发明名称 |
Apparatus and method for sensing a substance on a liquid surface |
摘要 |
A sensing element is embedded in an absorbant material having a substantial affinity for the substance to be sensed and a relatively low affinity for the liquid. A measurable quantity of the substance is concentrated in proximity to the sensing element and accurately positioning the sensing element in the material the thickness of the substance on the liquid surface is determinable.
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申请公布号 |
US4223552(A) |
申请公布日期 |
1980.09.23 |
申请号 |
US19790022622 |
申请日期 |
1979.03.21 |
申请人 |
EMHART INDUSTRIES, INC. |
发明人 |
GOLDSTEIN, SANDERS |
分类号 |
G01F23/22;G01N25/18;G01N27/06;(IPC1-7):G01N25/18;G01N33/18 |
主分类号 |
G01F23/22 |
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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