Transactions on Transport Sciences 2010, 3(1):23-28 | DOI: 10.2478/v10158-010-0004-2

Optimizing the Location of Piezoelectric Sensors

I. Plšková*, Z. Chobola, M. Matysík
Department of Physics, Faculty of Civil Engineering, Brno University of Technology, Brno, Czech Republic

Piezoelectric sensors appear to be best suited for picking up acoustic signals thanks to their high sensitivity over a wide frequency range, frequency response stability, design compactness, and reliability. Their design differs from sensor to sensor, depending on the type of the measurement to be carried out. Piezoelectric sensors are manufactured on the basis of crystals and polarized dielectrics. They feature, above all, a very good signalto-noise ratio, a fast response to the load change and a wide range of operating temperatures. Along with the measurements of the noise voltage spectral density, the sensor sensitivity measurements are of high importance not only for the development of acoustic methods but also for the sensor application and, above all, checkout. The present paper deals with our test results of piezoelectric sensors from the following viewpoints: frequency range, response uniformity, sensitivity, and optimum location of a selected sensor with regard to the amplitude of the response signal from a ceramic tile.

Keywords: piezoelectric sensor, ceramic tile, Impact-echo method.

Published: March 1, 2010  Show citation

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Plšková, I., Chobola, Z., & Matysík, M. (2010). Optimizing the Location of Piezoelectric Sensors. Transactions on Transport Sciences, 3(1), 23-28. doi: 10.2478/v10158-010-0004-2
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