GB1530922A - Infrared gas analysis system - Google Patents
Infrared gas analysis systemInfo
- Publication number
- GB1530922A GB1530922A GB51953/75A GB5195375A GB1530922A GB 1530922 A GB1530922 A GB 1530922A GB 51953/75 A GB51953/75 A GB 51953/75A GB 5195375 A GB5195375 A GB 5195375A GB 1530922 A GB1530922 A GB 1530922A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- sample
- air
- cell
- cells
- 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
Links
- 238000004868 gas analysis Methods 0.000 title abstract 2
- 239000003570 air Substances 0.000 abstract 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- 239000012080 ambient air Substances 0.000 abstract 2
- 239000000356 contaminant Substances 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 238000007405 data analysis Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 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
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
- G01M15/108—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using optical methods
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
1530922 Gas analysis UNITED TECHNOLOGIES CORP 18 Dec 1975 [19 Dec 1974(2)] 51953/75 Heading G1A A system for measuring the amount of contaminant in a sample gas comprises a gas sample cell 28 and a cell 34 containing a reference gas, means for alternately filling cell 28 with ambient air or sample gas, means 104, 106 for producing and means 112, 110 (also Fig. 4) for moving an infrared beam and passing it alternately through the cells, detector means 128 with narrow band filters producing two electrical sgnals indicative of infrared absorbtion in the respective cells, both when the sample cell is filled with ambient air and with sample gas, means including a signal processing unit 33 for producing therefrom a signal proportional to the concentration of the contaminant in the sample gas. As notch 144 passes LEDs 146, 148, 150 and phototransistors 152, 154, 156 they provide synchronization pulses to processing electronics 33 on lines 36a, b and c. Those on line 36b are applied to FET 197 Fig. 19 so that line 196 is referenced to earth via resistor 198 to restore the D.C. component to the above signals. With two narrow band filters in detector means 128 sample and reference output signals are obtained from electronics 33 on lines 180, 182, 180' and 182' for CO and hydrocarbon respectively. These pass to a data analysis system 24 having a multi-plexing unit and a computer which computes V R AIR x V S GAS and V S AIR x V R GAS where VR and V S are voltages due to the reference and sample cells and AIR or GAS refers to whether the sample cell is filled with air or gas. The computer output i which is equivalent to the amount of CO or hydrocarbon. Details of system 24 are described with Figs. 10 and 11 (not shown), and an analogue version with Fig. 15 (not shown). The output is compensated according to a predetermined function as for example that in Fig. 13. The embodiments are the same as in Specification 1530923.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53451774A | 1974-12-19 | 1974-12-19 | |
| US05/534,495 US3957372A (en) | 1974-12-19 | 1974-12-19 | Vehicle exhaust gas analysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1530922A true GB1530922A (en) | 1978-11-01 |
Family
ID=27064490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51953/75A Expired GB1530922A (en) | 1974-12-19 | 1975-12-18 | Infrared gas analysis system |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5188291A (en) |
| BR (1) | BR7508505A (en) |
| DE (1) | DE2557508A1 (en) |
| DK (1) | DK575075A (en) |
| ES (1) | ES443640A1 (en) |
| FR (1) | FR2295416A1 (en) |
| GB (1) | GB1530922A (en) |
| IE (1) | IE43516B1 (en) |
| IT (1) | IT1054690B (en) |
| LU (1) | LU74063A1 (en) |
| NL (1) | NL7514797A (en) |
| SE (1) | SE7513901L (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414446A2 (en) * | 1989-08-19 | 1991-02-27 | Engine Test Technique Limited | Gas analysis |
| EP1398485A2 (en) * | 2002-09-13 | 2004-03-17 | Delphi Technologies, Inc. | Control method |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT376301B (en) * | 1982-05-06 | 1984-11-12 | List Hans | METHOD FOR CONTINUOUSLY MEASURING THE MASS OF AEOROSOL PARTICLES IN GASEOUS SAMPLES, AND APPARATUS FOR CARRYING OUT THE METHOD |
