| 一种基于FPGA用游标法实现的时间间隔测定器 |
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| 作者姓名： | 刘莉 李署坚 邵定蓉 |
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| 作者单位： | 北京航空航天大学电子工程系 北京100083
(刘莉，李署坚)，北京航空航天大学电子工程系 北京100083(邵定蓉) |
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| 摘 要： | 文中介绍时间间隔的测量原理和游标法的测时原理,针对一种基于FPGA的高精度测时系统,描述其硬件实现。该系统利用粗测与细测相结合来测量两个脉冲信号之间的时间间隔,其测时分辨率可达到1ns。系统具有精度高、功耗小及实现简便等优点。
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| 关 键 词： | 游标法 时间间隔测定器 计数器 |
Time Interval Measuring Instrument Based on FPGA with Vernier Method |
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| Authors: | Liu Li Li Shujian Shao Dingrong |
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| Institution: | Liu Li Li Shujian Shao Dingrong |
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| Abstract: | This paper describes the principle of time interval measuring and vernier time-measuring, introduces a high precision timing system based on FPGA, and illuminates the system hardware structure in detail. By the combination of rough measure and precise measure, this system can acquire the time interval between two pulse signals, and its resolution power is 1 ns.The system has the following merits: high precision, low power consumption and simple realization. |
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| Keywords: | Subject terms Vernier method Time interval measuring instruments Rough measure Precise measure Counter |
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