Abstract

A low-cost microwave moisture sensor operating at a single frequency for instantaneous and nondestructive determination of moisture content in peanut kernels from microwave dielectric measurements on peanut pods was developed and tested. The sensor operates at a frequency of 5.8 GHz and uses the principle of free-space transmission measurement of the dielectric properties. Moisture content is determined independent of bulk density with a permittivity-based algorithm.

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