发明名称 |
Mikrosensor mit einer Resonatorstruktur |
摘要 |
The invention relates to a microsensor with a resonator structure, which is brought to oscillation by first electrical signals and emits second electrical signals in accordance with the quantity to be measured. For thermally stimulating the production of oscillations on the resonator structure a heating element is arranged on said structure to which at least one of the first electrical signals is transmitted. For the thermal stimulation of lateral oscillations in a microsensor having a resonator structure the invention provides for the microsensor at the foot of at least one oscillating part of the resonator structure to have at least two areas which are thermally separated from each other by an area of reduced thermal conductivity and for the heating element to be positioned on one of these areas. Because of this arrangement the resonator structure can be stimulated to produce lateral oscillations when the heating element is supplied with corresponding current pulses. In an advantageous version a pick-up element for detecting the amplitude of oscillation is positioned in at least one of the other areas. |
申请公布号 |
DE19812773(A1) |
申请公布日期 |
1999.09.30 |
申请号 |
DE1998112773 |
申请日期 |
1998.03.24 |
申请人 |
DAIMLERCHRYSLER AG;FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
SEIDEL, HELMUT;ALKELE, MATTHIAS;PRECHTEL, ULRICH;NAGLER, OLIVER;KUEHL, KARL |
分类号 |
G01L1/10;G01C19/56;G01P15/097;G01P15/10;H01L29/84;(IPC1-7):B06B1/02;H01L49/00 |
主分类号 |
G01L1/10 |
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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