Equivalent Circuit of Soft Heating Method Using Metal-Ring and Temperature-Sensitive Ferrite Rod.

Abstract

A Soft Heating method using metal-ring and temperature-sensitive ferrite rod is proposed for increasing the heat generation at room temperature. Typical temperature characteristics of the heat quantity have been obtained experimentally. Furthermore, by introducing an equivalent circuit for the Soft Heating, the following two properties have been clarified: 1) Generating heat at room temperature is determined mainly by the demagnetizing factor of ferrite rod; 2) Residual heat over the Curie temperature can be decreased by increasing the apparent permeability of ferrite rod.