MODULAN LA INTENSIDAD LUMINOSA QUE, COLECTADA DIFERENCIALMENTE POR DOS FIBRAS OPTICAS, SE ENVIA A TRAVES DEL CANAL OPTICO A LA UNIDAD DE DETECCION, ACONDICIONAMIENTO Y PROCESADO DE SEÑAL, LA CUAL REPRODUCE EN SU SALIDA LA ACELERACION O EL DESPLAZAMIENTO EN LA CABEZA TRANSDUCTORA. EL SISTEMA ES ESCALABLE, PUDIENDO MEDIR SIMULTANEAMENTE VIBRACIONES EN PUNTOS DIFERENTES. EL SISTEMA, SIN DESPRECIAR OTRAS APLICACIONES, MIDE ACELERACIONES DE BAJA Y MUY BAJA FRECUENCIA O DESPLAZAMIENTOS EN INSTALACIONES, ESTRUCTURAS, EQUIPOS Y COMPONENTES, TRABAJANDO EFICIENTEMENTE EN AMBIENTE ELECTRICA, MAGNETICA O ELECTROMAGNETICAMENTE CONTAMINADOS.THE SYSTEM CONSISTS OF A TRANSDUCER HEAD (1), AN OPTICAL CHANNEL (2) AND A UNIT OF GENERATION, LIGHT DETECTION AND TREATMENT AND SIGNAL PROCESSING (3). A MECHANICAL VIBRATION IN THE TRANSDUCER HEAD IS FAITHFULLY REPRODUCED (IN THE ELECTRIC DOMAIN) AT THE OUTPUT OF THE 3S1 SYSTEM. ACCELERATIONS OR DISPLACEMENTS IN THE TRANSDUCER HEAD, GENERATE DISPLACEMENTS IN A STEM OF OPTICAL FIBER AND MODULATE THE LIGHT INTENSITY WHICH, DIFFERENTIALLY COLLECTED BY TWO OPTICAL FIBERS, IS SENT THROUGH THE OPTIONAL CHANNEL TO THE DETECTION UNIT WHICH REPRODUCES ACCELERATION OR DISPLACEMENT IN THE TRANSDUCER HEAD ON ITS OUTPUT. THE SYSTEM IS SCALABLE, BEING ABLE TO MEASURE VIBRATIONS SIMULTANEOUSLY AT DIFFERENT POINTS. THE SYSTEM, WITHOUT DISREGARDING OTHER APPLICATIONS, MEASURES LOW AND VERY LOW FREQUENCY ACCELERATIONS OR DISPLACEMENTS IN FACILITIES, STRUCTURES, EQUIPMENT AND COMPONENTS, WORKING EFFICIENTLY IN ELECTRICAL, MAGNETIC OR ELECTROMAGNETICALLY CONTAMINATED ENVIRONMENTS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9502435A ES2124158B1 (en) | 1995-11-28 | 1995-11-28 | FIBER OPTIC SENSOR SYSTEM FOR MEASURING ACCELERATIONS OR UNIAXIAL DISPLACEMENTS SUITABLE FOR WORKING IN ELECTROMAGNETICALLY HOSTILE ENVIRONMENTS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9502435A ES2124158B1 (en) | 1995-11-28 | 1995-11-28 | FIBER OPTIC SENSOR SYSTEM FOR MEASURING ACCELERATIONS OR UNIAXIAL DISPLACEMENTS SUITABLE FOR WORKING IN ELECTROMAGNETICALLY HOSTILE ENVIRONMENTS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2124158A1 ES2124158A1 (en) | 1999-01-16 |
ES2124158B1 true ES2124158B1 (en) | 1999-09-16 |
Family
ID=8292441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9502435A Expired - Fee Related ES2124158B1 (en) | 1995-11-28 | 1995-11-28 | FIBER OPTIC SENSOR SYSTEM FOR MEASURING ACCELERATIONS OR UNIAXIAL DISPLACEMENTS SUITABLE FOR WORKING IN ELECTROMAGNETICALLY HOSTILE ENVIRONMENTS. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2124158B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2136525B1 (en) * | 1996-11-11 | 2000-08-01 | Univ Cantabria | FIBER OPTIC SENSOR SYSTEM FOR MEASURING AND / OR MONITORING BIAXIAL ACCELERATIONS OR DISPLACEMENTS. |
ES2138541B1 (en) * | 1997-10-09 | 2000-08-16 | Univ Cantabria | SELF-COMPENSATED AND MULTI-POINT FIBER OPTIC ACCELEROMETER. |
Family Cites Families (7)
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 |
-
1995
- 1995-11-28 ES ES9502435A patent/ES2124158B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2124158A1 (en) | 1999-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19990116 Kind code of ref document: A1 Effective date: 19990116 |
|
FD2A | Announcement of lapse in spain |
Effective date: 20160304 |