high-frequency preheating

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• radio-frequency heating — ▪ physics Introduction       process of heating (heat) materials through the application of radio waves of high frequency i.e., above 70,000 hertz (cycles per second). Two methods of radio frequency heating have been developed. One of these,… …   Universalium

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• dielectric heating — Elect. the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field. [1940 45] * * * ▪ physics also called  Capacitance Heating,         method by which the temperature of an… …   Universalium

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