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Acousto-optical imaging of standing electromagnetic waves in multielement piezoelectric transducers of acoustoelectric devices

机译:声电设备的多元素压电换能器中驻存电磁波的声光成像

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摘要

An acousto-optical method for monitoring the electric-field distributions in multielement piezoelectric transducers for microwave devices, when standard probe techniques are unsuitable, is described. The method is based on the recording of the intensity of laser radiation that is diffracted by acoustic waves emitted by separate elements of a transducer. This method allows close matching of the transducer to the feeding microwave section, the characterization of the spatial uniformity of the transducer-excited acoustic flux, and the measurement of the dispersion and deceleration of electromagnetic signals in the transducer.
机译:描述了一种在标准探针技术不合适的情况下,用于监测微波器件多元件压电换能器中电场分布的声光方法。该方法基于记录由换能器的单独元件发射的声波衍射的激光辐射的强度。这种方法可以使换能器与馈电微波部分紧密匹配,可以表征换能器激发的声通量的空间均匀性,还可以测量换能器中电磁信号的色散和减速度。

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