GB0516087D0 - Optical time domain reflectometry - Google Patents
Optical time domain reflectometryInfo
- Publication number
- GB0516087D0 GB0516087D0 GBGB0516087.4A GB0516087A GB0516087D0 GB 0516087 D0 GB0516087 D0 GB 0516087D0 GB 0516087 A GB0516087 A GB 0516087A GB 0516087 D0 GB0516087 D0 GB 0516087D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- time domain
- optical time
- domain reflectometry
- reflectometry
- optical
- 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.)
- Granted
Links
- 238000000253 optical time-domain reflectometry Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
- G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0202159.0A GB0202159D0 (en) | 2002-01-30 | 2002-01-30 | OPtical time domain reflectometry |
GB0415289A GB2403801B (en) | 2002-01-30 | 2003-01-30 | Optical time domain reflectometry |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0516087D0 true GB0516087D0 (en) | 2005-09-14 |
GB2416587A GB2416587A (en) | 2006-02-01 |
GB2416587B GB2416587B (en) | 2006-06-21 |
Family
ID=35613759
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0516087A Expired - Fee Related GB2416587B (en) | 2002-01-30 | 2003-01-30 | Optical time domain reflectometry |
GB0516101A Expired - Fee Related GB2416588B (en) | 2002-01-30 | 2003-01-30 | Optical time domain reflectometry |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0516101A Expired - Fee Related GB2416588B (en) | 2002-01-30 | 2003-01-30 | Optical time domain reflectometry |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2416587B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2971108A1 (en) * | 2011-01-31 | 2012-08-03 | France Telecom | SYSTEM FOR DETERMINING A TIME OF PROPAGATION OF AN OPTICAL SIGNAL BETWEEN TWO OPTICAL EQUIPMENTS USING AN OPTICAL LINK |
GB2578116A (en) | 2018-10-16 | 2020-04-22 | Aiq Dienstleistungen Ug Haftungsbeschraenkt | High rate distributed acoustic sensing using high power light pulses |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE123568T1 (en) * | 1990-02-15 | 1995-06-15 | British Telecomm | OPTICAL TEST APPARATUS WITH AN OTDR. |
JPH04274724A (en) * | 1991-03-02 | 1992-09-30 | Fujikura Ltd | Otdr apparatus |
GB9315231D0 (en) * | 1993-07-22 | 1993-09-08 | York Ltd | Optical time domain reflextometry |
-
2003
- 2003-01-30 GB GB0516087A patent/GB2416587B/en not_active Expired - Fee Related
- 2003-01-30 GB GB0516101A patent/GB2416588B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2416588B (en) | 2006-06-21 |
GB0516101D0 (en) | 2005-09-14 |
GB2416587B (en) | 2006-06-21 |
GB2416588A (en) | 2006-02-01 |
GB2416587A (en) | 2006-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20170130 |