发明名称 |
Sensitive and selective method and device for the detection of trace amounts of a substance |
摘要 |
A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of a inverted mesa structure, which has a membrane-like region and has a certain resonance frequency value. A surface region of the crystal resonator is modified by reactive molecules of a kind capable of interacting with the foreign material to yield a reaction product that effects a change in the resonance frequency of the crystal resonator from said certain resonance frequency value. This change is indicative of the identity and quantity of the foreign material. |
申请公布号 |
US7795008(B2) |
申请公布日期 |
2010.09.14 |
申请号 |
US20060643202 |
申请日期 |
2006.12.21 |
申请人 |
M.S. TECH LTD. |
发明人 |
DAYAGI YOHAI Y.;DAYAN LEV;SHALOM MOSHE |
分类号 |
C12M1/34;C07C321/02;C07C323/60;C07D339/04;C07F5/02;C07K1/10;G01G3/13;G01N27/00;G01N33/22;G01N33/553 |
主分类号 |
C12M1/34 |
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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