JPH0129257B2 - - Google Patents
Info
- Publication number
- JPH0129257B2 JPH0129257B2 JP19039181A JP19039181A JPH0129257B2 JP H0129257 B2 JPH0129257 B2 JP H0129257B2 JP 19039181 A JP19039181 A JP 19039181A JP 19039181 A JP19039181 A JP 19039181A JP H0129257 B2 JPH0129257 B2 JP H0129257B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- output
- filter
- gas sensor
- comparator
- 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
- 239000007789 gas Substances 0.000 claims description 73
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 35
- 238000001514 detection method Methods 0.000 description 18
- 239000003990 capacitor Substances 0.000 description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- 230000007423 decrease Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000001052 transient effect Effects 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000012210 heat-resistant fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19039181A JPS5892847A (ja) | 1981-11-26 | 1981-11-26 | ガス検出方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19039181A JPS5892847A (ja) | 1981-11-26 | 1981-11-26 | ガス検出方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5892847A JPS5892847A (ja) | 1983-06-02 |
| JPH0129257B2 true JPH0129257B2 (en, 2012) | 1989-06-08 |
Family
ID=16257374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19039181A Granted JPS5892847A (ja) | 1981-11-26 | 1981-11-26 | ガス検出方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5892847A (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4236174B2 (ja) * | 2003-12-26 | 2009-03-11 | フィガロ技研株式会社 | フルオロカーボンガスの検出装置 |
| JP4709630B2 (ja) * | 2005-10-27 | 2011-06-22 | 東海電子株式会社 | 呼気中アルコール測定方法 |
-
1981
- 1981-11-26 JP JP19039181A patent/JPS5892847A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5892847A (ja) | 1983-06-02 |
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