JP4671241B2 - Irセンサ、とりわけ、co2センサ - Google Patents
Irセンサ、とりわけ、co2センサ Download PDFInfo
- Publication number
- JP4671241B2 JP4671241B2 JP2007515776A JP2007515776A JP4671241B2 JP 4671241 B2 JP4671241 B2 JP 4671241B2 JP 2007515776 A JP2007515776 A JP 2007515776A JP 2007515776 A JP2007515776 A JP 2007515776A JP 4671241 B2 JP4671241 B2 JP 4671241B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- sensor
- detector
- radiation
- pass band
- 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 - Fee Related
Links
- 230000005855 radiation Effects 0.000 claims description 36
- 238000011156 evaluation Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 230000003595 spectral effect Effects 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 238000000862 absorption spectrum Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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
- G01N21/25—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
-
- 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
- G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
- G01J3/36—Investigating two or more bands of a spectrum by separate detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1213—Filters in general, e.g. dichroic, band
-
- 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
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/3166—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using separate detectors and filters
-
- 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
- G01N2021/3531—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 without instrumental source, i.e. radiometric
-
- 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
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
Description
S1=a(ICO2+In)
S2=a(Iref+In)
ここで、ICO2は、例えば、電流または電圧といった、IR放射線に関する情報を含む電気量であり、一方、Irefは、IR放射線によって影響されない基準量である。Inについては、添字nはノイズを表わしている。S1とS2の間に差が生じると(そのための、差生成装置16の概略が示されている)、下記の量が求められる。
S1−S2=a(ICO2−Iref)
この式では、ノイズ成分が無くなっている。
S3=(S1−S2)/S1=a(ICO2−Iref)/a(ICO2+In)
Claims (6)
- 下流に検出装置が配置されたフィルタ装置と、前記検出装置に接続された評価装置を有し、CO 2 を検出するCO 2 センサを含むIRセンサであって、
前記フィルタ装置は、それぞれが通過帯域を持つ帯域通過フィルタとして構成された第1のフィルタと第2のフィルタを有し、
前記第1のフィルタは所定のIR帯域を通過させるのに対し前記第2のフィルタは前記所定の1R帯域を通過させず、
前記検出装置は、第1の検出器と第2の検出器を有し、
それぞれの検出器は前記第1のフィルタおよび前記第2のフィルタのそれぞれと関連し、
前記第2のフィルタの通過帯域は、前記第1のフィルタの通過帯域の一部であり、
前記評価装置は、前記第1の検出器および前記第2の検出器の信号の差を求め、
前記第1のフィルタおよび前記第2のフィルタは直列をなすフィルタ素子によって形成され、
フィルタ素子の1つは両方のフィルタに対して同一であるとともに、前記両方のフィルタにおける短波長側の共通遮断波長を決定し、
前記評価装置は、前記第1の検出器および前記第2の検出器の信号の前記差を前記第1の検出器および前記第2の検出器のうちの一方の信号に正規化する
ことを特徴とするIRセンサ。 - 前記第1のフィルタ(9)の通過帯域(F1)が、前記第2のフィルタ(10)の通過帯域(F2)より0.3〜0.7μm広いことを特徴とする、請求項1に記載のIRセンサ。
- 前記第1のフィルタ(9)の通過帯域が、3.6〜4.5μmの範囲内であり、前記第2のフィルタ(10)の通過帯域(F2)が、3.6〜4.0μmの範囲内であることを特徴とする、請求項2に記載のIRセンサ。
- 環境からの自然IR放射線(3)を利用することを特徴とする、請求項1〜3の任意の1つに記載のIRセンサ。
- 前記評価装置(8)によって、前記第1の検出器(14)の信号(S1)に対して前記差が正規化されることを特徴とする、請求項1〜4の任意の1つに記載のIRセンサ。
- 前記フィルタ(9、10)にCaF2 、ゲルマニウム、または、シリコンが含まれることを特徴とする、請求項1〜5の任意の1つに記載のIRセンサ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004028433A DE102004028433B4 (de) | 2004-06-14 | 2004-06-14 | IR-Sensor, insbesondere CO2-Sensor |
