Title :
A Bearing-Type High-Frequency Electro-Dynamic Ammeter
Author_Institution :
General Engineering Laboratory, General Electric Company, Schenectady, New York
fDate :
6/1/1938 12:00:00 AM
Abstract :
A jewel-bearing oscillating-ring electrodynamic ammeter is described and the method for calibrating it is explained. Data and calculations are presented to show that it is a standard of current at high frequencies. The frequency characteristics of three miniature thermocouple ammeters are measured with it.
Keywords :
Ammeters; Copper; Electrodynamics; Frequency measurement; Heating; Instruments; Laboratories; Solids; Testing; Wire;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1938.228331
