GB201018417D0 - Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors - Google Patents

Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors

Info

Publication number
GB201018417D0
GB201018417D0 GBGB1018417.4A GB201018417A GB201018417D0 GB 201018417 D0 GB201018417 D0 GB 201018417D0 GB 201018417 A GB201018417 A GB 201018417A GB 201018417 D0 GB201018417 D0 GB 201018417D0
Authority
GB
United Kingdom
Prior art keywords
leds
light pulses
optical absorption
gas sensors
generating light
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.)
Ceased
Application number
GBGB1018417.4A
Other languages
English (en)
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.)
Gas Sensing Solutions Ltd
Original Assignee
Gas Sensing Solutions 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 Gas Sensing Solutions Ltd filed Critical Gas Sensing Solutions Ltd
Priority to GBGB1018417.4A priority Critical patent/GB201018417D0/en
Publication of GB201018417D0 publication Critical patent/GB201018417D0/en
Priority to US13/882,585 priority patent/US9410886B2/en
Priority to EP11791616.3A priority patent/EP2635894B1/en
Priority to JP2013535514A priority patent/JP5934713B2/ja
Priority to CA2853963A priority patent/CA2853963C/en
Priority to PCT/GB2011/052111 priority patent/WO2012059744A1/en
Priority to CN201180052287.7A priority patent/CN103299174B/zh
Ceased 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
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J11/00—Measuring the characteristics of individual optical pulses or of optical pulse trains
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/069—Supply of sources
    • G01N2201/0696—Pulsed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/121—Correction signals
    • G01N2201/1211—Correction signals for temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/127—Calibration; base line adjustment; drift compensation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GBGB1018417.4A 2010-11-01 2010-11-01 Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors Ceased GB201018417D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GBGB1018417.4A GB201018417D0 (en) 2010-11-01 2010-11-01 Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors
US13/882,585 US9410886B2 (en) 2010-11-01 2011-10-28 Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors
EP11791616.3A EP2635894B1 (en) 2010-11-01 2011-10-28 Apparatus and method for generating light pulses from leds in optical absorption gas sensors
JP2013535514A JP5934713B2 (ja) 2010-11-01 2011-10-28 光吸収ガスセンサ内のｌｅｄから光パルスを生成するための装置と方法
CA2853963A CA2853963C (en) 2010-11-01 2011-10-28 Apparatus and method for generating light pulses from leds in optical absorption gas sensors
PCT/GB2011/052111 WO2012059744A1 (en) 2010-11-01 2011-10-28 Apparatus and method for generating light pulses from leds in optical absorption gas sensors
CN201180052287.7A CN103299174B (zh) 2010-11-01 2011-10-28 用于从光学吸收气体传感器中的led生成光脉冲的装置及方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1018417.4A GB201018417D0 (en) 2010-11-01 2010-11-01 Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors

Publications (1)

Publication Number Publication Date
GB201018417D0 true GB201018417D0 (en) 2010-12-15

Family

ID=43401608

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB1018417.4A Ceased GB201018417D0 (en) 2010-11-01 2010-11-01 Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors

Country Status (7)

Country Link
US (1) US9410886B2 (enExample)
EP (1) EP2635894B1 (enExample)
JP (1) JP5934713B2 (enExample)
CN (1) CN103299174B (enExample)
CA (1) CA2853963C (enExample)
GB (1) GB201018417D0 (enExample)
WO (1) WO2012059744A1 (enExample)

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US20150196239A1 (en) * 2014-01-10 2015-07-16 Covidien Lp Method and apparatus for driving an emitter in a medical sensor
CN103868877B (zh) * 2014-03-14 2016-04-20 刘永平 一种红外气体传感器及检测方法
GB2533125A (en) * 2014-12-10 2016-06-15 Cambridge Respiratory Innovations Ltd Capnometer
EP3559637A1 (en) * 2016-12-23 2019-10-30 Eaton Intelligent Power Limited Gas sensor
EP3361232A1 (en) * 2017-02-09 2018-08-15 Koninklijke Philips N.V. Optical particle sensor and sensing method
US10118701B2 (en) * 2017-03-08 2018-11-06 B/E Aerospace, Inc. Aircraft cabin LED lighting system and lighting assembly
US11391476B2 (en) 2018-07-23 2022-07-19 Novinium, Inc. Method of identifying burning by monitoring water level and combustion analytes
US11231405B2 (en) 2018-10-16 2022-01-25 Novinium, Inc. Calibrationless operation method
US11054404B2 (en) 2018-10-16 2021-07-06 Novinium, Inc. Methods of using dilution of a first type to calibrate one or more sensors
US11231403B2 (en) 2018-10-16 2022-01-25 Novinium, Inc. Methods of using dilution of a second type to calibrate one or more sensors
US11035770B2 (en) 2018-10-16 2021-06-15 Novinium, Inc. Methods of using component mass balance to evaluate manhole events
US11208783B2 (en) * 2018-10-16 2021-12-28 Novintum, Inc. Methods of using triangulation to locate a manhole event in a system of underground vaults
EP4017392A1 (en) * 2019-11-04 2022-06-29 Alcon Inc. Measurement of pulsed laser output using optical detection of duty cycle
JP2021148784A (ja) 2020-03-16 2021-09-27 旭化成エレクトロニクス株式会社 ガスセンサモジュール
WO2022150744A1 (en) * 2021-01-11 2022-07-14 Ysi, Inc. Induced crosstalk circuit for improved sensor linearity
AU2023231223B2 (en) * 2022-03-09 2025-01-30 Integrity Communications Solutions, Inc. In-line gas sensor and sensing methods

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Also Published As

Publication number Publication date
CA2853963C (en) 2018-08-21
JP5934713B2 (ja) 2016-06-15
US20130271751A1 (en) 2013-10-17
US9410886B2 (en) 2016-08-09
WO2012059744A1 (en) 2012-05-10
EP2635894B1 (en) 2020-01-15
EP2635894A1 (en) 2013-09-11
CA2853963A1 (en) 2012-05-10
JP2013545094A (ja) 2013-12-19
CN103299174A (zh) 2013-09-11
CN103299174B (zh) 2016-04-06

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Legal Events

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AT Applications terminated before publication under section 16(1)