BRPI0809804A2 - Sensor de gás e método para a operação de uma fonte de luz para um sensor de gás" - Google Patents

Sensor de gás e método para a operação de uma fonte de luz para um sensor de gás"

Info

Publication number
BRPI0809804A2
BRPI0809804A2 BRPI0809804-2A2A BRPI0809804A BRPI0809804A2 BR PI0809804 A2 BRPI0809804 A2 BR PI0809804A2 BR PI0809804 A BRPI0809804 A BR PI0809804A BR PI0809804 A2 BRPI0809804 A2 BR PI0809804A2
Authority
BR
Brazil
Prior art keywords
gas sensor
operating
light source
sensor
gas
Prior art date
Application number
BRPI0809804-2A2A
Other languages
English (en)
Inventor
Robert E Uber
John H Reno
Original Assignee
Mine Safety Appliances Co
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 Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Publication of BRPI0809804A2 publication Critical patent/BRPI0809804A2/pt

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
    • 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
    • G01N2021/1704—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 in gases
    • 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
    • G01N2201/12723—Self check capacity; automatic, periodic step of checking
    • 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
    • G01N2201/12792—Compensating own radiation in apparatus

Landscapes

  • Physics & Mathematics (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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
BRPI0809804-2A2A 2007-07-03 2008-07-01 Sensor de gás e método para a operação de uma fonte de luz para um sensor de gás" BRPI0809804A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US95832807P 2007-07-03 2007-07-03
US11/899,508 US7835004B2 (en) 2007-07-03 2007-09-06 Gas sensors and methods of controlling light sources therefor
PCT/US2008/008183 WO2009005799A1 (en) 2007-07-03 2008-07-01 Gas sensors and methods of controlling light sources therefore

Publications (1)

Publication Number Publication Date
BRPI0809804A2 true BRPI0809804A2 (pt) 2014-10-07

Family

ID=40221165

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0809804-2A2A BRPI0809804A2 (pt) 2007-07-03 2008-07-01 Sensor de gás e método para a operação de uma fonte de luz para um sensor de gás"

Country Status (7)

Country Link
US (1) US7835004B2 (pt)
EP (2) EP2824442A1 (pt)
CN (1) CN101688830B (pt)
AU (1) AU2008271056B2 (pt)
BR (1) BRPI0809804A2 (pt)
CA (1) CA2691376A1 (pt)
WO (1) WO2009005799A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE534685C2 (sv) * 2008-12-12 2011-11-15 Senseair Ab Gassensorarrangemang för kretskort
GB201018417D0 (en) * 2010-11-01 2010-12-15 Gas Sensing Solutions Ltd Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors
WO2014105071A1 (en) * 2012-12-28 2014-07-03 Halliburton Energy Services, Inc. Pulse width modulation of continuum sources for determination of chemical composition
FR3000548B1 (fr) * 2013-01-02 2017-02-24 Withings Capteur de concentration de co2
TW201430899A (zh) * 2013-01-31 2014-08-01 Oriental System Technology Inc 非色散式紅外線氣體感測器及穩定一個白熾燈之紅外線輻射的方法
WO2016141155A1 (en) 2015-03-05 2016-09-09 Honeywell International Inc. Use of selected glass types and glass thicknesses in the optical path to remove cross sensitivity to water absorption peaks
CN105548024A (zh) * 2016-01-14 2016-05-04 湖北索瑞电气有限公司 一种基于脉冲红外光源的光声光谱气体检测装置
US10620165B2 (en) * 2016-12-29 2020-04-14 Infineon Technologies Ag Photoacoustic gas analyzer for determining species concentrations using intensity modulation
IT201700035910A1 (it) * 2017-03-31 2018-10-01 St Microelectronics Srl Dispositivo optoelettronico per la rilevazione selettiva di composti organici volatili e relativo procedimento di fabbricazione
US11073440B2 (en) * 2018-07-31 2021-07-27 Namuga, Co., Ltd. Hermetic sealed beam projector module and method for manufacturing the same
EP3992612A1 (en) * 2020-10-29 2022-05-04 Infineon Technologies AG Sensor, emitter and related methods

