GB2189110B - Improvements relating to optical fibre hydrophones - Google Patents

Improvements relating to optical fibre hydrophones

Info

Publication number
GB2189110B
GB2189110B GB8606552A GB8606552A GB2189110B GB 2189110 B GB2189110 B GB 2189110B GB 8606552 A GB8606552 A GB 8606552A GB 8606552 A GB8606552 A GB 8606552A GB 2189110 B GB2189110 B GB 2189110B
Authority
GB
United Kingdom
Prior art keywords
optical fibre
improvements relating
hydrophones
fibre hydrophones
relating
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
Application number
GB8606552A
Other versions
GB2189110A (en
Inventor
John Philip Dakin
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB8606552A priority Critical patent/GB2189110B/en
Publication of GB2189110A publication Critical patent/GB2189110A/en
Application granted granted Critical
Publication of GB2189110B publication Critical patent/GB2189110B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
GB8606552A 1986-03-17 1986-03-17 Improvements relating to optical fibre hydrophones Expired GB2189110B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8606552A GB2189110B (en) 1986-03-17 1986-03-17 Improvements relating to optical fibre hydrophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8606552A GB2189110B (en) 1986-03-17 1986-03-17 Improvements relating to optical fibre hydrophones

Publications (2)

Publication Number Publication Date
GB2189110A GB2189110A (en) 1987-10-14
GB2189110B true GB2189110B (en) 1989-11-15

Family

ID=10594741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8606552A Expired GB2189110B (en) 1986-03-17 1986-03-17 Improvements relating to optical fibre hydrophones

Country Status (1)

Country Link
GB (1) GB2189110B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221120B (en) * 1988-07-20 1992-07-15 Plessey Co Plc A hydrophone
GB2312503A (en) * 1996-04-26 1997-10-29 Marconi Gec Ltd Two-part balancing coil assembly compensates for vibration
GB9908075D0 (en) 1999-04-09 1999-06-02 Secr Defence An optical fibre sensor assembly
GB2386183A (en) 2002-03-05 2003-09-10 Qinetiq Ltd Optical sensor assembly
US6779402B2 (en) 2002-10-18 2004-08-24 Northrop Grumman Corporation Method and apparatus for measuring acceleration using a fiber optic accelerometer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1454844A (en) * 1973-03-27 1976-11-03 Inst Francais Du Petrole Pressure sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1454844A (en) * 1973-03-27 1976-11-03 Inst Francais Du Petrole Pressure sensor

Also Published As

Publication number Publication date
GB2189110A (en) 1987-10-14

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930317