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Measuring the volume charge in dielectric films using single frequency electro-acoustic waves

机译:使用单频电声波测量介电膜中的体积电荷

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摘要

An electro-acoustic method for measuring volume charge distributions in dielectric films (50 μm-0.2 mm thick) is described. A high voltage (>1 kV) sinusoidal signal (frequency ~ 2 kHz) is applied across the dielectric sample. The charges inside the dielectric material will mechanically respond to the input electric signal and excite acoustic waves. The acoustic waves can be detected and measured using a piezoelectric sensor. By analyzing the received acoustic signal, we are able to compare the amount of charge in various samples.
机译:描述了一种用于测量介电膜(50μm-0.2mm厚)中体积电荷分布的电声方法。在电介质样品上施加一个高电压(> 1 kV)正弦信号(频率〜2 kHz)。介电材料内部的电荷将机械响应输入的电信号并激发声波。可以使用压电传感器检测和测量声波。通过分析接收到的声音信号,我们能够比较各种样本中的电荷量。

著录项

  • 来源
    《Journal of Materials Research》 |2014年第4期|501-508|共8页
  • 作者单位

    Plasma Processing and Technology Laboratory and Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706;

    Commet LLC, Fitchburg, Wisconsin 53711;

    Department of Chemical and Biological Engineering and Rheology Research Center, University of Wisconsin, Madison, Wisconsin 53706;

    Plasma Processing and Technology Laboratory and Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706;

    Department of Electrical Engineering Stanford University, Stanford, California 94305;

    Plasma Processing and Technology Laboratory and Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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