JP6320547B2 - 赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置及び方法 - Google Patents
赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置及び方法 Download PDFInfo
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- 229910000661 Mercury cadmium telluride Inorganic materials 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
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- 238000002485 combustion reaction Methods 0.000 description 2
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- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- MCMSPRNYOJJPIZ-UHFFFAOYSA-N cadmium;mercury;tellurium Chemical compound [Cd]=[Te]=[Hg] MCMSPRNYOJJPIZ-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 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
- G01N21/25—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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
- F04F5/50—Control of compressing pumps
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/05—Flow-through cuvettes
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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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
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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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G01N2021/396—Type of laser source
- G01N2021/399—Diode laser
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Description
Claims (12)
- 赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置であって、
分析セル(16)を通して放射を案内可能な赤外放射源(12)と、
圧送管(34)を通して前記分析セル(16)内へ導入可能及び前記分析セル(16)から導出可能な試料ガス流と、
前記分析セル(16)内で生じた吸収スペクトルを測定可能な検出器(22)と、
前記分析セル(16)の下流に配置されており、かつ、前記分析セル(16)及び前記圧送管(34)を通して測定ガスを圧送可能な吸引ジェットポンプ(30)と、
を有する装置において、
前記吸引ジェットポンプ(30)の推進ガス接続部(44)へ通じる推進ガス管(48)内に、該推進ガス管(48)内の圧力を調整可能な制御弁(60)が配置されており、
前記制御弁(60)は、前記推進ガス管(48)内の推進圧を、前記分析セル(16)の下流での前記圧送管(34)内の圧送圧又は前記分析セル(16)内の圧力に直接に依存して制御する比例弁である、
装置。 - 前記比例弁(60)は、前記圧送管(34)に流体接続された制御室(64)を有するニューマチック弁である、
請求項1に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 前記圧送管(34)内の前記分析セル(16)の下流に、又は、前記分析セル(16)内に、圧力センサ(66)が配置されている、
請求項1に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 前記圧力センサ(66)は、前記圧力センサ(66)の測定値に依存して前記制御弁(60)の開放位置を制御する前記制御弁(60)の制御ユニット(68)に接続されている、
請求項3に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 前記装置は、前記分析セル(16)の上流の前記圧送管(34)に選択的に接続可能な試料ガス接続部(32)と基準ガス接続部もしくは洗浄ガス接続部(70)とを有する、
請求項1から4までのいずれか1項に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 前記圧送管(34)に、切替弁(74)が配置された分岐部(72)が構成されており、
前記切替弁(74)により、前記圧送管(34)が選択的に前記試料ガス接続部(32)又は前記基準ガス接続部もしくは洗浄ガス接続部(70)に流体接続可能である、
請求項5に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 前記圧送管(34)内で、前記分析セル(16)の上流に、ノズル(36)が配置されている、
請求項1から6までのいずれか1項に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 前記赤外放射源(12)は、量子カスケードレーザーである、
請求項1から7までのいずれか1項に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置。 - 請求項1から8までのいずれか1項に記載の装置を用い、赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める方法であって、
赤外放射源(12)の放射を分析セル(16)へ案内し、
吸引ジェットポンプ(30)によって試料ガス流を吸引して前記分析セル(16)及び圧送管(34)内を通流させ、これに応じて、検出器(22)により、前記分析セル(16)から出る放射の吸収スペクトルを求め、該吸収スペクトルから計算ユニット(28)において前記試料ガス流中のガスの濃度を計算する、
方法において、
比例弁として実装される制御弁(60)を介して、推進ガス管(48)内及び前記吸引ジェットポンプ(30)の推進ノズル(52)内の推進圧を、前記分析セル(16)の下流での前記分析セル(16)内又は前記圧送管(34)内の圧送圧に直接に依存して制御する、
方法。 - 前記圧送管(34)内の負圧が低下するにつれて、前記推進ガス管(48)内により高い推進圧を形成する、
請求項9に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める方法。 - 前記圧送管(34)内の圧送圧を、前記推進ガス管(48)内の比例弁(60)の制御室(64)へ導通する、
請求項9又は10に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める方法。 - 前記圧送管(34)内の圧送圧を測定し、測定値を前記推進ガス管(48)内に配置された制御弁(60)の制御ユニット(68)へ供給し、
圧力値に依存して前記制御弁(60)を駆動する、
請求項9又は10に記載の赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める方法。
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DE102014101915.6A DE102014101915B4 (de) | 2014-02-14 | 2014-02-14 | Vorrichtung und Verfahren zur Bestimmung der Konzentration zumindest eines Gases in einem Probengasstrom mittels Infrarotabsorptionsspektroskopie |
DE102014101915.6 | 2014-02-14 | ||
PCT/EP2015/050640 WO2015121017A1 (de) | 2014-02-14 | 2015-01-15 | Vorrichtung und verfahren zur bestimmung der konzentration zumindest eines gases in einem probengasstrom mittels infrarotabsorptionsspektroskopie |
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US10379012B2 (en) * | 2018-01-17 | 2019-08-13 | Richard John McNamara | System for converting propelling thrust to produce a continuous flow |
CN114323819A (zh) * | 2021-12-17 | 2022-04-12 | 上海航天化工应用研究所 | 一种固体推进剂老化过程中析出气体收集装置及方法 |
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DE102006005901B3 (de) | 2006-02-09 | 2007-08-23 | M & C Products Analysentechnik Gmbh | Gasanalysevorrichtung und Verwendung einer Gasstrahlpumpe |
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