用微波测量颗粒材料的介电特性来测定其体积密度

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI:10.1109/IMTC.2001.929529

S. Trabelsi, A. Kraszewski, S. Nelson

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引用次数: 6

摘要

提出了一种通过测量颗粒材料在微波频率下的介电特性来测定其体积密度的介电方法。采用复平面表示的介电特性，将其归一化为体积密度，在7 GHz频率下生成谷物和种子在宽湿度和温度范围内的校准方程。

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Determining bulk density of granular materials from microwave measurements of their dielectric properties

A dielectric method for determining bulk density of granular materials from measurement of their dielectric properties at microwave frequencies is presented. A complex-plane representation of the dielectric properties, normalized to bulk density, is used to generate calibration equations at 7 GHz for cereal grain and seed over wide ranges of moisture content and temperature.

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来源期刊

Journal of Measurement Science and Instrumentation

自引率

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发文量

927