Process composition monitoring at microwave frequencies: a waveguide cutoff method and calibration procedure

Author

Jean, Buford Randall

Author_Institution

Rhino Analytics, Austin, TX, USA

Volume

55

Issue

1

fYear

2006

Firstpage

180

Lastpage

186

Abstract

A versatile and robust microwave instrument for measuring the composition of various mixtures of known constituents is presented. Measurement is achieved by examining the propagation cutoff characteristics of a section of waveguide that is typically comprised of a section of process piping that is filled with the material under test. A calibration method that is simple to implement for industrial applications is presented and described in detail. Data from several successful commercialized applications are included. The microwave cutoff method offers significant advantages over more traditional microwave-measurement techniques.

Keywords

calibration; dielectric measurement; microwave measurement; process monitoring; calibration procedure; dielectric measurements; industrial applications; microwave frequencies; microwave instrument; microwave measurements; process composition monitoring; process monitoring; process piping; propagation cutoff characteristics; spectroscopy; waveguide cutoff method; Calibration; Commercialization; Instruments; Materials testing; Microwave frequencies; Microwave measurements; Microwave propagation; Microwave theory and techniques; Monitoring; Robustness; Dielectric measurements; microwave measurements; process monitoring; spectroscopy; waveguides;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2005.860860

Filename

1583879