Title :
A Homopolar Tachometer for Servomechanism Application
Author :
Johnson, Craig C.
Author_Institution :
North American Aerophysics Laboratory, Downey, Calif.
Abstract :
Certain design considerations, construction detail, and performance data are presented for a small disk-type homopolar tachometer which was developed as a low inertia, low noise, low friction rate signal source for incorporation into a high-performance servomechanism. Performance characteristics reveal that a unit of this type has certain advantageous features which recommend it over conventional tachometers, although a low signal output level is an inherent disadvantage.
Keywords :
Conductors; DC generators; Friction; Induction generators; Magnetic fields; Magnetic flux; Servomechanisms; Shafts; Signal design; Voltage;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1952.274015
