§1.1石英晶体振荡器的重要应用在频率控制领域中,石英晶体振荡器起着举足轻重的作用。它广泛地应用于通信、计时、导航、雷达、卫星跟踪、宇宙通信等领域,在发射机、接收机、计算机、微处理机、各种数字电路及电子仪器中,石英晶体振荡器也是必不可少的部件。在无线电通信系统中,如果发射机或接收机的本振频率不稳定,就会降低无线信路的抗干扰能力,缩短通讯距离,减少给定 §1.1 quartz crystal oscillator important application In the field of frequency control, quartz crystal oscillator plays a decisive role. It is widely used in communications, timekeeping, navigation, radar, satellite tracking, space communications and other fields, in transmitters, receivers, computers, microprocessors, various digital circuits and electronic equipment, quartz crystal oscillator is also inevitable Few parts. In a radio communication system, if the local frequency of the transmitter or the receiver is unstable, the anti-interference ability of the wireless signal can be reduced, the communication distance can be shortened,