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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.
If the bird is small enough, remove the plastic wrap and place it in a microwave-safe dish. Push the defrost button, punch in the weight of the bird and let the microwave work its magic.
Defrosting is controlled by an electric or electronic timer. For every 6, 8, 10, 12 or 24 hours of compressor operation, it turns on a defrost heater for 15 minutes to half an hour. The defrost heater, having a typical power rating of 350W to 600W, is often mounted just below the evaporator in top and bottom-freezer models. [2]
These microwave transmissions use emitted power typically from 0.03 to 0.30 W, radiated by a parabolic antenna on a narrow beam diverging by a few degrees (1 to 3-4). The microwave channel arrangement is regulated by International Telecommunication Union and local regulations (ETSI, FCC).
Defrosting a freezer with an improvised water collection method. In refrigerators, defrosting (or thawing) is the removal of frost and ice.. A defrosting procedure is generally performed periodically on refrigerators and freezers to maintain their operating efficiency.
A microwave power meter is an instrument which measures the electrical power at microwave frequencies typically in the range 100 MHz to 40 GHz.. Usually a microwave power meter will consist of a measuring head which contains the actual power sensing element, connected via a cable to the meter proper, which displays the power reading.
The microwave heat distribution is the distribution (allocation) of the heat release inside the microwave absorptive material irradiated with high intensive microwaves.The pattern of microwave heat distribution depends on many physical parameters, which may include the electromagnetic field, the specific absorption rate and structure of the processed material, the geometrical dimensions of the ...
Low-power microwave sources use solid-state devices such as the field-effect transistor (at least at lower frequencies), tunnel diodes, Gunn diodes, and IMPATT diodes. [16] Low-power sources are available as benchtop instruments, rackmount instruments, embeddable modules and in card-level formats.