JP5841542B2 - 放射線ガイドを有するガスセンサ - Google Patents
放射線ガイドを有するガスセンサ Download PDFInfo
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- JP5841542B2 JP5841542B2 JP2012548482A JP2012548482A JP5841542B2 JP 5841542 B2 JP5841542 B2 JP 5841542B2 JP 2012548482 A JP2012548482 A JP 2012548482A JP 2012548482 A JP2012548482 A JP 2012548482A JP 5841542 B2 JP5841542 B2 JP 5841542B2
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- 230000005855 radiation Effects 0.000 title description 541
- 239000000463 material Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 110
- 238000005259 measurement Methods 0.000 description 27
- 239000012491 analyte Substances 0.000 description 20
- 238000009792 diffusion process Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 125000006850 spacer group Chemical group 0.000 description 13
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 12
- 229910052737 gold Inorganic materials 0.000 description 11
- 239000010931 gold Substances 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- LVQULNGDVIKLPK-UHFFFAOYSA-N aluminium antimonide Chemical compound [Sb]#[Al] LVQULNGDVIKLPK-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 description 1
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 230000008021 deposition Effects 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- 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
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
-
- 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
- G01N2201/063—Illuminating optical parts
- G01N2201/0636—Reflectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
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- 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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
図6を参照すると、使用時に約4.3μmにピーク強度を有する放射線を発射する第1のアンチモン化アルミニウムインジウム発光ダイオード100が1.6mm厚の繊維ガラス樹脂プリント回路板104の第1の面102上に設けられる。第1の発光ダイオードは、欧州特許第0 864 180号明細書、欧州特許第0 992 094号明細書、Haigh, M.K.et al.,Applied Physics Letters,vol.90,231116(2007)に従って形成される。この第1の発光ダイオードは、フォトダイオード110により検出される電磁放射線を供給するために、マイクロコントローラ108の制御下で電子回路106により駆動される。フォトダイオードもまたアンチモン化アルミニウムインジウに基づいており、プリント回路板112に搭載されるが、これは、図1〜図5のガスセンサと共に使用されるとき、発光ダイオードに隣接する第1の発光ダイオードが搭載されるプリント回路板の領域が好ましく、プリント回路板上に印刷された電子回路を介して発光ダイオードとフォトダイオードとの間の熱伝達を容易にする。
基準測定を得るための第2の別の手法では、我々は、アンチモン化アルミニウムインジウムベースのフォトダイオードは従来の発光ダイオード駆動回路を使用して駆動されると光を発射するということを発見した。同様に、上に引用した欧州特許第0 864 180号明細書、欧州特許第0 992 094号明細書、Haigh,M.K.et al.,Applied Physics Letters,vol.90,231116 (2007)によるアンチモン化アルミニウムインジウムベースの発光ダイオードは、従来のフォトダイオード増幅器回路に取り付けることによりフォトダイオードとして使用されることができる。
Claims (23)
- 光源と、前記光源により発射される光を検出するように動作可能な検出器と、前記光源と前記検出器との間に光を誘導するように動作可能な光ガイドとを含むガスセンサであって、
前記光ガイドはほぼ矩形断面を有する曲線部を含み、
前記光ガイドの前記曲線部は前記矩形断面の辺の1つに平行な軸の周囲で湾曲し、
前記ほぼ矩形断面は、大きい寸法と小さい寸法を有するほぼ長方形の断面であり、
前記光ガイドの前記曲線部は前記ほぼ矩形の断面の大きい寸法に平行な軸の周囲で湾曲し、
前記光ガイドは前記光源により発射される光を少なくとも部分的に平行にするように動作可能なコリメータを含み、前記光ガイドは大きい寸法を含み、前記光源により発射される光は主に前記光ガイドの前記大きい寸法に平行な単一方向に前記コリメータによりほぼ平行にされる、ガスセンサ。 - 前記コリメータは放物面反射器を含む、請求項1に記載のガスセンサ。
- 前記光ガイドは前記検出器上に光を集光するように動作可能な集光装置を含む、請求項1または2に記載のガスセンサ。
- 前記光ガイドは大きい寸法を含み、
前記光ガイドから前記集光装置に入射する光は前記光ガイドの前記大きい寸法に平行な単一方向において前記検出器上に主に集光される、請求項3に記載のガスセンサ。 - 前記集光装置は放物面反射器を含む、請求項3または4に記載のガスセンサ。
- 前記光ガイドは、前記光源により発射される光を反射するように動作可能であり入射光の少なくとも1%を吸収する材料で形成された内面を有する、請求項1乃至5のいずれか一項に記載のガスセンサ。
- 前記光源と前記検出器は互いに隣接する、請求項1乃至6のいずれか一項に記載のガスセンサ。
- 前記光ガイドに沿った前記光源と前記検出器との間の光の最短経路長は前記光源と前記検出器との間の間隔の少なくとも10倍である、請求項1乃至7のいずれか一項に記載のガスセンサ。
