KR100697057B1 - 비분산적외선 가스측정장치 - Google Patents
비분산적외선 가스측정장치 Download PDFInfo
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- KR100697057B1 KR100697057B1 KR1020050035043A KR20050035043A KR100697057B1 KR 100697057 B1 KR100697057 B1 KR 100697057B1 KR 1020050035043 A KR1020050035043 A KR 1020050035043A KR 20050035043 A KR20050035043 A KR 20050035043A KR 100697057 B1 KR100697057 B1 KR 100697057B1
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- Prior art keywords
- infrared
- light receiving
- receiving sensor
- gas
- optical bench
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- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 claims abstract description 57
- 239000006185 dispersion Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- 238000013022 venting Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 abstract description 6
- 229910002090 carbon oxide Inorganic materials 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 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
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- 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
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- 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
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2632—Circuits therefor for testing diodes
- G01R31/2635—Testing light-emitting diodes, laser diodes or photodiodes
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims (3)
- 적외선을 방사하기 위한 적외선램프(106)와, 상기 적외선램프(106)에서 방사된 적외선이 가스에 흡수 반응을 일으킬 수 있는 광학벤치(100)와, 상기 광학벤치(100)에서 흡수되지 않은 적외선을 감지하여 적외선 신호로 바꾸어 주는 수광센서(107)로 이루어진 벤치부를 포함하며, 상기 광학벤치는 4각의 함체 형상으로 이루어진 본체(101)에 격벽(102)을 다단 절곡되게 설치하여 동일 폭을 가지고 다단 절곡된 광통로(103)를 형성하고, 상기 광통로(103)의 코너부위에는 사선방향으로 반사경(105)을 각각 설치한 비분산적외선 가스측정장치에 있어서,상기 광통로(103)의 격벽 바깥쪽 공간부(108) 상하에는 상하방향으로 통하는 다수의 통기공(109)이 서로 동일위치에 각각 형성되고, 상기 각 격벽(102)에는 상기 공간부(108)와 상기 광통로(103) 사이를 통기시키는 통기공(110)이 각각 형성되며;상기 적외선램프(106)와 상기 수광센서(107)는 상기 광학벤치(100)의 광통로(103) 각 단부에 상방을 향해 각각 설치되고;상기 적외선램프(106)의 후위에는 상기 적외선램프(106)로부터 방사된 적외선을 전방으로 반사시킬 수 있도록 반구형의 반사경(111)이 설치되며;상기 수광센서(107)의 상부에는 수평방향으로 입사되는 적외선을 상기 수광센서(107) 방향으로 반사시키기 위한 반사경(112)이 상하방향으로 경사지게 설치된 것을 특징으로 하는 비분산적외선 가스측정장치.
- 삭제
- 제 1 항에 있어서,상기 수광센서(107) 상부에 설치되는 반사경의 내주면은 상기 입사되는 적외선을 상기 수광센서(107)의 중앙부에 집중시킬 수 있도록 초점거리가 상기 수광센서(107)와의 거리와 같아지는 곡면의 형태로 라운드지게 형성한 것을 특징으로 하는 비분산적외선 가스측정장치.
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KR1020050035043A KR100697057B1 (ko) | 2005-04-27 | 2005-04-27 | 비분산적외선 가스측정장치 |
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KR1020050035043A KR100697057B1 (ko) | 2005-04-27 | 2005-04-27 | 비분산적외선 가스측정장치 |
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KR20-2005-0011759U Division KR200389486Y1 (ko) | 2005-04-27 | 2005-04-27 | 비분산적외선 가스측정장치 |
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KR20060112510A KR20060112510A (ko) | 2006-11-01 |
KR100697057B1 true KR100697057B1 (ko) | 2007-03-22 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10613028B2 (en) | 2017-12-22 | 2020-04-07 | Elt Sensor Corp. | Optical cavity for gas sensor and gas sensor having optical cavity |
KR102556274B1 (ko) | 2022-10-07 | 2023-07-17 | (주)세성 | 공압 펌프를 구비한 가스측정 셀을 구비한 ndir 가스측정기 |
KR20240048824A (ko) | 2022-10-07 | 2024-04-16 | 라이프앤사이언스주식회사 | 간섭가스 구분 기능을 구비한 ndir 가스 측정기 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100852559B1 (ko) * | 2007-01-26 | 2008-08-18 | 대우조선해양 주식회사 | 선박의 스모크 실측을 위한 측정시스템 |
KR101108544B1 (ko) * | 2009-07-28 | 2012-01-30 | (주)아이티헬스 | 비분산 적외선 가스 측정 장치 |
KR20180021956A (ko) * | 2016-08-22 | 2018-03-06 | (주)트루아이즈 | 포물 반사체를 이용한 광 도파관 및 이를 구비하는 적외선 가스 센서 |
KR102267044B1 (ko) * | 2019-12-11 | 2021-06-18 | 주식회사 태성환경연구소 | 비분산적외선 방식의 이산화탄소 가스센서 |
KR102260220B1 (ko) * | 2020-05-14 | 2021-06-03 | 주식회사 이엘티센서 | 이중 구조를 갖는 가스센서용 광 공동 및 이 광 공동을 갖는 가스센서 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6313464B1 (en) | 1998-06-18 | 2001-11-06 | Robert J. Schrader | Infrared, multiple gas analyzer and methods for gas analysis |
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- 2005-04-27 KR KR1020050035043A patent/KR100697057B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6313464B1 (en) | 1998-06-18 | 2001-11-06 | Robert J. Schrader | Infrared, multiple gas analyzer and methods for gas analysis |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10613028B2 (en) | 2017-12-22 | 2020-04-07 | Elt Sensor Corp. | Optical cavity for gas sensor and gas sensor having optical cavity |
KR102556274B1 (ko) | 2022-10-07 | 2023-07-17 | (주)세성 | 공압 펌프를 구비한 가스측정 셀을 구비한 ndir 가스측정기 |
KR20240048824A (ko) | 2022-10-07 | 2024-04-16 | 라이프앤사이언스주식회사 | 간섭가스 구분 기능을 구비한 ndir 가스 측정기 |
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