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United States Department of Agriculture

Agricultural Research Service

Research Project: SENSING METHODS & INSTRUMENTATION FOR RAPID DETERMINATION OF MOISTURE CONTENT... AND OTHER QUALITY ATTRIBUTES OF GRAINS, SEEDS, & NUTS

Location: Quality and Safety Assessment Research Unit

Title: Modeling the use of microwave energy in sensing of moisture content in vidalia onions

Authors
item Mckeown, Murat -
item Trabelsi, Samir
item Tollner, Ernest -

Submitted to: ASABE Annual International Meeting
Publication Type: Abstract Only
Publication Acceptance Date: January 18, 2013
Publication Date: July 21, 2013
Citation: Mckeown, M.S., Trabelsi, S., Tollner, E.W. 2013. Modeling the use of microwave energy in sensing of moisture content in vidalia onions [abstract]. ASABE Annual International Meeting. p.1708-1712.

Technical Abstract: Microwave moisture sensing provides a means to nondestructively determine the amount of water in materials. This is accomplished through the correlation of dielectric constant and loss factor with moisture content in the material. In this study, linear relationships between a density-independent function of the dielectric properties and moisture content of minced Vidalia onions. Multiple slopes were used dependent on prediction moisture range. This allowed prediction of moisture contents between 6% and 92%. Results showed prediction of moisture content with high accuracy. The measurements and techniques presented in this study constitute a foundation for the development of a stand-alone sensor.

Last Modified: 9/21/2014
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