Why do microwave ovens need to rotate?
The principle of microwave heating is simply: when microwave radiation to food, food is always contain a certain amount of water, and water is a polar molecule (molecular charge center, even when there is no outer field is not coincidence) composition, the orientation of polar molecules with microwave field change. The movement of molecules of polar water in food. And the interaction between neighboring molecules creates a friction like phenomenon that increases the temperature of the water, and therefore the temperature of the food rises. The food heated by microwave is heated at the same time because of its internal heating, so that the whole object is heated evenly and the heating rate is fast. It heats up the food 5cm at 2 billion 450 million times per second, speeding up molecular operations.
Generally speaking, microwave is a kind of high frequency electromagnetic waves, which itself does not generate heat in the universe, nature is everywhere in nature but the microwave, microwave, because it is not scattered, heating food. The microwave oven is using the magnetron inside, electrical energy into microwave food, to the oscillation frequency of 2450MHZ penetration, when the microwave is absorbed by food, polar molecules in food (such as water, fat, protein, sugar, etc.) are attracted to 2 billion 450 million times per second, the speed of the fast oscillation macro shock is food heated.
A microwave oven is a cooking appliance that uses food to absorb microwave energy in a microwave field to heat itself. Microwave generation in a microwave oven microwave generator set up microwave electric field in the microwave cavity, and take some measures to make the distribution of microwave electric field as uniform as possible in the cavity, the food in the microwave field, the cooking time and microwave field strength is controlled by control center, to carry out a variety of cooking process.
A microwave oven tray rotates to allow food to be evenly heated.
