Composite sensor
The present invention relates to a gas sensor, and particularly to a combined gas sensor for detecting the concentration of acid gases such as nitrogen oxides, etc. in exhaust gases and oxygen concentration in a gas atmosphere to be detected. A combined gas sensor of the invention is equipped with a...
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| creator | Gao, Yunzhi Kunimoto, Akira Hasei, Masaharu |
| description | The present invention relates to a gas sensor, and particularly to a combined gas sensor for detecting the concentration of acid gases such as nitrogen oxides, etc. in exhaust gases and oxygen concentration in a gas atmosphere to be detected.
A combined gas sensor of the invention is equipped with a second oxygen sensing electrode active only to oxygen, which is disposed on a solid electrolyte substrate such that it is directly exposed to detection gases. Sensor disorder is detected by measuring an electromotive force (signal output ) generated between a reference electrode and the second oxygen sensing electrode as an oxygen concentration in an exhaust gas atmosphere, and comparing and judging the detected result with a signal output corresponding to an electromotive force between a first oxygen sensing electrode and the sit reference electrode , or with a signal output of an oxygen pump current. |
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A combined gas sensor of the invention is equipped with a second oxygen sensing electrode active only to oxygen, which is disposed on a solid electrolyte substrate such that it is directly exposed to detection gases. Sensor disorder is detected by measuring an electromotive force (signal output ) generated between a reference electrode and the second oxygen sensing electrode as an oxygen concentration in an exhaust gas atmosphere, and comparing and judging the detected result with a signal output corresponding to an electromotive force between a first oxygen sensing electrode and the sit reference electrode , or with a signal output of an oxygen pump current.</description><language>eng</language><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6471840$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,780,802,885,64038</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6471840$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Gao, Yunzhi</creatorcontrib><creatorcontrib>Kunimoto, Akira</creatorcontrib><creatorcontrib>Hasei, Masaharu</creatorcontrib><creatorcontrib>Kabushiki Kaisha Riken</creatorcontrib><title>Composite sensor</title><description>The present invention relates to a gas sensor, and particularly to a combined gas sensor for detecting the concentration of acid gases such as nitrogen oxides, etc. in exhaust gases and oxygen concentration in a gas atmosphere to be detected.
A combined gas sensor of the invention is equipped with a second oxygen sensing electrode active only to oxygen, which is disposed on a solid electrolyte substrate such that it is directly exposed to detection gases. Sensor disorder is detected by measuring an electromotive force (signal output ) generated between a reference electrode and the second oxygen sensing electrode as an oxygen concentration in an exhaust gas atmosphere, and comparing and judging the detected result with a signal output corresponding to an electromotive force between a first oxygen sensing electrode and the sit reference electrode , or with a signal output of an oxygen pump current.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZBBwzs8tyC_OLElVKE7NK84v4mFgTUvMKU7lhdLcDApuriHOHrqlxQWJJal5JcXx6UWJIMrAzMTc0MLEwJgIJQCoZyBO</recordid><startdate>20021029</startdate><enddate>20021029</enddate><creator>Gao, Yunzhi</creator><creator>Kunimoto, Akira</creator><creator>Hasei, Masaharu</creator><scope>EFH</scope></search><sort><creationdate>20021029</creationdate><title>Composite sensor</title><author>Gao, Yunzhi ; Kunimoto, Akira ; Hasei, Masaharu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_064718403</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Gao, Yunzhi</creatorcontrib><creatorcontrib>Kunimoto, Akira</creatorcontrib><creatorcontrib>Hasei, Masaharu</creatorcontrib><creatorcontrib>Kabushiki Kaisha Riken</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Gao, Yunzhi</au><au>Kunimoto, Akira</au><au>Hasei, Masaharu</au><aucorp>Kabushiki Kaisha Riken</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Composite sensor</title><date>2002-10-29</date><risdate>2002</risdate><abstract>The present invention relates to a gas sensor, and particularly to a combined gas sensor for detecting the concentration of acid gases such as nitrogen oxides, etc. in exhaust gases and oxygen concentration in a gas atmosphere to be detected.
A combined gas sensor of the invention is equipped with a second oxygen sensing electrode active only to oxygen, which is disposed on a solid electrolyte substrate such that it is directly exposed to detection gases. Sensor disorder is detected by measuring an electromotive force (signal output ) generated between a reference electrode and the second oxygen sensing electrode as an oxygen concentration in an exhaust gas atmosphere, and comparing and judging the detected result with a signal output corresponding to an electromotive force between a first oxygen sensing electrode and the sit reference electrode , or with a signal output of an oxygen pump current.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | USPTO Issued Patents |
| title | Composite sensor |
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