Study on the Frequency Bands Applied in Grains' Moisture Measurement

Abstract:

As a research hotspot, microwave technology is employed to measure grains moisture. Microwave devices based on various frequency bands appear in some measurement systems. These applications have no a theoretical foundation. This paper provides the principle of microwave technology used in moisture measurement. The factors, detection depth, horizontal and vertical resolutions, which are crucial to select the working frequency, are expounded. This paper also sets forth current application frequencies in moisture measurement systems. At the end, an advisable experiment framework is built to help select the frequency band preliminary for the moisture measurement.

• Periodical: Applied Mechanics and Materials (Volume 421)
• Pages: 438-443
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.421.438
• Online since: September 2013
• Authors: Hong Wei Wang, Qi Jun Li, Zhan Hou Wang
• Keywords: Frequency, Grain, Measurement, Moisture

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