DocumentCode
1409813
Title
Open Microwave Resonators for Ionized Wake Measurement
Author
Hayami, Richard A. ; Kelley, Kevin J.
Author_Institution
GM Defense Research Laboratories, General Motors Corporation, Santa Barbara, Calif.
Issue
2
fYear
1967
fDate
3/1/1967 12:00:00 AM
Firstpage
339
Lastpage
348
Abstract
A method is described for measuring changing ionization levels by observing the phase shift of a microwave signal which has passed through an open resonator while the resonator is being perturbed by the ionization. The measurement range is 109 to 1011 e/cm3 with a time resolution of 1 ¿s and a spatial resolution of 2.5 cm. Methods of measuring the phase shift and converting the phase information to useful results are detailed. Sources of error are also considered.
Keywords
Density measurement; Electrons; Ionization; Microwave measurements; Phase measurement; Plasma density; Plasma measurements; Projectiles; Spatial resolution; Transient response; Electron density; hypersonic; ionization; microwave; perturbation; projectiles; resonator; wakes;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.1967.5408760
Filename
5408760
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