一种高精度、大量程时间间隔计数器的设计

Design of A Time Interval Counter with High Precision and Large Range

时间间隔测量方法有多种,如计数法、游标法、模拟内插法、延迟线内插法、时间电压变换法等。通过对这几种测量方法的分析比较,提出了一种大量程、高精度的时间间隔测量方法,并从实现原理和设计方法进行了阐述。该方法已成功应用于GPS铷钟中,对于同类时间间隔计数器设计具有借鉴意义。

There are many methods about time interval measurement such as count method,vernier method,analog inter-plug,delay line inter-plug and time-to-voltage method.After having analyzed and compared these methods,It provided a new method with high precision and large range,and showed the principle and technique of the design.The method had successfully applied to GPS rubidium clock,and it will provide a good reference scheme for other designs.