dielectric heating

Thân thiện

A technician uses dielectric heating to seal a plastic package.

Definition

1. Noun:
   • Heating of an insulator by a high-frequency electric field: A method of generating heat within a non-conductive material (an insulator or dielectric) by subjecting it to a rapidly alternating, high-frequency electromagnetic field. The heat is produced internally due to molecular friction as the material's molecules attempt to align with the changing field.

Usage Examples

• Noun:
  • Dielectric heating is commonly used in industrial processes to dry wood or plastic.
  • The food industry employs dielectric heating for rapid, uniform cooking.
  • A key advantage of dielectric heating is that it heats the material uniformly from the inside.

Advanced Usage

• "to subject a material to dielectric heating": to apply this specific heating process to a material.
  • The composite material was subjected to dielectric heating to cure the resin.
• "dielectric heating system/apparatus": equipment designed for this purpose.
  • The laboratory installed a new dielectric heating system for its materials testing.

Variants and Related Words

• Dielectric (n/adj): An insulating material or relating to such a material.
  • Porcelain is an excellent dielectric.
• Induction Heating: A different heating process for conductive materials, often contrasted with dielectric heating.
• RF Heating (Radio Frequency Heating): A broader term that can include dielectric heating.

Synonyms

• Capacitance heating: A less common synonym emphasizing the role of electrical capacitance in the process.
• High-frequency heating: A general term that may refer to dielectric heating or induction heating, depending on context.

Related Phrases

(Note: As a technical compound noun, "dielectric heating" itself functions as a key term. Related phrases typically describe its application.) - To achieve heating via dielectric loss: A more technical description of the process. - The polymer is molded using heat achieved via dielectric loss.

Related Idioms

(This is a precise technical term with no common idiomatic usage.)

Học thuật

Noun

1. heating of an insulator by a high-frequency electric field