详情

Just like in the production of wristwatches and clocks, quartz crystals are also widely used in smart electronics because it generates current on its surface when bent or compressed. Quartz crystals have been used for years to give an accurate frequency for all radio transmitters, radio receivers, GPS transmitters, and computers. This accuracy comes from the fact that quartz crystal is unaffected by most solvents, and remains crystalline to hundreds of degrees Fahrenheit.

就像在石英手表和石英钟表的制程中一样，石英晶体也广泛应用于智能电子产品，因为它，具备压电效应，即：在弯曲或压缩时会在其表面产生电流。石英晶体多年来一直被用来为所有无线电发射机、无线电接收机、GPS发射机和计算机提供准确的频率。这种准确性来自于石英晶体不受大多数溶剂的影响，在几百华氏度时仍保持结晶状态。

压电效应：

某些电介质在沿一定方向上受到外力的作用而变形时，其内部会产生极化现象，同时在它的两个相对表面上出现正负相反的电荷。当外力去掉后，它又会恢复到不带电的状态，这种现象称为正压电效应。当作用力的方向改变时，电荷的极性也随之改变。相反，当在电介质的极化方向上施加电场，这些电介质也会发生变形，电场去掉后，电介质的变形随之消失，这种现象称为逆压电效应。