Abstract
The construction of a piezoelectric transducer for the study of the impact of fluidized particles is described. The device comprises a sensitive rigid surface directly connected to a ceramic bar with its two ends embedded and working in flexion. The associated measuring system employs commercial amplifiers followed by a multichannel analyser. The signals emitted by the transducer can thus be treated in three different ways. The characteristics of the transducer are determined by different calibration methods. In comparison with other similar devices previously described by other authors, the characteristics have been improved.
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