发明名称 |
BEURTEILUNG DER FLÜSSIGKEITSZUSAMMENSETZUNG |
摘要 |
A method for identifying a change in the composition of a liquid, comprising the steps of applying a time varying electrical or electromagnetic input signal to the liquid in a range of frequencies encompassing a resonant frequency of an electrical circuit comprising the liquid; measuring an impedance quantity of the electrical circuit comprising the liquid by means of the output signal as a function of the frequency of the time varying electrical or resonant frequency input signal in said range of frequencies; determining a resonant frequency of the electrical circuit comprising the liquid; after a change in the composition of the liquid, measuring variation in the impedance quantity at or near to the previously determined resonant frequency of the electrical circuit comprising the liquid; and relating the variation in the impedance quantity at or near to the resonant frequency of the electrical circuit comprising the liquid to a change in the composition of the liquid. |
申请公布号 |
DE69808268(T2) |
申请公布日期 |
2003.06.12 |
申请号 |
DE1998608268T |
申请日期 |
1998.04.16 |
申请人 |
KAIKU LTD., MANCHESTER |
发明人 |
KAIKU LIMITED, MANCHESTER AIRPORT |
分类号 |
G01N33/00;G01N27/02;(IPC1-7):G01N27/02 |
主分类号 |
G01N33/00 |
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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