- 前記光源と前記検出器は互いに熱的に連通する、請求項1乃至8のいずれか一項に記載のガスセンサ。
- 前記光ガイドは複数の前記曲線部を含む、請求項1乃至9のいずれか一項に記載のガスセンサ。
- 前記光ガイドは逆向きに湾曲する第1と第2の曲線部を含む、請求項10に記載のガスセンサ。
- 前記光ガイドは、第1の向きに湾曲する第1の曲線部と、前記第1の曲線部よりさらに前記光ガイドに沿って(前記光源から前記検出器まで測定された)第2の逆向きに湾曲する第2の曲線部と、前記第2の曲線部よりさらに前記光ガイドに沿って(前記光源から前記検出器まで測定された)前記第1の向きに湾曲する第3の曲線部と、を含む、請求項11に記載のガスセンサ。
- 前記第1と第3の曲線部はそれぞれ少なくとも10°だけ前記第1の向きに湾曲し、
前記第2の曲線部は少なくとも180°の間ほぼ一定の湾曲で前記第1の向きに対して反対の向きに湾曲する、請求項12に記載のガスセンサ。 - 前記光ガイドは対称面を有する、請求項1乃至13のいずれか一項に記載のガスセンサ。
- 前記光源と前記検出器との間で少なくとも90°だけ平均照射方向を変える請求項1乃至14のいずれか一項に記載のガスセンサ。
- 前記光ガイドの前記湾曲全体の大きさは少なくとも90°であり720°未満である、請求項1乃至15のいずれか一項に記載のガスセンサ。
- 前記光ガイドの前記曲線部または各曲線部は通常、内壁が前記曲線部の内側の弧線を描き対向外壁が前記曲線部の外側の弧線を描くように前記内壁と前記対向外壁とを含み、
1つまたは複数の前記曲線部の前記内壁は前記光ガイド内にガス試料を入れるために吸気口を含む、請求項1乃至16のいずれか一項に記載のガスセンサ。 - 前記光ガイドは前記光源および/または検出器に隣接する凹部を有し、
前記光源および/または検出器は光ガイド対向面と前記それぞれの光ガイド対向面上の電気的接続とを有する、請求項1乃至17のいずれか一項に記載のガスセンサ。 - 前記光ガイドを含むまたは前記光ガイドからなる光ガイド要素と前記光源および/または前記検出器を含む支持要素とを含む請求項1乃至18のいずれか一項に記載のガスセンサであって、
前記光ガイド要素または前記支持要素は、前記光ガイド要素に対し前記支持要素を位置決めしこれにより前記検出器と前記光源を前記光ガイドに整列させるように構成された複数の位置決め要素を含む、ガスセンサ。 - 前記光ガイドまたは前記支持要素は3つの位置決め要素を含む、請求項19に記載のガスセンサ。
- 前記光ガイドまたは前記支持要素は前記光ガイド要素に向けて前記支持要素を付勢する付勢手段を含む、請求項19または20に記載のガスセンサ。
- 前記光源と前記検出器とは互いに隣接し、
前記光ガイドは、
前記光源に隣接するコリメータと、
第1の向きに湾曲する第1の曲線部と、
前記第1の向きに対して反対の向きに湾曲し、かつ前記第1の曲線部に隣接する第2の曲線部と、
前記第2の向きに対して反対の向きに湾曲し、かつ前記第2の曲線部に隣接する第3の曲線部と、
前記第3の曲線部および前記検出器に隣接する集光装置と、を含む、請求項1に記載のガスセンサ。 - 前記第2の曲線部は、部分円を描く、請求項22に記載のガスセンサ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB201000756A GB201000756D0 (en) | 2010-01-18 | 2010-01-18 | Gas sensor with radiation guide |
GB1000756.5 | 2010-01-18 | ||
PCT/GB2011/050077 WO2011086394A1 (en) | 2010-01-18 | 2011-01-18 | Gas sensor with radiation guide |
Publications (2)
Publication Number | Publication Date |
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JP2013517467A JP2013517467A (ja) | 2013-05-16 |
JP5841542B2 true JP5841542B2 (ja) | 2016-01-13 |
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JP2012548482A Expired - Fee Related JP5841542B2 (ja) | 2010-01-18 | 2011-01-18 | 放射線ガイドを有するガスセンサ |
Country Status (7)
Country | Link |
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US (1) | US9035256B2 (ja) |
EP (1) | EP2526404B1 (ja) |
JP (1) | JP5841542B2 (ja) |
CN (1) | CN102869980B (ja) |
CA (1) | CA2787221C (ja) |
GB (1) | GB201000756D0 (ja) |
WO (1) | WO2011086394A1 (ja) |
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-
2010
- 2010-01-18 GB GB201000756A patent/GB201000756D0/en not_active Ceased
-
2011
- 2011-01-18 WO PCT/GB2011/050077 patent/WO2011086394A1/en active Application Filing
- 2011-01-18 CA CA2787221A patent/CA2787221C/en active Active
- 2011-01-18 JP JP2012548482A patent/JP5841542B2/ja not_active Expired - Fee Related
- 2011-01-18 CN CN201180014336.8A patent/CN102869980B/zh not_active Expired - Fee Related
- 2011-01-18 EP EP11704836.3A patent/EP2526404B1/en not_active Not-in-force
- 2011-01-18 US US13/522,831 patent/US9035256B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2526404B1 (en) | 2018-01-10 |
GB201000756D0 (en) | 2010-03-03 |
US9035256B2 (en) | 2015-05-19 |
EP2526404A1 (en) | 2012-11-28 |
CN102869980B (zh) | 2016-06-29 |
CN102869980A (zh) | 2013-01-09 |
JP2013517467A (ja) | 2013-05-16 |
CA2787221C (en) | 2018-08-21 |
WO2011086394A1 (en) | 2011-07-21 |
CA2787221A1 (en) | 2011-07-21 |
US20130026369A1 (en) | 2013-01-31 |
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