DocumentCode :
1476936
Title :
Transactions section: Preprint of corresponding pages from the current annual AIEE transactions volume
Author :
Coutlee, K. G.
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Volume :
64
Issue :
11
fYear :
1945
Firstpage :
735
Lastpage :
740
Abstract :
MICA CAPACITORS by the millions have been used in radio, radar, and other important electronic equipment for our Armed Forces. The unprecedented demand has strained all our resources, and much time and money have been spent in efforts to solve the mica supply problem. One of these was a research project conducted by Bell Telephone Laboratories for the War Production Board. It was concerned with the development of electrical test methods to predetermine the quality of raw mica in terms of end-use requirements in various grades of capacitors. After over two years of work covering development, design, laboratory trial and an extensive commercial trial of two types of test instruments, this project has been brought to a successful conclusion. As the electrical method of classification makes possible the use of mica available in large quantities, but previously considered unsuitable for capacitors, the mica supply for capacitors is greatly increased. An estimated saving up to 60 per cent of the total amount of higher-quality mica used in capacitors is indicated.
Keywords :
Capacitance; Capacitors; Electrodes; Films; Laboratories; Standards;
fLanguage :
English
Journal_Title :
Electrical Engineering
Publisher :
ieee
ISSN :
0095-9197
Type :
jour
DOI :
10.1109/EE.1945.6441339
Filename :
6441339
Link To Document :
بازگشت