GB2330656A - Measurement sensor and method - Google Patents

Measurement sensor and method

Info

Publication number
GB2330656A
GB2330656A GB9901080A GB9901080A GB2330656A GB 2330656 A GB2330656 A GB 2330656A GB 9901080 A GB9901080 A GB 9901080A GB 9901080 A GB9901080 A GB 9901080A GB 2330656 A GB2330656 A GB 2330656A
Authority
GB
United Kingdom
Prior art keywords
window
liquid
measurement sensor
transducer
sensor
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
GB9901080A
Other versions
GB2330656B (en
GB9901080D0 (en
Inventor
Hugh Alexander Mackenzie
Scott Freeborn
John Hannigan
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.)
OPTEL INSTR Ltd
Original Assignee
OPTEL INSTR 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 OPTEL INSTR Ltd filed Critical OPTEL INSTR Ltd
Publication of GB9901080D0 publication Critical patent/GB9901080D0/en
Publication of GB2330656A publication Critical patent/GB2330656A/en
Application granted granted Critical
Publication of GB2330656B publication Critical patent/GB2330656B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids

Abstract

A sensor has a cylindrical body (62) the front of which can be inserted in a body of liquid. Laser pulses are coupled via a fibre optic cable (68) and optical assembly (70) to enter the liquid via a window (60). Interaction of the laser energy with an analyte of interest produces acoustic waves in the region adjacent the window (60) which are detected by an acoustic transducer (64). Preferred forms of transducer and their mounting are disclosed.
GB9901080A 1996-07-20 1997-07-11 Measurement method Expired - Fee Related GB2330656B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9615268.1A GB9615268D0 (en) 1996-07-20 1996-07-20 Measurement sensor and method
PCT/GB1997/001890 WO1998003852A1 (en) 1996-07-20 1997-07-11 Measurement sensor and method

Publications (3)

Publication Number Publication Date
GB9901080D0 GB9901080D0 (en) 1999-03-10
GB2330656A true GB2330656A (en) 1999-04-28
GB2330656B GB2330656B (en) 2000-04-12

Family

ID=10797233

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9615268.1A Pending GB9615268D0 (en) 1996-07-20 1996-07-20 Measurement sensor and method
GB9901080A Expired - Fee Related GB2330656B (en) 1996-07-20 1997-07-11 Measurement method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9615268.1A Pending GB9615268D0 (en) 1996-07-20 1996-07-20 Measurement sensor and method

Country Status (3)

Country Link
AU (1) AU3550297A (en)
GB (2) GB9615268D0 (en)
WO (1) WO1998003852A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6594602B1 (en) * 1999-04-23 2003-07-15 Halliburton Energy Services, Inc. Methods of calibrating pressure and temperature transducers and associated apparatus
US7053787B2 (en) 2002-07-02 2006-05-30 Halliburton Energy Services, Inc. Slickline signal filtering apparatus and methods
US20070206193A1 (en) * 2004-01-13 2007-09-06 Glucon, Inc. Photoacoustic Sensor
CN102495028B (en) * 2011-11-18 2013-10-23 江苏大学 Mixing concentration on-line detection method and device thereof
RU2572293C2 (en) * 2014-05-19 2016-01-10 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Optoacoustic analyser of ecological state of environment
CN110118728A (en) * 2018-02-07 2019-08-13 深圳先进技术研究院 A kind of acoustics resolution ratio optoacoustic microscopic system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051371A (en) * 1976-04-26 1977-09-27 Massachusetts Institute Of Technology Opto-acoustic spectroscopy employing amplitude and wavelength modulation
US4303343A (en) * 1980-02-29 1981-12-01 Bell Telephone Laboratories, Incorporated Optoacoustic spectroscopy of condensed matter in bulk form
EP0464902A1 (en) * 1990-06-25 1992-01-08 CISE- Centro Informazioni Studi Esperienze S.p.A. Optoacoustic cell for measuring concentrations of chemical species in fluids in general
EP0478410A1 (en) * 1990-09-24 1992-04-01 THE DOW CHEMICAL COMPANY (a Delaware corporation) Probe for photoacoustic analysis
WO1993022649A2 (en) * 1992-04-23 1993-11-11 Sirraya, Inc. Method and apparatus for material analysis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051371A (en) * 1976-04-26 1977-09-27 Massachusetts Institute Of Technology Opto-acoustic spectroscopy employing amplitude and wavelength modulation
US4303343A (en) * 1980-02-29 1981-12-01 Bell Telephone Laboratories, Incorporated Optoacoustic spectroscopy of condensed matter in bulk form
EP0464902A1 (en) * 1990-06-25 1992-01-08 CISE- Centro Informazioni Studi Esperienze S.p.A. Optoacoustic cell for measuring concentrations of chemical species in fluids in general
EP0478410A1 (en) * 1990-09-24 1992-04-01 THE DOW CHEMICAL COMPANY (a Delaware corporation) Probe for photoacoustic analysis
WO1993022649A2 (en) * 1992-04-23 1993-11-11 Sirraya, Inc. Method and apparatus for material analysis

Also Published As

Publication number Publication date
AU3550297A (en) 1998-02-10
GB2330656B (en) 2000-04-12
WO1998003852A1 (en) 1998-01-29
GB9615268D0 (en) 1996-09-04
GB9901080D0 (en) 1999-03-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070711