发明名称 |
Gas sensor apparatus and concentration measurement method |
摘要 |
<p>A gas sensor apparatus includes a gas sensor which outputs an output value corresponding to the concentration of a specific gas component contained in a gas; a pressure sensor which measures the pressure of the gas; and a computation section which computes a value representing the concentration of the specific gas component on the basis of the output value from the gas sensor and the pressure of the gas measured by the pressure sensor. The computation section computes a concentration value using an expression which is derived from Fick's law and is a function of the output value and the pressure value, computes a correction value on the basis of a correction term which is a function of the provisional specific-component concentration and the pressure value, and corrects the provisional specific-component concentration using the correction value in order to compute the concentration value of the specific gas component.</p> |
申请公布号 |
EP2557418(A1) |
申请公布日期 |
2013.02.13 |
申请号 |
EP20120179728 |
申请日期 |
2012.08.08 |
申请人 |
NGK SPARKPLUG CO., LTD. |
发明人 |
TSUDUKI, MASAO;TAJIMA, TOMOHIRO;ITO, GINJIROU |
分类号 |
G01N27/407;G01N27/416;G01N33/00 |
主分类号 |
G01N27/407 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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