Accession Number:

AD0266552

Title:

A Design Study of a Small Homopolar Motor,

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS

Personal Author(s):

Report Date:

1961-01-01

Pagination or Media Count:

1.0

Abstract:

The characteristics of a small homopolar motor are examined in detail with special emphasis given to optimizing liquid metal brush designs. A detailed account is given of tests conducted with an experimental brush rig to determine the effect of various parameters on hydraulic friction loss and to investigate stability and contact characteristics. The conclusions gained from these tests are used to design a liquid metal brush for the proposed motor. Use is made of a theoretical design procedure that minimizes the total power loss in the motor for a given power output and speed of operation. The parameters obtained for an operating speed of 900 rpm and a nominal power output of 1 kw are used in the design presented. The voltage and current ratings are 0.450 volts and 2340 amps, respectively, and an efficiency of 84 is predicted. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE