什么是石英晶体？
石英晶体基于人造石英晶体,用作振荡器电路的电子元件,产生具有规定频率的电振荡.其工作原理基于已安装的压电和石英晶体与电极接触的机电谐振原理.由于石英的压电特性,它在交变电压的影响下执行精确定义的振荡（共振）.
在电气上,石英的行为类似于具有高Q值的振荡电路,因此在许多应用中通过适当的电路充当时钟发生器.

石英晶体需要什么？
石英晶体用于需要非常精确和恒定频率的电路中,例如大多数发射器、时钟、微控制器、手机、计算机以及频率计数器和数字信号发生器.

石英晶体本身仅决定频率.由于石英晶体本身既不是振荡器也不是时钟发生器,因此必须在适当的电路中运行,以表示晶体稳定的振荡器电路（晶体振荡器）.

What are Quartz Crystals?

Quartz crystals are based on man-made quartz crystals that are used as electronic components in oscillator circuits to produce electrical oscillations with a defined frequency. Its working principle is based on the electromechanical resonance principle of the installed piezoelectric and quartz crystals in contact with the electrodes. Due to the piezoelectric properties of quartz, it performs precisely defined oscillations (resonances) under the influence of alternating voltages.
Electrically, quartz behaves like an oscillating circuit with a high Q value and therefore acts as a clock generator with appropriate circuitry in many applications.

What do you need for quartz crystals?
Quartz crystals are used in circuits that require very precise and constant frequency, such as most transmitters, clocks, microcontrollers, cell phones, computers, and frequency counters and digital signal generators.
The quartz crystal itself only determines the frequency. Since a quartz crystal is neither an oscillator nor a clock generator per se, it must be operated in an appropriate circuit to represent a crystal-stabilized oscillator circuit (crystal oscillator).