石英晶体毛片

石英晶体毛片是一种薄而尺寸精确的合成石英晶体切片，按特定晶向（如AT切、SC切或BT切）切割，以获得所需的频率和温度稳定性特性。当通过附加电极施加交变电场时，由于压电效应，它以其固有谐振频率机械振动，为电子电路提供稳定的频率基准。

石英晶体毛片基于压电原理工作：当施加机械应力时，它产生电荷；反之，当施加电场时，它发生机械变形。在振荡器电路中，毛片由交变电压激励，使其以精确的谐振频率振动，该频率由其物理尺寸、切割角度和材料特性决定。这种振动产生用于定时和频率控制的稳定电信号。

The quartz crystal blank operates on the piezoelectric principle: when mechanical stress is applied, it generates an electric charge, and conversely, when an electric field is applied, it undergoes mechanical deformation. In an oscillator circuit, the blank is excited by an alternating voltage, causing it to vibrate at its precise resonant frequency, which is determined by its physical dimensions, cut angle, and material properties. This vibration creates a stable electrical signal used for timing and frequency control.