Complex permittivity and moisture measurements of oil palm fruits using an open-ended coaxial sensor

Autor: Elias Saion, Kaida Khalid, You Kok Yeow, Zulkifly Abbas, Abdul Halim Shaari, Jumiah Hassan
Rok vydání: 2005
Předmět:
Zdroj: IEEE Sensors Journal. 5:1281-1287
ISSN: 1530-437X
DOI: 10.1109/jsen.2005.859249
Popis: An open-ended coaxial sensor for the determination of complex permittivity and moisture content of oil palm fruits is presented in this paper. The measurement system consisting of the sensor and a PC-controlled vector network analyzer have been tested successfully on a range of oil palm fruits of various degrees of ripeness. The initial values of the complex permittivity were estimated using the admittance model of the sensor. The amount of moisture content was found by matching the values of permittivity from the quasistatic model with the permittivity of a dielectric mixture model using the moisture content values obtained from the standard oven drying method.
Databáze: OpenAIRE