用介电光谱法测定饼干中的水分含量

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2003-10-19 DOI:10.1109/CEIDP.2003.1254892

X. B. Li, A. Zyuzin, Alexander V. Mamishev

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引用次数: 23

摘要

食品中水分的在线测量与控制需要实时无创水分传感技术。本研究采用介电光谱法测定饼干面团中的水分。实验采用同心圆环形介质传感器，频率范围为10hz ~ 10khz。该系统基于线性模型进行校准，其中电容对含水率的功能依赖是确定的。校准系统允许在线水分含量传感和水分分布剖面成像。

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Measuring moisture content in cookies using dielectric spectroscopy

Real-time non-invasive moisture content sensing techniques are needed for online moisture measurement and control in food products. In this investigation, a dielectric spectroscopy based system is used for moisture determination in cookie dough. Experiments were conducted with a concentric ring dielectric sensor in the frequency range from 10 Hz to 10 kHz. The system is calibrated based on a linear model, where the functional dependence of capacitance on moisture content is determined. The calibrated system allows for both online moisture content sensing and moisture distribution profile imaging.

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来源期刊

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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