Пьезоэлектрический сенсор интеллектуальной системы контроля шухмоподобным сигналом

Abstract

Modes of electroacoustic and acoustoelectric converting of random signals by piezoelectric sensor as a flat piezoelement are studied/. The wave equation for distribution of mechanical shift along the thickness of the given element, taking into account the acoustic voltage (vibration radiation mode) and the controlled mechanical shift (reception mode) are presented in a form ofFurier stochastic integral. The solvations of the equation have a view of the relations between spectral densities of piezoelement shift and voltage on electrodes. The dependence of the given relation (spectrum transformation coefficient) from the frequency of random signal and piezoelectric sensor parameters are analyzed.