It's a cooling fan, principally the magnetron but everything else as well.to circulate the microwaves, and or to keep the magnatorn cool
No. There may be in some models a slow rotating gear reduction motor that turns a deflector (aluminum most likely) to redirect the microwaves in the oven chamber. There's also a turntable motor to rotate the food. The intention is to distribute the energy as evenly as possible. The fan is for cooling the transformer and magnetron. Other components may be inadvertently cooled by moving air as well. But the hottest parts are the transformer and the magnetron.to circulate the microwaves,
Basically because they are cheap to produce, were you expecting another kind?Why are these type of fans used in microwaves ?
Maybe a generic 12vdc fan used in power suppliesBasically because they are cheap to produce, were you expecting another kind?
Max.
No. There may be in some models a slow rotating gear reduction motor that turns a deflector (aluminum most likely) to redirect the microwaves in the oven chamber. There's also a turntable motor to rotate the food. The intention is to distribute the energy as evenly as possible. The fan is for cooling the transformer and magnetron. Other components may be inadvertently cooled by moving air as well. But the hottest parts are the transformer and the magnetron.
Hello theremy oven certainly has a plastic "fan" to stir the microwaves
You need to do this experiment: http://www.planet-science.com/categ...asure-the-speed-of-light-using-chocolate.aspxHello there
I think there is a bit of confusion concerning microwave propagation.
Using something called a “waveguide,” the magnetron sends these radio waves into the compartment. The food that is put into the microwave on the spinning plate is “cooked” evenly by the radiation bouncing around inside. These bouncing waves, when they hit the food, are absorbed and water contained in the food vibrates violently and that is what cooks the food it vibrates at microwave frequencies no fan is needed to disperse the microwave.
Don't be silly.I do like chocolate though.experiment
If wind could blow microwave radiation or any other form of radio communication then one plane in front of another could not hear the one behind him because his radio signal would be blown back.Just as a reference, why do you say its not for rotating the microwaves,
my oven certainly has a plastic "fan" to stir the microwaves, and no table, and a metal fan to cool the magnetron,
While I agree that the plastic in a typical microwave oven doesn't provide the stirring function, plastic (some dielectric types like Teflon) does affect microwave propagation. A typical way to convert a linear microwave feed-horn to circular polarization signal reception is to use a insulated plastic insert.If wind could blow microwave radiation or any other form of radio communication then one plane in front of another could not hear the one behind him because his radio signal would be blown back.
The plastic in a microwave oven does not affect the propagation of microwaves. Neither will wind blow the waves around.
Physics.
It is for cooling air circulation..I really do not think the picture of the fan I posted was for stirring the microwaves .. it's probably for cooling
Those usually have a shroud to more efficiently move the air out of the enclosure and are likely more expensive than the simple microwave fan.Maybe a generic 12vdc fan used in power supplies