DocumentCode
761349
Title
A leaky stripline moisture sensor
Author
Hamid, M.
Author_Institution
Dept. of Electr. Eng., South Alabama Univ., Mobile, AL, USA
Volume
41
Issue
4
fYear
1992
fDate
8/1/1992 12:00:00 AM
Firstpage
560
Lastpage
562
Abstract
A transmission line which excludes the ground plane has been designed using a conformal mapping technique. It is shown that by excluding the ground plane, the main field is the stray or fringing field, and hence the line can be effectively used as a leaky transmission line. A 50-Ω three-strip line was constructed and tested experimentally using a time-domain reflectometer and proved to be adequate as an immersion-type moisture sensor for wheat samples
Keywords
electric sensing devices; moisture measurement; strip line components; 50 ohm; conformal mapping; fringing field; ground plane; immersion sensor; leaky stripline moisture sensor; stray field; time-domain reflectometer; transmission line; wheat; Coaxial cables; Conformal mapping; Impedance; Moisture; Permittivity; Stripline; Strips; Testing; Time domain analysis; Transmission lines;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.155927
Filename
155927
Link To Document