发明名称 |
Method and device for measuring impedance by means of a tunable oscillator |
摘要 |
The invention relates to a method and system and microchip for determining impedance of a variable impedance component. The method comprises tuning a tunable oscillator over a predefined tuning range, the tunable oscillator having the variable impedance component coupled as a load thereof. The frequency response of the tunable oscillator is measured as a function of said tuning. Finally, the measured frequency response is analyzed for determining the impedance of the variable impedance component. The invention makes possible to manufacture smaller and simpler monolithic sensor microchips. |
申请公布号 |
EP2141495(A3) |
申请公布日期 |
2013.03.06 |
申请号 |
EP20090164118 |
申请日期 |
2009.06.30 |
申请人 |
VALTION TEKNILLINEN TUTKIMUSKESKUS |
发明人 |
RANTALA, ARTO |
分类号 |
G01N29/02;G01N27/02;G01N29/028;G01N29/24 |
主分类号 |
G01N29/02 |
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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