发明名称 |
METHOD AND APPARATUS FOR DETERMINING THE CONCENTRATION OF A COMPONENT IN A FLUID |
摘要 |
A method of determining the concentration of a component of interest within a fluid (22) within a container (24) includes determining a permittivity of the fluid, determining a conductivity of the fluid and determining the concentration of the component of interest based on a direct relationship between the determined permittivity and the determined conductivity. An example sensor for making such a concentration determination includes a capacitor portion (26) and control electronics (30) that operate the capacitor in a first mode for making the permittivity determination and a second mode for making the conductivity determination. An example data set (32) includes at least one three dimensional polynomial that describes a relationship between permittivity, conductivity and temperature for a particular concentration value. A disclosed example is well suited for making urea concentration level determinations.
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申请公布号 |
KR20060026048(A) |
申请公布日期 |
2006.03.22 |
申请号 |
KR20057024158 |
申请日期 |
2005.12.16 |
申请人 |
SIEMENS VDO AUTOMOTIVE CORPORATION |
发明人 |
STAHLMANN DANIEL;MCKENZIE ISABELLE;WILDESON RAY;CHILDS DAVID L. |
分类号 |
G01N27/06;G01N27/22 |
主分类号 |
G01N27/06 |
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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