An Automatic Controller for Radiofrequency Induction-Heating Units
- 1 April 1953
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 24 (4) , 281-282
- https://doi.org/10.1063/1.1770684
Abstract
A simple, rugged, and adaptable device for regulating the power provided by an industrial rf generator for induction heating is described. An rf voltage picked up by a small coil near the work coil is rectified, opposed by an adjustable dc reference voltage, and the difference‐voltage fed to a commercial chopper‐type dc amplifier and servo motor. The motor drives the power‐controlling element of the generator in such a direction as to reduce the error signal to zero. Regulation of temperature within ±½ degree at 1000°C has been achieved where system is not disturbed in any way.Keywords
This publication has 2 references indexed in Scilit:
- Temperature Regulation in Induction HeatingReview of Scientific Instruments, 1951
- The Regulation of Temperature in the Application of High Frequency Induction Heating to Thermodynamic MeasurementsReview of Scientific Instruments, 1949