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公开(公告)号:US20090250344A1
公开(公告)日:2009-10-08
申请号:US12417074
申请日:2009-04-02
申请人: Seiji OHYA , Tomohiro Wakazono , Takashi Nakao , Hisashi Sasaki , Koji Shiotani
发明人: Seiji OHYA , Tomohiro Wakazono , Takashi Nakao , Hisashi Sasaki , Koji Shiotani
IPC分类号: G01N27/26
CPC分类号: G01N27/419 , G01N27/4067
摘要: A gas sensor (200) has a gas sensor element (10) including a first measurement chamber (16); a first pumping cell (11) having a first interior pump electrode (11c) and its counterpart electrode (11b); a second measurement chamber (18); a second pumping cell (13) that has a second interior pump electrode (13b); and a beater (50). The heater (50) has a lead section (50a); a first resistance portion (50bx) having a higher resistance than the lead portion (50a); and a main heating portion (50k) having a second resistance portion (50by) having a higher resistance than the first resistance portion (50bx) disposed at a leading end side in a longitudinal direction relative to a leading end of the first resistance portion (50bx). The second interior pump electrode (13b) is located within the first resistance portion (50bx) in the longitudinal direction.
摘要翻译: 气体传感器(200)具有包括第一测量室(16)的气体传感器元件(10)。 具有第一内部泵电极(11c)和其对应电极(11b)的第一泵送单元(11); 第二测量室(18); 具有第二内部泵电极(13b)的第二泵浦单元(13); 和打浆机(50)。 加热器(50)具有引线部(50a); 具有比引线部分(50a)更高的电阻的第一电阻部分(50bx); 和具有比第一电阻部分(50bx)高的第二电阻部分(50by)的主加热部分(50by),该第二电阻部分设置在相对于第一电阻部分(50bx)的前端的纵向方向上的前端侧 )。 第二内部泵电极(13b)在纵向方向上位于第一电阻部分(50bx)内。
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公开(公告)号:US20090280240A1
公开(公告)日:2009-11-12
申请号:US12463625
申请日:2009-05-11
申请人: Seiji OHYA , Tomohiro WAKAZONO , Kenji KATO , Koji SHIOTANI
发明人: Seiji OHYA , Tomohiro WAKAZONO , Kenji KATO , Koji SHIOTANI
CPC分类号: G01N27/4075
摘要: A gas sensor including a gas sensor element having a first measurement chamber (16); a first pumping cell (11); a second measurement chamber (18) into which a gas to be measured having a controlled oxygen partial pressure is introduced; and a second pumping cell (13) having a second inner pump electrode (13b) and a second counterpart electrode (13c) pump electrode configured to detect a specific gas component. The second inner pump electrode is made of a material that contains, as a principal ingredient, two kinds of Pt particles having different particle sizes and whose particle size ratio measured by a sedimentation particle-size distribution ranges from 1.75 to 14.2. A mixing ratio between large Pt particles and small Pt particles has a mass ratio of 10/90 to 50/50. A 10 kHz-1 Hz resistance value across the second pumping cell at 600° C. is 150Ω or less.
摘要翻译: 一种气体传感器,包括具有第一测量室(16)的气体传感器元件; 第一泵送单元(11); 引入具有受控氧分压的待测气体的第二测量室(18); 以及具有第二内泵电极(13b)和配置成检测特定气体成分的第二配对电极(13c)泵浦电极的第二泵浦电池(13)。 第二内泵电极由含有不同粒径的两种Pt颗粒作为主要成分的材料制成,其沉降粒度分布测定的粒径比为1.75〜14.2。 大Pt颗粒和小Pt颗粒之间的混合比的质量比为10/90至50/50。 在600℃下跨越第二抽滤单元的10kHz-1Hz电阻值为150Omega或更小。
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