CN102197284B - 光纤光学声感测 - Google Patents
光纤光学声感测 Download PDFInfo
- Publication number
- CN102197284B CN102197284B CN200980141858.7A CN200980141858A CN102197284B CN 102197284 B CN102197284 B CN 102197284B CN 200980141858 A CN200980141858 A CN 200980141858A CN 102197284 B CN102197284 B CN 102197284B
- Authority
- CN
- China
- Prior art keywords
- ripple
- optical fiber
- interference
- discrete longitudinal
- sensing part
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- 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
- G01D5/48—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 using wave or particle radiation means
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
- G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
- G01M3/047—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/02—Devices characterised by the use of mechanical means
- G01P3/14—Devices characterised by the use of mechanical means by exciting one or more mechanical resonance systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Optical Transform (AREA)
- Examining Or Testing Airtightness (AREA)
- Pipeline Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Cleaning In General (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0815297.7 | 2008-08-21 | ||
GBGB0815297.7A GB0815297D0 (en) | 2008-08-21 | 2008-08-21 | Conduit monitoring |
PCT/GB2009/002055 WO2010020795A1 (en) | 2008-08-21 | 2009-08-21 | Fibre optic acoustic sensing |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102197284A CN102197284A (zh) | 2011-09-21 |
CN102197284B true CN102197284B (zh) | 2016-10-26 |
Family
ID=39812396
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200980141853.4A Active CN102197294B (zh) | 2008-08-21 | 2009-08-20 | 管道监控 |
CN2009801418727A Active CN102197287B (zh) | 2008-08-21 | 2009-08-20 | 跟踪管道中的对象移动的设备和方法 |
CN200980141858.7A Expired - Fee Related CN102197284B (zh) | 2008-08-21 | 2009-08-21 | 光纤光学声感测 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200980141853.4A Active CN102197294B (zh) | 2008-08-21 | 2009-08-20 | 管道监控 |
CN2009801418727A Active CN102197287B (zh) | 2008-08-21 | 2009-08-20 | 跟踪管道中的对象移动的设备和方法 |
Country Status (12)
Country | Link |
---|---|
US (3) | US8973444B2 (zh) |
EP (3) | EP2326922B1 (zh) |
CN (3) | CN102197294B (zh) |
CA (3) | CA2734820C (zh) |
GB (1) | GB0815297D0 (zh) |
HU (1) | HUE043266T2 (zh) |
LT (1) | LT2326922T (zh) |
PL (1) | PL2326922T3 (zh) |
RU (3) | RU2511228C2 (zh) |
SI (1) | SI2326922T1 (zh) |
TR (1) | TR201903507T4 (zh) |
WO (3) | WO2010020796A1 (zh) |
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