The measurement of rotary speeds of dynamo machines by the stroboscopic fork

Author(s): A. E. Kennelly ; S. E. Whiting
Publisher: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 May 1908
Volume: 27
Page(s): 727 - 742
ISSN (Paper): 0097-2444
DOI: 10.1109/PAIEE.1908.6742331



It is the object of this paper to call attention to what has already been accomplished by others in the direction of measuring rotary speeds with the stroboscopic fork, and also to a certain new modification of the principle which has been developed by the authors.