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一、概述自从1921年CADY首先运用压电石英振子制成第一台石英晶振以来,它为稳频技术的发展揭开了新的一页。六十多年来石英晶振得到了广泛的应用,其频率稳定度已由初期的10~(-4)提高到10~(-11)或更高的水平,几乎是平均每十年提高一个量级。高稳晶振的工作频率已由100KHz、1MHz、2.5MHz、5MHz发展到10MHz和100MHz。晶振的发展有力地促进了通信、导航、计测等技术的发展。它可简化电路,提高设备的抗干扰能力和精确度,在保证高可靠和长寿命的工作等方面都已显示了特有
First, an overview Since 1921, CADY piezoelectric quartz oscillator first made since the first quartz crystal, it for the development of frequency stabilization technology has opened a new page. Quartz crystal has been widely used for more than sixty years. Its frequency stability has been increased from 10 ~ (-4) in the early stage to 10 ~ (-11) or higher, almost an average of every ten years level. High-frequency crystal oscillator frequency has been 100KHz, 1MHz, 2.5MHz, 5MHz to 10MHz and 100MHz. The development of the crystal oscillator effectively promoted the development of technologies such as communication, navigation and measurement. It can simplify the circuit, improve the anti-interference ability and accuracy of the equipment, have shown the unique in the work of ensuring high reliability and long life