PCT/DK2005/000381 WO2005121751A1 (de) | 2004-06-14 | 2005-06-10 | Ir-sensor, insbesondere co2-sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008502883A JP2008502883A (ja) | 2008-01-31 |
JP4671241B2 true JP4671241B2 (ja) | 2011-04-13 |
Family
ID=34969745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007515776A Expired - Fee Related JP4671241B2 (ja) | 2004-06-14 | 2005-06-10 | Irセンサ、とりわけ、co2センサ |
Country Status (13)
Country | Link |
---|---|
US (1) | US7635845B2 (ja) |
EP (1) | EP1759187B1 (ja) |
JP (1) | JP4671241B2 (ja) |
KR (1) | KR100887208B1 (ja) |
CN (1) | CN100541174C (ja) |
AU (1) | AU2005252746B2 (ja) |
BR (1) | BRPI0512088A (ja) |
CA (1) | CA2569164C (ja) |
DE (1) | DE102004028433B4 (ja) |
MX (1) | MXPA06014559A (ja) |
RU (1) | RU2339020C1 (ja) |
WO (1) | WO2005121751A1 (ja) |
ZA (1) | ZA200609917B (ja) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017521A1 (de) | 2008-04-04 | 2009-10-15 | Rheinmetall Landsysteme Gmbh | ABC-dichtes Fahrzeug mit CO2-Sensoren sowie Verfahren zur Innenraumluftgüteregelung |
WO2010118749A1 (en) * | 2009-04-17 | 2010-10-21 | Danfoss Ixa A/S | Gas sensor with filtering sight glass |
BRPI1016187A2 (pt) * | 2009-04-17 | 2016-04-19 | Danfoss Ixa As | sensor de gás que utiliza filtros de passagem de banda para medir a temperatura de um emissor |
KR101385903B1 (ko) * | 2009-04-17 | 2014-04-15 | 단포스 아이엑스에이 에이/에스 | 대역 통과 필터를 이용하는 센서 |
KR101372989B1 (ko) * | 2009-12-09 | 2014-03-12 | 파나소닉 주식회사 | 적외선 불꽃 검출기 |
WO2011101525A1 (en) * | 2010-02-19 | 2011-08-25 | Vaisala Oyj | Method for calibration of a co2 concentration sensor and a measuring device |
JP5573340B2 (ja) * | 2010-05-07 | 2014-08-20 | 日本電気株式会社 | ガス検知装置およびガス検知方法 |
KR102371413B1 (ko) | 2014-06-19 | 2022-03-04 | 단포스 아이엑스에이 에이/에스 | 퍼지 가스 보호를 구비한 가스 센서용 프로브 |
CN106537117B (zh) | 2014-06-19 | 2019-09-10 | 丹佛斯Ixa有限公司 | 具有气体分离采样气流的气体传感器的探头 |
CN104359852A (zh) * | 2014-11-25 | 2015-02-18 | 云南无线电有限公司 | 一种co、co2、so2三组分红外集成气体传感器 |
EP3265782A1 (en) * | 2015-03-02 | 2018-01-10 | Flir Systems AB | Wavelength band based passive infrared gas imaging |
US11249016B2 (en) | 2015-03-02 | 2022-02-15 | Flir Systems Ab | Wavelength band based passive infrared gas imaging |
EP3265996A1 (en) * | 2015-03-02 | 2018-01-10 | Flir Systems AB | Quantifying gas in passive optical gas imaging |
PL3298365T3 (pl) * | 2015-05-22 | 2019-11-29 | Irnova Ab | Detektor obrazowania w podczerwieni |
GB2544040B (en) * | 2015-10-19 | 2018-03-14 | Ffe Ltd | Improvements in or relating to flame detectors and associated methods |
US10768101B2 (en) | 2016-05-09 | 2020-09-08 | Infrasolid Gmbh | Measuring device and method for sensing different gases and gas concentrations |
DE102016108545B4 (de) * | 2016-05-09 | 2021-02-04 | Lnfrasolid Gmbh | NDIR-Gassensor und Verfahren zu dessen Kalibrierung |
EP3330684B1 (de) * | 2016-12-05 | 2019-08-14 | Sick Ag | Verfahren zum sicherstellen eines modulationsbereichs |
US10760803B2 (en) | 2017-11-21 | 2020-09-01 | Emerson Climate Technologies, Inc. | Humidifier control systems and methods |
US11486593B2 (en) | 2018-04-20 | 2022-11-01 | Emerson Climate Technologies, Inc. | Systems and methods with variable mitigation thresholds |