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327139A (en) * 1964-09-01 1967-06-20 Gen Telephone & Elect Control signal generator employing a tunnel diode to regulate the amplitude of the control signal
HU183889B (en) * 1982-04-14 1984-06-28 Koezponti Elelmiszeripari Method and apparatus for measuring the spectrum of materials
WO1985003574A1 (en) 1984-02-07 1985-08-15 Oskar Oehler Device for the photoacoustic detection of gas
DE3431996A1 (de) * 1984-08-31 1986-03-13 Fa. Carl Zeiss, 7920 Heidenheim Stromversorgung fuer strahlungsquellen von frequenz-analogen optischen sensoren
JP2530812B2 (ja) * 1985-12-12 1996-09-04 富士電機株式会社 高周波誘導加熱装置
US4902958A (en) 1988-11-14 1990-02-20 Progressive Dynamics, Inc. Incandescent light regulation and intensity controller
FI921924A (fi) * 1991-05-08 1992-11-09 Nellcor Inc Portabel koldioxidmonitor
SE469701B (sv) * 1992-08-21 1993-08-23 Siemens Elema Ab Spektrofotometrisk metod och spektrofotometer foer att utfoera metoden
CN1120796A (zh) * 1994-10-13 1996-04-17 新典自动化股份有限公司 自动连续调光装置
EP1021936A1 (en) 1997-05-22 2000-07-26 Gregory W. Schmidt An illumination device using pulse width modulation of a led
US20040145741A1 (en) * 2003-01-24 2004-07-29 Honeywell International Inc. Comb etalon fluid analyzer
CN101124853B (zh) * 2004-10-12 2011-07-13 皇家飞利浦电子股份有限公司 发光装置的反馈和控制方法及系统
US7213444B2 (en) * 2005-05-16 2007-05-08 Carthago International Solutions, Inc. Optoacoustic gas sensor
CN101059420A (zh) * 2006-04-18 2007-10-24 明和电子企业有限公司 可延长红外线气体侦测技术所需光源使用寿命的方法
TWI325738B (en) * 2006-07-27 2010-06-01 Benq Corp Power providing system of cold cathode fluorescent lamp and driving method of fluorescent lamp

Also Published As

Publication number Publication date
EP2824442A1 (en) 2015-01-14
WO2009005799A1 (en) 2009-01-08
US20090009769A1 (en) 2009-01-08
AU2008271056A1 (en) 2009-01-08
EP2167939A1 (en) 2010-03-31
CN101688830B (zh) 2013-05-08
US7835004B2 (en) 2010-11-16
CA2691376A1 (en) 2009-01-08
AU2008271056B2 (en) 2013-03-07
CN101688830A (zh) 2010-03-31

Similar Documents

Publication Publication Date Title
BRPI0809804A2 (pt) Sensor de gás e método para a operação de uma fonte de luz para um sensor de gás"
BRPI0820083A2 (pt) fonte luminosa energizada por micro-ondas
GB2450045B (en) Laser driven light source
BRPI0716338A2 (pt) Estrutura de desaclopamento de luz para um dispositivo de iluminaçao
EP1925975A4 (en) DEVICE WITH LIGHT SOURCE
NO20090124L (no) Rørformig led lyskilde
EP2094064A4 (en) LIGHT SOURCE, LIGHT SOURCE SYSTEM AND LIGHTING DEVICE
BRPI0718151A2 (pt) Fonte luminosa para produzir uma saída espectral a uma intensidade de saída
BRPI0909897A2 (pt) sistemema óptico para um dispositivo elétrico de led e sistema ópitico para uma luminária de led.
EP2023414A4 (en) LED LIGHT SOURCE UNIT
DE602007005332D1 (de) Lichtquellenvorrichtung und Fahrzeugbeleuchtungsvorrichtung
BRPI0913776A2 (pt) "aparelho que compreende uma fonte de luz que compreende um diodo emissor de luz e método que compreende a provisão de um diodo emissor de luz"
BRPI0721052A2 (pt) Dispositivo de iluminação e método de iluminação
BR112012005830A2 (pt) dispositivo de iluminação, unidade de lâmpada e método para acionar uma fonte de luz
EP2020015A4 (en) LIGHT SOURCE WITH INTEGRATED LED
DK2158513T3 (da) Strålesamler og en lyskilde med en sådan strålesamler
EP2042918A4 (en) LIGHT SOURCE AND GAS MEASURING DEVICE
DE602008006139D1 (de) Lichtquelle
DE602006006530D1 (de) Lichtquellenvorrichtung
PT2102548T (pt) Componente que tem pelo menos uma fonte de luz
DE602007004702D1 (de) Projektor und Einstellverfahren dafür
DE602006008735D1 (de) Lichtquellenvorrichtung und Endoskopsystem
BRPI1009040A2 (pt) dispositivo emissor de luz, dispositivo de iluminação configurado para iluminar uma área ou um ambiente e método para a manufatura de um dispositivo emissor de luz
EP2034510A4 (en) LIGHT SOURCE DEVICE
EP2062280A4 (en) LIGHT SOURCE WITH SEALING COVER

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]