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Document Type

Research

Abstract

Temperature control of an electrical furnace is generally accomplished by means of a servo mechanism. For simple laboratory experiments, however, it may be desirable to control temperature by manual adjustment of power and thus avoid the expense of building a servo. A procedure is offered here for producing a linear temperature rise in an electrical furnace by a time-dependent power function, Q (t). This function is a correspondence of power needed in the heating coil (to produce the desired rate of temperature rise) vs time. A computer analyzes the characteristics of the furnace, calculates the function, and tabulates it. By an iteration of the procedure, the deviation of the temperature-time curve from linearity can be decreased from about 15% to less than 1%.

Publication Date

1970

Journal Title

Proceedings of the Iowa Academy of Science

Volume

77

Issue

1

First Page

379

Last Page

384

Copyright

© Copyright 1970 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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