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 produce a selected temperature rise by manual control of a variac or rheostat. A procedure is offered here for producing a linear temperature rise in a furnace at desired points called temperature controlled points. A power function dependent only on time and/or temperature is used. This function is a correspondence of current needed in the coil (to produce the desired temperature rise) versus time and/or temperature.
Proceedings of the Iowa Academy of Science
©1967 Iowa Academy of Science, Inc.
"Temperature Variation With Input Power in an Electrical Furnace,"
Proceedings of the Iowa Academy of Science, 74(1), 190-195.
Available at: https://scholarworks.uni.edu/pias/vol74/iss1/30