JP5288461B2 - ガスセンサ - Google Patents
ガスセンサ Download PDFInfo
- Publication number
- JP5288461B2 JP5288461B2 JP2008259075A JP2008259075A JP5288461B2 JP 5288461 B2 JP5288461 B2 JP 5288461B2 JP 2008259075 A JP2008259075 A JP 2008259075A JP 2008259075 A JP2008259075 A JP 2008259075A JP 5288461 B2 JP5288461 B2 JP 5288461B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- filter
- sensor
- zeolite
- water
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 229910021536 Zeolite Inorganic materials 0.000 claims description 27
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 27
- 239000010457 zeolite Substances 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 23
- 230000002209 hydrophobic effect Effects 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 60
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
(1)撥水フィルタとしてたとえばテフロン(登録商標)系材料による防水材料を用いた場合には、水の回り込みによる内部浸入がある。
(2)各フィルタ材料を重ねて設置すると、中間層に水分が滞留しやすいという問題がある。
(3)構成部品が多くセンサが大きくなりがちである。また、加熱機構の消費電力も大きい。
(4)防爆用金網に結露水が膜状に付着した場合、ガス検出部へのガス透過が阻害される。
成図である。ガスセンサ1は、その内部空間がガス検出室2Aとなる円筒状のセンサ筐体
2の一方の開口に嵌合されたベース部3に、水素ガス検出素子としてのセンサ素子4が搭
載され、このセンサ素子4と電気的に接続されたリードピン5が、ベース部3を貫通して
備えられている。
て、フィルタ6を加熱する加熱手段を備えていることを特徴とする。
2 センサ筐体
2A ガス検出室
2B ガス導入用開口部
4 センサ素子
6 フィルタ
7 金網(メッシュ部材)
8 ゼオライト(疎水性膜、親水性膜)
12 ヒータ
Claims (1)
- 外部からガス導入用開口部を介して被検知ガスが導き入れられるガス検出室を有するセンサ筐体と、前記ガス検出室内に配置され、被検知ガスの濃度を検出するためのセンサ素子と、前記ガス導入用開口部に設けられ、メッシュ部材及び該メッシュ部材の両面に成膜されたゼオライトの疎水性膜または親水性膜からなり、防爆性および防水性を有するフィルタと、からなり、
前記フィルタの前記ゼオライトの表面に固定され、前記センサ素子の動作時、前記フィルタを水の蒸発温度以上の一定温度に加熱するヒータをさらに備えていることを特徴とするガスセンサ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008259075A JP5288461B2 (ja) | 2008-10-03 | 2008-10-03 | ガスセンサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008259075A JP5288461B2 (ja) | 2008-10-03 | 2008-10-03 | ガスセンサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010091305A JP2010091305A (ja) | 2010-04-22 |
JP5288461B2 true JP5288461B2 (ja) | 2013-09-11 |
Family
ID=42254181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008259075A Active JP5288461B2 (ja) | 2008-10-03 | 2008-10-03 | ガスセンサ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5288461B2 (ja) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1142407A (ja) * | 1997-07-25 | 1999-02-16 | Nisshin Steel Co Ltd | ゼオライト膜フィルタ−およびその製造方法 |
JP2004037235A (ja) * | 2002-07-03 | 2004-02-05 | Matsushita Electric Ind Co Ltd | ガスセンサおよびそれを用いた燃料電池システムと自動車 |
EP1720008A4 (en) * | 2004-02-24 | 2007-05-23 | Mikuni Kogyo Kk | CARBON MONOXIDE SENSOR AND METHOD FOR DETECTING CARBON MONOXIDE |
JP4649285B2 (ja) * | 2005-08-01 | 2011-03-09 | 本田技研工業株式会社 | ガスセンサ |
US8293179B2 (en) * | 2006-07-14 | 2012-10-23 | Fis Inc. | Gas detection apparatus |
JP4739166B2 (ja) * | 2006-10-24 | 2011-08-03 | 本田技研工業株式会社 | ガスセンサ |
JP4892511B2 (ja) * | 2008-04-15 | 2012-03-07 | 本田技研工業株式会社 | ガスセンサ |
-
2008
- 2008-10-03 JP JP2008259075A patent/JP5288461B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2010091305A (ja) | 2010-04-22 |
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