Recent discussions surrounding the security of time service centers have brought a critical technology into focus: frequency and timing technology. At the Frequency and Time Benchmark Laboratory in Xi'an, every tick of "Beijing Time" is vital to the operation of critical infrastructure sectors ...
A 石英晶体谐振器 是一种利用石英晶体的压电效应实现频率稳定的电子元件。石英的化学成分为SiO2,属于六方晶系氧化物矿物,主要包括低温石英(α石英)和高温石英(β石英)。这种晶体在受到压力或热量时会产生压电效应,这是其作为谐振器的基本物理特性。 在实际制造中,石英晶体谐振器的基本结构是:将石英晶体按特定的方位...