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Author Sato, I. ♦ Otani, K. ♦ Oguchi, S. ♦ Hoshiya, K.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1988
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Heat transfer ♦ Helium ♦ Coils ♦ Thermal resistance ♦ Magnetic heads ♦ Distortion measurement ♦ Pollution measurement ♦ Temperature dependence ♦ Magnetic liquids ♦ Brushless DC motors
Abstract Experimental results of heat transfer in helium-gas-enclosed disk enclosure (DE) are described. The following results were obtained. (1) The windage loss of a DE containing helium gas is about one fifth of that of a DE containing air. This effectively decreases DE temperature and disk runout. (2) The temperature increase of the positioner coil in helium gas is about one half of that in air. (3) Smaller windage loss and high conductivity minimize helium gas locational temperature dependence.
Description Author affiliation: Applied Electron. Lab., NTT, Tokyo, Japan (Sato, I.; Otani, K.; Oguchi, S.; Hoshiya, K.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1988-05-11
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 299.96 kB
Page Count 5
Starting Page 1452
Ending Page 1456


Source: IEEE Xplore Digital Library