Single Element Excitation and Detection of (Micro-)Mechanical Resonators

Tilmans, Harrie A.C. and IJntema, Dominicus .J. and Fluitman, Jan H.J (1991) Single Element Excitation and Detection of (Micro-)Mechanical Resonators. In: 1991 International Conference on Solid-State Sensors and Actuators - Transducers '91, 24-28 June 1991, San Francisco, CA, USA.

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Abstract:	The authors describe a single-element approach for the excitation and detection of the vibrational motion of (micro-)mechanical resonators. An equivalent electrical one-port network is derived for an electrostatically and a piezoelectrically driven resonator. In this way, the effect of the mechanical resonator is transformed into the electrical domain and can easily be accounted for in a circuit simulation. A detection circuit, based on an (on-chip) bridged design, is proposed as a way to compensate for the parasitic parallel load of the one-port. A criterion is given for the accepted level of unbalance of the bridge if a minimal phase shift of 90° in the transfer characteristic around resonance is required
Item Type:	Conference or Workshop Item
Copyright:	©1991 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Transducers Science and Technology (TST)
Link to this item:	http://purl.utwente.nl/publications/17152
Official URL:	http://dx.doi.org/10.1109/SENSOR.1991.148931
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