Title :
Adapting the Unified Grain Moisture Algorithm to Commercial Instruments
Author :
Gillay, Zoltán ; Funk, David B.
Author_Institution :
Fac. of Food Sci., Corvinus Univ. of Budapest
Abstract :
The purpose of this paper was to describe further refinements of the unified grain moisture algorithm (a VHF dielectric method) that was developed by the United States Department of Agriculture - grain inspection, packers and stockyards administration. Over 6000 samples representing several crop years and over 50 grain types were used to assess sensitivities to instrument design parameters. Finite difference analysis was used to model test cell characteristics to yield further design guidance. Test cell mathematical models based on signal-flow-graphs and ABCD matrices were developed and compared. Measurement accuracy requirements were quantified and recommendations were made regarding successful design of compatible moisture meters
Keywords :
agricultural products; finite difference methods; microwave measurement; moisture measurement; signal flow graphs; ABCD matrices; United States Department of Agriculture; VHF dielectric method; commercial instruments; finite difference analysis; grain inspection; instrument design parameters; sensitivity analysis; signal-flow-graphs; test cell mathematical models; unified calibration; unified grain moisture algorithm; Calibration; Dielectric constant; Dielectric measurements; Impedance; Inspection; Instruments; Manufacturing; Moisture measurement; Testing; Transmission lines; VHF; dielectric; grain; moisture; sensitivity analysis; unified calibration;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328436
