GB2405475A - Acoustic subsea monitoring system - Google Patents

Acoustic subsea monitoring system Download PDF

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Publication number
GB2405475A
GB2405475A GB0426961A GB0426961A GB2405475A GB 2405475 A GB2405475 A GB 2405475A GB 0426961 A GB0426961 A GB 0426961A GB 0426961 A GB0426961 A GB 0426961A GB 2405475 A GB2405475 A GB 2405475A
Authority
GB
United Kingdom
Prior art keywords
monitoring system
equipment
subsea monitoring
hydrophones
monitored
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
Application number
GB0426961A
Other versions
GB2405475B (en
GB0426961D0 (en
Inventor
Arild Haugen Svein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Naxys AS
Original Assignee
Naxys AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Naxys AS filed Critical Naxys AS
Publication of GB0426961D0 publication Critical patent/GB0426961D0/en
Publication of GB2405475A publication Critical patent/GB2405475A/en
Application granted granted Critical
Publication of GB2405475B publication Critical patent/GB2405475B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/8083—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems determining direction of source

Abstract

The invention relates to a subsea monitoring system with at least 3 three-dimensionally placed hydrophones. The hydrophones are fixed at a distance from the equipment to be monitored, so that the sound that is produced by the monitored objects is emitted through the water. The system is direction sensitive and can separate sounds of different equipment from each other, in order to manage simultaneous monitoring of a number of equipment objects of different types.

Description

GB 2405475 A continuation (74) Agent and/or Address for Service: Franks &
Co Jessops Riverside, Brightside Lane,
SHEFFIELD, SO 2RX, United Kingdom
GB0426961A 2002-05-23 2003-05-16 Acoustic subsea monitoring system Expired - Lifetime GB2405475B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20022450A NO20022450A (en) 2002-05-23 2002-05-23 Acoustic underwater monitoring system
PCT/NO2003/000162 WO2003100453A1 (en) 2002-05-23 2003-05-16 Acoustic subsea monitoring system

Publications (3)

Publication Number Publication Date
GB0426961D0 GB0426961D0 (en) 2005-01-12
GB2405475A true GB2405475A (en) 2005-03-02
GB2405475B GB2405475B (en) 2005-09-14

Family

ID=19913656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0426961A Expired - Lifetime GB2405475B (en) 2002-05-23 2003-05-16 Acoustic subsea monitoring system

Country Status (4)

Country Link
AU (1) AU2003241230A1 (en)
GB (1) GB2405475B (en)
NO (1) NO20022450A (en)
WO (1) WO2003100453A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10451760B2 (en) 2013-12-23 2019-10-22 General Electric Company Subsea equipment acoustic monitoring system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK177172B1 (en) * 2010-11-05 2012-04-16 Nkt Cables Group As An integrity monitoring system and a method of monitoring integrity of a stationary structure
GB201212701D0 (en) * 2012-07-17 2012-08-29 Silixa Ltd Structure monitoring

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000718A1 (en) * 1980-08-26 1982-03-04 Hellqvist K Method of detecting,preferably continuously,the presence of cracks,the formation of cracks and the growth of cracks in constructions
US5047990A (en) * 1990-06-01 1991-09-10 The United States Of America As Represented By The Secretary Of The Navy Underwater acoustic data acquisition system
US5155707A (en) * 1991-11-26 1992-10-13 The United States Of America As Represented By The Secretary Of The Navy Omni-directional hydrophone
US5570324A (en) * 1995-09-06 1996-10-29 Northrop Grumman Corporation Underwater sound localization system
US5696736A (en) * 1996-11-27 1997-12-09 The United States Of America As Represented By The Secretary Of The Navy Hydrophone for determining direction of underwater sound

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000718A1 (en) * 1980-08-26 1982-03-04 Hellqvist K Method of detecting,preferably continuously,the presence of cracks,the formation of cracks and the growth of cracks in constructions
US5047990A (en) * 1990-06-01 1991-09-10 The United States Of America As Represented By The Secretary Of The Navy Underwater acoustic data acquisition system
US5155707A (en) * 1991-11-26 1992-10-13 The United States Of America As Represented By The Secretary Of The Navy Omni-directional hydrophone
US5570324A (en) * 1995-09-06 1996-10-29 Northrop Grumman Corporation Underwater sound localization system
US5696736A (en) * 1996-11-27 1997-12-09 The United States Of America As Represented By The Secretary Of The Navy Hydrophone for determining direction of underwater sound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10451760B2 (en) 2013-12-23 2019-10-22 General Electric Company Subsea equipment acoustic monitoring system

Also Published As

Publication number Publication date
GB2405475B (en) 2005-09-14
NO315761B1 (en) 2003-10-20
WO2003100453A1 (en) 2003-12-04
NO20022450D0 (en) 2002-05-23
GB0426961D0 (en) 2005-01-12
NO20022450A (en) 2003-10-20
AU2003241230A1 (en) 2003-12-12

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20100826 AND 20100901

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120524 AND 20120530

PE20 Patent expired after termination of 20 years

Expiry date: 20230515