| JPS5961756A (en) * | 1982-09-30 | 1984-04-09 | Shimadzu Corp | Apparatus for measuring carbon |
| FR2542092B1 (en) * | 1983-03-03 | 1986-02-28 | Inst Francais Du Petrole | METHOD AND DEVICE FOR DETERMINING THE COMPOSITION OF AN ALCOHOL-PETROL MIXTURE, SUITABLE FOR AUTOMATIC ADJUSTMENT OF ENGINES FUEL COMBUSTIBLE WITH A VARIABLE ALCOHOL CONTENT |
| AT379452B (en) * | 1983-04-21 | 1986-01-10 | Avl Verbrennungskraft Messtech | METHOD FOR DETERMINING THE SIZES OF ABSORBENT PROPORTIONS OF A SAMPLE, AND DEVICE FOR IMPLEMENTING THE METHOD |
| AT391208B (en) * | 1985-12-09 | 1990-09-10 | Avl Verbrennungskraft Messtech | METHOD FOR THE QUANTITATIVE MEASUREMENT OF HYDROCARBONS |
| AT393325B (en) * | 1988-05-17 | 1991-09-25 | Avl Verbrennungskraft Messtech | METHOD FOR MEASURING THE LAMBDA AND / OR AIR / FUEL RATIO AND DEVICE FOR IMPLEMENTING THE METHOD |
| JP2531278B2 (en) * | 1989-10-18 | 1996-09-04 | 株式会社豊田自動織機製作所 | Ozone concentration measuring device |
| JPH0830680B2 (en) * | 1990-10-15 | 1996-03-27 | アンリツ株式会社 | Gas detector |
| JPH0634535A (en) * | 1992-07-14 | 1994-02-08 | Hiroo Tarumi | Method for measuring dew formation and meter for dew formation |
| JP2686698B2 (en) * | 1992-11-05 | 1997-12-08 | 日本無線株式会社 | Isotope ratio analysis method and device |
| JP2001228083A (en) * | 2000-02-21 | 2001-08-24 | Nkk Corp | Method for directly analyzing molten metal |
| JP2012137374A (en) | 2010-12-27 | 2012-07-19 | Horiba Ltd | Exhaust gas analysis system and exhaust gas analysis method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1302592C2 (en) * | 1960-06-03 | 1975-04-10 | Office National D'etudes Et De Recherches Aerospatiales, Chatillon-Sous-Bagneux (Frankreich) | DEVICE FOR DETERMINING THE CONCENTRATION OF AN ANALYSIS SUBSTANCE USING SELECTIVE ABSORPTION OF MODULATED RADIATION |
| US3562522A (en) * | 1968-09-18 | 1971-02-09 | Beckman Instruments Inc | Nondispersive ir analyzer and method for calibrating |
| DE2016682A1 (en) * | 1970-04-08 | 1971-11-04 | Hartmann & Braun Ag | Compensation of pressure- and temperature-dependent changes in the measurement gas concentration in ultrared gas analyzers |
| US3696247A (en) * | 1970-11-12 | 1972-10-03 | Lionel D Mcintosh | Vehicle exhaust emissions analyzer |
| US3790797A (en) * | 1971-09-07 | 1974-02-05 | S Sternberg | Method and system for the infrared analysis of gases |
-
1975
- 1975-12-10 SE SE7513901A patent/SE7513901L/en unknown
- 1975-12-18 DK DK575075A patent/DK575075A/en not_active Application Discontinuation
- 1975-12-18 NL NL7514797A patent/NL7514797A/en not_active Application Discontinuation
- 1975-12-18 ES ES443640A patent/ES443640A1/en not_active Expired
- 1975-12-18 GB GB51953/75A patent/GB1530922A/en not_active Expired
- 1975-12-19 LU LU74063A patent/LU74063A1/xx unknown
- 1975-12-19 IT IT30533/75A patent/IT1054690B/en active
- 1975-12-19 JP JP50152725A patent/JPS5188291A/ja active Pending
- 1975-12-19 FR FR7538968A patent/FR2295416A1/en active Granted
- 1975-12-19 BR BR7508505*A patent/BR7508505A/en unknown
- 1975-12-19 DE DE19752557508 patent/DE2557508A1/en not_active Ceased
- 1975-12-19 IE IE2778/75A patent/IE43516B1/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414446A2 (en) * | 1989-08-19 | 1991-02-27 | Engine Test Technique Limited | Gas analysis |
| EP0414446A3 (en) * | 1989-08-19 | 1991-09-25 | Engine Test Technique Limited | Gas analysis |
| EP1398485A2 (en) * | 2002-09-13 | 2004-03-17 | Delphi Technologies, Inc. | Control method |
| EP1398485A3 (en) * | 2002-09-13 | 2005-04-20 | Delphi Technologies, Inc. | Control method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2295416B1 (en) | 1981-09-18 |
| JPS5188291A (en) | 1976-08-02 |
| LU74063A1 (en) | 1976-07-20 |
| IE43516B1 (en) | 1981-03-25 |
| IT1054690B (en) | 1981-11-30 |
| NL7514797A (en) | 1976-06-22 |
| BR7508505A (en) | 1976-08-24 |
| IE43516L (en) | 1976-06-19 |
| FR2295416A1 (en) | 1976-07-16 |
| DE2557508A1 (en) | 1976-07-01 |
| ES443640A1 (en) | 1977-10-01 |
| AU8758675A (en) | 1977-06-23 |
| DK575075A (en) | 1976-06-20 |
| SE7513901L (en) | 1976-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |