JPS5515086A - Gas density measuring unit - Google Patents
Gas density measuring unitInfo
- Publication number
- JPS5515086A JPS5515086A JP8880578A JP8880578A JPS5515086A JP S5515086 A JPS5515086 A JP S5515086A JP 8880578 A JP8880578 A JP 8880578A JP 8880578 A JP8880578 A JP 8880578A JP S5515086 A JPS5515086 A JP S5515086A
- Authority
- JP
- Japan
- Prior art keywords
- light
- outputs
- photoelectric conversion
- pass
- discharge tube
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 abstract 5
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 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
Landscapes
- 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)
Abstract
PURPOSE:To obtain a simple and good-S/N measuring unit by causing the light of a gas discharge tube to pass through measured gas and a standard cell and be incident onto two photoelectric conversion elements and making their outputs into AC by a gate means, which switches them alternatively, and comparing them. CONSTITUTION:The light of gas discharge tube 1 is caused to pass through measured gas atmosphere 15 and standard cell 3 and be incident onto two photoelectric conversion elements 6 and 7, and their outputs are made into AC by a gate means which swithces them alternately, and they are compared with each other. For example, the light of He-Ne discharge tube 1 which emits the light of wave length 3.39mu is caused to pass through environmental atmosphere 15, where methane- system hydrogen carbide is measured gas, and standard cell 3 and be incident onto photoelectric conversion elements 6 and 7. Their outputs are made into AC by gate circuits 8 and 9 which are driven by gate pulse generation circuit 10 and are returned to DC again by intergrating circuits 11 and 12, and after that, the comparison operation result dependent upon comparison operation circuit 13 is displayed on displayed on display part 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8880578A JPS5515086A (en) | 1978-07-18 | 1978-07-18 | Gas density measuring unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8880578A JPS5515086A (en) | 1978-07-18 | 1978-07-18 | Gas density measuring unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5515086A true JPS5515086A (en) | 1980-02-01 |
JPS61933B2 JPS61933B2 (en) | 1986-01-13 |
Family
ID=13953088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8880578A Granted JPS5515086A (en) | 1978-07-18 | 1978-07-18 | Gas density measuring unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5515086A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3316771A1 (en) * | 1983-05-07 | 1984-11-08 | Leybold-Heraeus GmbH, 5000 Köln | LIGHT SOURCE FOR NON-DISPERSIVE GAS ANALYZERS AS A FLUORESCENT LAMP |
JPS62235545A (en) * | 1986-01-01 | 1987-10-15 | イラド テクノロジ−ス リミテツド | Infrared analyzer and infrared source thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0450183Y2 (en) * | 1986-08-08 | 1992-11-26 |
-
1978
- 1978-07-18 JP JP8880578A patent/JPS5515086A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3316771A1 (en) * | 1983-05-07 | 1984-11-08 | Leybold-Heraeus GmbH, 5000 Köln | LIGHT SOURCE FOR NON-DISPERSIVE GAS ANALYZERS AS A FLUORESCENT LAMP |
JPS62235545A (en) * | 1986-01-01 | 1987-10-15 | イラド テクノロジ−ス リミテツド | Infrared analyzer and infrared source thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS61933B2 (en) | 1986-01-13 |
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