EP3781879A4 (en) | 2018-04-20 | 2022-01-19 | Emerson Climate Technologies, Inc. | SYSTEMS AND METHODS WITH VARIABLE ATTENUATION THRESHOLDS |
US11371726B2 (en) | 2018-04-20 | 2022-06-28 | Emerson Climate Technologies, Inc. | Particulate-matter-size-based fan control system |
US11226128B2 (en) | 2018-04-20 | 2022-01-18 | Emerson Climate Technologies, Inc. | Indoor air quality and occupant monitoring systems and methods |
WO2019204792A1 (en) | 2018-04-20 | 2019-10-24 | Emerson Climate Technologies, Inc. | Coordinated control of standalone and building indoor air quality devices and systems |
KR102026471B1 (ko) * | 2018-07-30 | 2019-09-27 | 한국수력원자력 주식회사 | 감마선 검출기 |
US11740179B2 (en) * | 2020-02-07 | 2023-08-29 | Lumileds Llc | Gas sensing system having quadric reflective surface |
US11566519B2 (en) | 2020-03-12 | 2023-01-31 | Saudi Arabian Oil Company | Laser-based monitoring tool |
BR202021012321U2 (pt) * | 2021-06-22 | 2023-01-03 | Jose Marcos Nabhan | Sensor de co2 para descontaminação da cabine de automóveis e emissão de alerta |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199657U (ja) * | 1985-06-04 | 1986-12-13 | ||
JPH05500112A (ja) * | 1989-09-01 | 1993-01-14 | クリティコン,インコーポレーテッド | シャッタレス式光学的安定化カプノグラフ |
JPH0612949U (ja) * | 1991-12-30 | 1994-02-18 | 日新電機株式会社 | ガス濃度測定装置 |
JPH09251109A (ja) * | 1996-03-15 | 1997-09-22 | Omron Corp | 両面多層膜基板を含む光学装置及びその製造方法、センサ装置並びに両面多層膜基板 |
JP2000503122A (ja) * | 1996-01-10 | 2000-03-14 | エンジェルハード・センサー・テクノロジーズ・インコーポレイテッド | 受動赤外線分析ガスセンサおよびこれを応用したマルチチャンネル検知装置 |
JP2002005831A (ja) * | 2000-06-21 | 2002-01-09 | Horiba Ltd | 吸光分析装置 |
JP2002539446A (ja) * | 1999-03-17 | 2002-11-19 | ユニバーシティー オブ ヴァージニア パテント ファウンデーション | 化学物質の受動的遠隔センサー |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB930698A (en) * | 1961-03-16 | 1963-07-10 | Parsons & Co Sir Howard G | Improvements in and relating to apparatus for the analysis of substances by absorption of infra-red radiation |
FR1465853A (fr) * | 1965-02-24 | 1967-01-13 | Mine Safety Appliances Co | Procédé et dispositif pour l'analyse d'un fluide par absorption d'infra-rouge |
GB8515519D0 (en) * | 1985-06-19 | 1985-07-24 | Graviner Ltd | Gas detection |
US4785184A (en) * | 1986-05-27 | 1988-11-15 | Spectral Sciences, Inc. | Infrared trace element detection system |
FR2637379B1 (fr) * | 1988-09-30 | 1990-12-21 | Aerospatiale | Dispositif de fixation d'un organe optique tel qu'un filtre sur un support |
US5081998A (en) * | 1989-09-01 | 1992-01-21 | Critikon, Inc. | Optically stabilized infrared energy detector |
GB9008908D0 (en) | 1990-04-20 | 1990-06-20 | Emi Plc Thorn | Thermal detection arrangement |
US5612676A (en) | 1991-08-14 | 1997-03-18 | Meggitt Avionics, Inc. | Dual channel multi-spectrum infrared optical fire and explosion detection system |
EP0544962B1 (fr) * | 1991-12-04 | 1997-03-05 | Bertin & Cie | Procédé et dispositif de détection optique à distance d'un gaz présent dans une zone d'espace observée |
US5800360A (en) * | 1992-02-11 | 1998-09-01 | Spectrum Medical Technologies, Inc. | Apparatus and method for respiratory monitoring |
DE4319567C2 (de) * | 1993-06-08 | 1997-12-18 | Hartmann & Braun Ag | Einrichtung zum fotometrischen Nachweis von Meßgaskomponenten |
FI95322C (fi) * | 1994-03-02 | 1996-01-10 | Instrumentarium Oy | Spektroskooppinen mittausanturi väliaineiden analysointiin |
JP3078983B2 (ja) * | 1994-03-30 | 2000-08-21 | 株式会社堀場製作所 | 油分濃度計 |
US5995008A (en) * | 1997-05-07 | 1999-11-30 | Detector Electronics Corporation | Fire detection method and apparatus using overlapping spectral bands |
KR100232166B1 (ko) * | 1997-12-29 | 1999-12-01 | 구자홍 | 이산화탄소 가스 검출기 |
DE19835335C1 (de) * | 1998-08-05 | 1999-11-25 | Draeger Sicherheitstech Gmbh | Infrarotoptischer Gassensor |
EP1151276A4 (en) | 1998-12-11 | 2003-07-23 | Envirotest Systems Inc | DEVICE FOR MEASURING THE OPACITY OF THE EMISSIONS OF THE ENGINE |
KR20000051474A (ko) * | 1999-01-22 | 2000-08-16 | 구자홍 | 광학형 가스 검출기 |
US6369716B1 (en) * | 2000-12-01 | 2002-04-09 | Johnson Controls Technology Company | System and method for controlling air quality in a room |
JP3471342B2 (ja) * | 2001-11-30 | 2003-12-02 | 国際技術開発株式会社 | 炎感知器 |
WO2003067227A1 (en) * | 2002-02-05 | 2003-08-14 | Detector Electronics Corporation | Method and apparatus for open-path gas detection |
CN1206524C (zh) * | 2002-03-14 | 2005-06-15 | 北京航空航天大学 | 无气泵式红外二氧化碳浓度分析方法及装置 |
-
2004
- 2004-06-14 DE DE102004028433A patent/DE102004028433B4/de not_active Expired - Fee Related
-
2005
- 2005-06-10 BR BRPI0512088-8A patent/BRPI0512088A/pt active Search and Examination
- 2005-06-10 CA CA2569164A patent/CA2569164C/en not_active Expired - Fee Related
- 2005-06-10 EP EP05748773.8A patent/EP1759187B1/de not_active Not-in-force
- 2005-06-10 CN CNB2005800195653A patent/CN100541174C/zh not_active Expired - Fee Related
- 2005-06-10 US US11/629,420 patent/US7635845B2/en active Active
- 2005-06-10 MX MXPA06014559A patent/MXPA06014559A/es active IP Right Grant
- 2005-06-10 WO PCT/DK2005/000381 patent/WO2005121751A1/de active Application Filing
- 2005-06-10 JP JP2007515776A patent/JP4671241B2/ja not_active Expired - Fee Related
- 2005-06-10 RU RU2007100222/28A patent/RU2339020C1/ru active
- 2005-06-10 AU AU2005252746A patent/AU2005252746B2/en not_active Ceased
- 2005-06-10 KR KR1020077000803A patent/KR100887208B1/ko active IP Right Grant
-
2006
- 2006-11-28 ZA ZA200609917A patent/ZA200609917B/xx unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199657U (ja) * | 1985-06-04 | 1986-12-13 | ||
JPH05500112A (ja) * | 1989-09-01 | 1993-01-14 | クリティコン,インコーポレーテッド | シャッタレス式光学的安定化カプノグラフ |
JPH0612949U (ja) * | 1991-12-30 | 1994-02-18 | 日新電機株式会社 | ガス濃度測定装置 |
JP2000503122A (ja) * | 1996-01-10 | 2000-03-14 | エンジェルハード・センサー・テクノロジーズ・インコーポレイテッド | 受動赤外線分析ガスセンサおよびこれを応用したマルチチャンネル検知装置 |
JPH09251109A (ja) * | 1996-03-15 | 1997-09-22 | Omron Corp | 両面多層膜基板を含む光学装置及びその製造方法、センサ装置並びに両面多層膜基板 |
JP2002539446A (ja) * | 1999-03-17 | 2002-11-19 | ユニバーシティー オブ ヴァージニア パテント ファウンデーション | 化学物質の受動的遠隔センサー |
JP2002005831A (ja) * | 2000-06-21 | 2002-01-09 | Horiba Ltd | 吸光分析装置 |
Also Published As
Publication number | Publication date |
---|---|
ZA200609917B (en) | 2009-05-27 |
AU2005252746B2 (en) | 2010-08-05 |
KR100887208B1 (ko) | 2009-03-06 |
JP2008502883A (ja) | 2008-01-31 |
BRPI0512088A (pt) | 2008-02-06 |
CA2569164A1 (en) | 2005-12-22 |
RU2339020C1 (ru) | 2008-11-20 |
EP1759187A1 (de) | 2007-03-07 |
EP1759187B1 (de) | 2015-03-04 |
US20080283753A1 (en) | 2008-11-20 |
AU2005252746A1 (en) | 2005-12-22 |
CN1969180A (zh) | 2007-05-23 |
CN100541174C (zh) | 2009-09-16 |
KR20070024724A (ko) | 2007-03-02 |
US7635845B2 (en) | 2009-12-22 |
DE102004028433A1 (de) | 2006-01-05 |
MXPA06014559A (es) | 2007-05-16 |
WO2005121751A1 (de) | 2005-12-22 |
CA2569164C (en) | 2011-08-23 |
DE102004028433B4 (de) | 2006-08-31 |
RU2007100222A (ru) | 2008-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4671241B2 (ja) | Irセンサ、とりわけ、co2センサ | |
US9329121B2 (en) | Sensor utilizing band pass filters | |
US5797682A (en) | Device and method for measuring temperture of vehicle exhaust | |
Hodgkinson et al. | Non-dispersive infra-red (NDIR) measurement of carbon dioxide at 4.2 μm in a compact and optically efficient sensor | |
US6843102B1 (en) | Gas sensor arrangement | |
US20100313572A1 (en) | Optical interrogation sensors for combustion control | |
US20080114552A1 (en) | Dynamic Measured-Value Filter For a Gas Sensor Arrangement | |
WO2010118749A1 (en) | Gas sensor with filtering sight glass | |
EP2419703B1 (en) | Gas sensor utilizing bandpass filters to measure temperature of an emitter | |
Hodgkinson et al. | A low cost, optically efficient carbon dioxide sensor based on nondispersive infra-red (NDIR) measurement at 4.2 μm | |
JPH03221843A (ja) | 光による分析計 | |
US20150268158A1 (en) | Gas Sensor and Method for Sensing Presence of Ethanol Vapor in a Cabin | |
US20040203169A1 (en) | Device and process for determining the concentration of at least one gas component in a breathing gas mixture | |
Jensen et al. | IR sensor especially a COsensor | |
Ashraf et al. | Evaluation of a CO 2 sensitive thermopile with an integrated multilayered infrared absorber by using a long path length NDIR platform | |
Bondarchuk et al. | Optic-absorption method of concentration measurements for gas-analyzer development | |
KR20060088375A (ko) | 광학형 가스 검출기 | |
ECT Team | Infrared Gas Sensor | |
Ito et al. | Sensing system for inner temperature of combustion gas by using infrared CT |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091126 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091222 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20100323 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20100330 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100422 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100629 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100924 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20101112 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101130 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20101112 |
|
AA92 | Notification that decision to refuse application was cancelled |
Free format text: JAPANESE INTERMEDIATE CODE: A971092 Effective date: 20101214 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110111 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110112 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4671241 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140128 Year of fee payment: 3 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |