Title :
Microwaves used to observe commutator and slip ring surfaces during operation
Author :
Ryan, A. H. ; Summers, S. D.
Author_Institution :
United States Naval Research Laboratory, Washington, D. C.
fDate :
3/1/1954 12:00:00 AM
Abstract :
A method of using short-wave radio (microwaves) and waveguide components for observing and recording the surface irregularities of commutators and slip rings during the operation of the associated machines is presented. If reasonable care is exercised, measurements of surface irregularities in the order of 1/2 mil or less may be obtained.
Keywords :
Bars; Brushes; Commutation; Detectors; Oscilloscopes; Strips; Surface waves;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1954.6439313
