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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.
A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. [1] This induces polar molecules in the food to rotate and produce thermal energy (heat) in a process known as dielectric heating .
This can be helpful to determine whether the oven is operating at the expected power levels indicated by labelling. Microwave leakage testing was removed in version 4 of the IET Code of Practice, to revert microwave oven testing to the same as any other appliance, but with emphasis put on the visual inspection of the door seal. [13]
IEC 60704 Household and similar electrical appliances – Test code for the determination of airborne acoustical noise; IEC 60705 Household microwave ovens – Methods for measuring performance; IEC 60706 Maintainability of equipment; IEC 60708 Low-frequency cables with polyolefin insulation and moisture barrier polyolefin sheath
In radio-frequency engineering and communications engineering, a waveguide is a hollow metal pipe used to carry radio waves. [1] This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as microwave ovens, radar sets, satellite communications, and microwave ...
A microwave oven passes microwave radiation at a frequency near 2.45 GHz (12 cm) through food, causing dielectric heating primarily by absorption of the energy in water. Microwave ovens became common kitchen appliances in Western countries in the late 1970s, following the development of less expensive cavity magnetrons. Water in the liquid ...
TrueCookPlus utilizes short numeric codes to control cooking. After the user enters the code, the TrueCookPlus adjusts the cooking to conform to USDA Food Safety and Inspection Service standards for food type, weight, packaging size/shape and starting state; taking into account static microwave oven variables such as wattage, cavity size, wall voltage, hot or cold oven state, elevation above ...
Everyday electronic devices and electrical appliances are surrounded by large fields which are evanescent; their operation involves alternating voltages (producing an electric field between them) and alternating currents (producing a magnetic field around them) which are expected to only carry power along internal wires, but not to the outsides ...