Online microwave measurement of complex dielectric constant

• Main Author: Mercer, Sean R
• Other Authors: Downing, B J
• Format: Doctoral Thesis
• Language: English
• Published: University of Cape Town 2014
• Subjects: Electrical and Electronic Engineering
• Online Access: http://hdl.handle.net/11427/8342

Includes bibliographical references. === This dissertation examines the problem of on-line measurement of complex dielectric constant for the purpose of dielectric discrimination or product evaluation using microwave techniques. Various methods of signal/sample interaction were studied and consideration was given to the problem of sorting irregularly shaped discrete samples. The use of microwave transmission and reflection measurements was evaluated. The signal reflection methods were deemed to be best suited to applications with constant geometry feed presentation ( ie. a continuous, homogeneous product stream with little variation in surface geometry).