微波炉会不会很耗电?

2025-03-16 18:17:22
推荐回答(1个)
回答1:

微波炉耗不耗电取决于你买的微波炉的规格,但是一般来说微波炉耗电都不大。

因为传统的烹饪方法是先用火加热锅子,然后由锅子将热量传递到食品而达到烹饪的目的,这样锅子必然消耗大量的能源;而微波炉的烹饪器皿是用透射微波的材料制成的,微波透射过盛装食品的器皿,可直接使食品受热。所以利用微波炉烹饪食品,可以大大地缩短烹饪时间,进而节省能源。

微波炉,是一种用微波加热食品的现代化烹调灶具,由美国的斯本塞发明。微波是一种电磁波。微波炉由电源,磁控管,控制电路和烹调腔等部分组成。电源向磁控管提供大约4000伏高压,磁控管在电源激励下,连续产生微波,再经过波导系统,耦合到烹调腔内。在烹调腔的进口处附近,有一个可旋转的搅拌器,因为搅拌器是风扇状的金属,旋转起来以后对微波具有各个方向的反射,所以能够把微波能量均匀地分布在烹调腔内。

微波加热的原理是当微波辐射到食品上时,食品中总是含有一定量的水分,而水是由极性分子组成的,这种极性分子的取向将随微波场而变动。微波炉的功率范围一般为500~1000瓦。从而加热食物。

这种电磁波的能量不仅比通常的无线电波大得多,而且还很有“个性”,微波一碰到金属就发生反射,金属根本没有办法吸收或传导它;微波可以穿过玻璃、陶瓷、塑料等绝缘材料,但不会消耗能量;而含有水分的食物,微波不但能透过,而且能量也会被吸收。微波是指波长为0.001~1米的无线电波,其对应的频率为30000兆赫到300兆赫。为了不干扰雷达和其他通信系统,微波炉的工作频率多选用915兆赫或2450兆赫。

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