Investigation of an impact-excitation oscillator of piezoelectric transducers
Source abstract
Abstract
A model of a shock-excited oscillator was developed. This model takes the voltage across the transducer, which is induced by the flow of a pulse current through an electrical circuit consisting of a piezoelectric transducer (PET) and an electric load, into account. The shapes of the exciting voltage pulses and received echo pulses are calculated as functions of the parameters of the oscillator and a PET with an electrical load. It is shown that changes in the parameters of the PET and its electrical load may have a strong effect on the excitation-pulse shape, thus leading to unpredictable shapes of echo pulses. The factors that cause a strong dependence of the pulse shape on the thickness of the contact layer, when steel serves as the load, were analyzed. The main conclusions of the study were checked experimentally. Recommendations on the use of the investigation results are presented.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Engineering Technology and Methodologies · Engineering Diagnostics and Reliability · Material Properties and Applications
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References (4)
Show source-provided references
1. Gurvich, A.K. and Ermolov, I.N., Ul’trazvukovoi kontrol’ shvov (Ultrasonic Testing of Seams), Kiev: Tekhnika, 1972.
2. Mel’kanovich, A.F. and Konovalov, S.I., Operation of a transducer in the circuit of a voltage and current generator, Russ. J. Nondestr. Test., 2013, no. 12.
3. Mel’kanovich, A.F., Konovalov. S.I. A multilayer transducer that contains piezoelectric layers, Russ. J. Nondestr. Test., 2013, no. 7, pp. 387–398.
4. Mel’kanovich, A.F. and Konovalov, S.I., Low-frequency transducers that contain piezoelectric and passive layers, Russ. J. Nondestr. Test., 2013, no. 7, pp. 399–403.