微波传播速度的测量讲解VIP专享VIP免费

微波传播速度的测量摘要 : 微波是指频率为300MHz-300GHz的电磁波，是无线电波中一个有限频带的简称，即波长在 1 米（不含 1 米）到 1 毫米之间的电磁波，是分米波、厘米波、毫米波和亚毫米波的统称。微波频率比一般的无线电波频率高，通常也称为“超高频电磁波”。微波作为一种电磁波也具有波粒二象性。微波的基本性质通常呈现为穿透、反射、吸收三个特性。 对于玻璃、塑料和瓷器， 微波几乎是穿越而不被吸收。对于水和食物等就会吸收微波而使自身发热。而对金属类东西， 则会反射微波。 本实验通过对微波频率和波长的测量进而求出微波在空气中的传播速度，并与光速进行对比。关键词 : 电磁波；无线电波；波速；波粒二象性。Abstract The microwave is a frequency of 300MHz-300GHz electromagnetic radio waves in a limited frequency band referred,, the wavelength in meters (excluding 1 meter) to 1 mm between the electromagnetic waves, decimetric centimeter wavecollectively referred to as the millimeter and submillimeter. Microwave frequencies higher than the average radio frequency, usually referred to as "ultra-high-frequency electromagnetic waves. Microwave as an electromagnetic wave with wave-particle duality. The basic nature of the microwave is generally present for penetrating reflection and absorption of the three characteristics. For glass, plastic and porcelain, microwave almost through without being absorbed. For water and food will absorb microwave leaving the self-heating. Metal type of thing will be reflected microwaves. In this study, by measurement of microwave frequency and wavelength and then calculate the propagation velocity of the microwave in the air, compared with the speed of light. Keywords:electromagnetic wave; radio waves; wave velocity; wave-particle duality. 微波比其它用于辐射加热的电磁波，如红外线、远红外线等波长更长，因此具有更好的穿透性。微波透入介质时，由于介质损耗引起的介质温度的升高，使介质材料内部、外部几乎同时加热升温，形成体...