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

被引：49

作者：

Abbas, Z ^{[1
]}

Yeow, YK

Shaari, AH

Khalid, K

Hassan, J

Saion, E

机构：

[1] Univ Putra Malaysia, INSPEM, Serdang 43400, Malaysia

[2] Univ Putra Malaysia, Dept Phys, Serdang 43400, Malaysia

来源：

IEEE SENSORS JOURNAL | 2005年 / 5卷 / 06期

关键词：

coaxial sensor; microwave; moisture content; network analyzer; permittivity;

D O I：

10.1109/JSEN.2005.859249

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：1281 / 1287

页数：7

共 13 条

[1]

ARIFFIN A, 1990, PALM OIL RES I MALAY, V21, P30

[2] An improved technique for permittivity measurements using a coaxial probe [J].