Dielectric heating | 合法醫療器材資訊網
![Dielectric heating](https://i.imgur.com/6y29Lx7.jpg)
Radio-frequencyheating—Dielectricheating,alsoknownaselectronicheating,radiofrequencyheating,andhigh-frequencyheating,istheprocessin ...
![Dielectric heating](https://i.imgur.com/6y29Lx7.jpg)
Heating using radio waves
A microwave oven uses dielectric heating to cook food.Dielectric heating, also known as electronic heating, radio frequency heating, and high-frequency heating, is the process in which a radio frequency (RF) alternating electric field, or radio wave or microwave electromagnetic radiation heats a dielectric material. At higher frequencies, this heating is caused by molecular dipole rotation within the dielectric.
Mechanism[edit]Molecular rotation occurs in materials containing polar molecules having an electrical dipole moment, with the consequence that they will align themselves in an electromagnetic field. If the field is oscillating, as it is in an electromagnetic wave or in a rapidly oscillating electric field, these molecules rotate continuously by aligning with it. This is called dipole rotation, or dipol...
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