And you ' re likely to “ assemble ” a faraday cage on a regular basis : the metal screen built into the glass of your microwave oven lets the microwave oven act as a faraday cage when the door is closed 你还可以在正常的基础上“装配”一个法拉第笼:微波炉玻璃中的金属屏让微波炉门关上时就构成了一个法拉第笼。