DEPENDENCE OF THE PIEZOELECTRIC TRANSDUCER REACTANCE ON THE MECHANICAL PARAMETERS OF ITS LOAD

Igor Popov

2013 , VOLUME 13, NUMBER 5 ( SEPTEMBER-OCTOBER )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
D.Sc., Prof.

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DEPENDENCE OF THE PIEZOELECTRIC TRANSDUCER REACTANCE ON THE MECHANICAL PARAMETERS OF ITS LOAD

I. Popov

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Abstract

It is shown that the inertial load of the piezoelectric transducer may be provided as an inductive resistance in its power supply circuit, and an elastic load - in the form of a capacitive one. The models of vibrating systems with elements of different physical nature are suggested, in which free harmonic oscillations may appear. It is shown that in the inert-capacitive (mC) oscillatory system a mutual conversion of electric field energy of the capacitor into the solid element kinetic energy takes place; in an elastically-inductive (kL) oscillatory system a mutual conversion of solenoid magnetic field energy into potential energy of the spring takes place.

Keywords: inertial inductance, elastic capacitance

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