“dielectric heating”的概念、定义、翻译、参考文献-科学参考

dielectric heating

Physics

The heating of a dielectric material, such as a plastic, by applying a radio-frequency electric field to it. The most common method is to treat the material as the dielectric between the plates of a capacitor. The heat produced is proportional to V²fAϕ‎/t, where V is the applied potential difference, f its frequency, A is the area of the dielectric, t its thickness, and ϕ‎ is the loss factor of the material (related to its permittivity).

Electronics and Electrical Engineering

A method of heating an insulating material, such as a plastic, in which a high-frequency alternating electric field is applied to the material. The periodic alternation of the electric field causes an alternating dielectric polarization of the specimen, which results in the heating effect. Dielectric heating is usually effected by placing the specimen between specially shaped metal applicators, which form the electrodes of a capacitor, and applying the alternating field across them. A single applicator is sometimes used, applied to one surface of the specimen, when local heating only is required. The heating depth is the depth below the surface at which the heating effect due to the single applicator is observed. Compare induction heating.

单词	dielectric heating
释义	dielectric heating Physics The heating of a dielectric material, such as a plastic, by applying a radio-frequency electric field to it. The most common method is to treat the material as the dielectric between the plates of a capacitor. The heat produced is proportional to V²fAϕ‎/t, where V is the applied potential difference, f its frequency, A is the area of the dielectric, t its thickness, and ϕ‎ is the loss factor of the material (related to its permittivity). Electronics and Electrical Engineering A method of heating an insulating material, such as a plastic, in which a high-frequency alternating electric field is applied to the material. The periodic alternation of the electric field causes an alternating dielectric polarization of the specimen, which results in the heating effect. Dielectric heating is usually effected by placing the specimen between specially shaped metal applicators, which form the electrodes of a capacitor, and applying the alternating field across them. A single applicator is sometimes used, applied to one surface of the specimen, when local heating only is required. The heating depth is the depth below the surface at which the heating effect due to the single applicator is observed. Compare induction heating.
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