Microwave modeling and experiments for non destructive control improved quality of fruit

Dielectric properties or permittivity of agricultural products, such as fruits, are of interest for several reasons. The influence on the complex permittivity of cultivars (varieties), maturation, quality indices (e.g. soluble solids content), moisture or temperature can be used for sensing and monitoring for developing new generation of sensors for improving quality control of agricultural products. The application here concerns the nondestructive control of apples. The main idea of the study is to model, simulate and measure the scattered field in far and near-field zones (excluding the interactive zone) regions of apples to check the feasibility of monitoring apple growth, maturation, quality indices and defects of from scattered field measurements.

[1]  Monai Krairiksh,et al.  Remote sensing of the physical qualities of fruits , 2016, 2016 IEEE Radio and Antenna Days of the Indian Ocean (RADIO).

[2]  M. Castro-Giraldez,et al.  Development of a dielectric spectroscopy technique for determining key chemical components of apple maturity. , 2010, Journal of agricultural and food chemistry.

[3]  M. Krairiksh,et al.  A reflectometer using antenna mixers , 2015, 2015 IEEE Conference on Antenna Measurements & Applications (CAMA).

[4]  Alejandro Garcia Lamperez,et al.  Effect of Material Parameters on the Resonant Frequencies of a Dielectric Object , 2013, IEEE Antennas and Wireless Propagation Letters.

[5]  S. Kays,et al.  10-1800-MHz dielectric properties of fresh apples during storage , 2007 .

[6]  Monai Krairiksh,et al.  Wireless Sensor Network for Monitoring Maturity Stage of Fruit , 2011, Wirel. Sens. Netw..

[7]  Friedrich Kremer,et al.  Dielectric spectroscopy – yesterday, today and tomorrow , 2002 .

[8]  Wenchuan Guo,et al.  Maturity effects on dielectric properties of apples from 10 to 4500 MHz , 2011 .

[9]  Francisco Manzano-Agugliaro,et al.  Fruit and Vegetable Quality Assessment via Dielectric Sensing , 2015, Sensors.

[10]  Stuart O. Nelson,et al.  Dielectric spectroscopy in agriculture , 2005 .

[12]  Stuart O. Nelson,et al.  Electrical Properties of Agricultural Products-A Critical Review , 1973 .

[13]  K. Uchino,et al.  Nondestructive Measurement of Sugar Content in Apples by Millimeter-Wave Reflectometry , 2012 .

[14]  Monai Krairiksh,et al.  Investigation of the natural resonant frequencies of palmyrah palm juice for quality control , 2015, 2015 IEEE Conference on Antenna Measurements & Applications (CAMA).