Implementation of dual-frequency RF impedance technique for on-line moisture sensing in single in-shell pecans

An automated computer-controlled pecan feeder, singulation, and conveying system with a parallel-plate sensor for impedance measurements on single in-shell pecans in stationary contact was developed under a joint research project between engineers in Israel and in the United States. An inexpensive e...

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Bibliographic Details
Published inApplied engineering in agriculture Vol. 12; no. 4
Main Authors Schmilovitch, Z. (Volcani Center, Bet Dagan, Israel.), Nelson, S.O, Kandala, C.V.K, Lawrence, K.C
Format Journal Article
LanguageEnglish
Published 1996
Subjects
AMANDE DE LA GRAINE
APLICACIONES DEL ORDENADOR
APPLICATION DES ORDINATEURS
AUTOMATISATION
AUTOMATIZACION
CLASIFICACION DE PRODUCTOS
CLASSEMENT
CONCEPTION
CONTENIDO DE HUMEDAD
CONTROLE DE PERFORMANCE
DISENO
GERMEN
MEDICION
MESURE
NOIX DE PECAN
PACANA
PROCESAMIENTO DE DATOS
PROPIEDADES FISICO-QUIMICAS
PROPRIETE PHYSICOCHIMIQUE
PRUEBAS DE RENDIMIENTO
TENEUR EN EAU
TRAITEMENT DES DONNEES
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Summary:An automated computer-controlled pecan feeder, singulation, and conveying system with a parallel-plate sensor for impedance measurements on single in-shell pecans in stationary contact was developed under a joint research project between engineers in Israel and in the United States. An inexpensive electronic RF impedance-measuring unit was developed and tested under on-line conditions. The electronic unit was calibrated to provide kernel moisture contents in individual pecans with standard errors of 1.1% m.c (moisture content), as compared with moisture contents determined by a vacuum-oven reference method. The prototype automatic conveyor and moisture sensing system was capable of measuring moisture content of individual pecans at rates of up to three per second
Bibliography:Q02
9703024
U10
E70
ISSN:0883-8542
1943-7838
DOI:10.13031/2013.25673