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Improved electronic readout circuit for resonant acoustic sensors

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3 Author(s)
D. Rocha ; Inst. of Sensor & Actuator Syst., Vienna Univ. of Technol., Austria ; V. Ferrari ; B. Jakoby

A novel circuit for the compensation of the spurious admittance of TSM (thickness shear mode) resonator sensors is proposed. It compensates both the spurious capacitance and conductance, and as such is well suited for measurement in conductive liquids. Design equations, simulations and measurement results of a bread-boarded prototype are presented.

Published in:

Sensors, 2004. Proceedings of IEEE

Date of Conference:

24-27 Oct. 2004