| 基于SPG8650B的数字频率计的设计 |
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| 引用本文： | 周锦荣,唐浩.基于SPG8650B的数字频率计的设计[J].漳州师院学报,2011(3):30-32. |
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| 作者姓名： | 周锦荣 唐浩 |
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| 作者单位： | 漳州师范学院物理与电子信息工程系,福建漳州363000 |
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| 基金项目： | 福建省自然科学基金计划资助项目（2008J0036）; 漳州师范学院科学研究资助项目（SK09009） |
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| 摘 要： | 介绍一种基于标准脉冲信号发生电路的数字频率计的设计方法.该数字频率计主要由SPG8650B构成的时基电路、74LS221构成的逻辑控制电路及MM74C925所构成的计数锁存和译码电路组成.通过实验教学中的实际应用检测,在频率0-9999KHz范围内,测试性能稳定,精度较高,具有一定的实用性.
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| 关 键 词： | 数字频率计 SPG8650B 直接测频法 |
Design of Digital Cymometer based on SPG8650B |
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| LIN A-shan,ZHOU Jin-rong,TANG Hao.Design of Digital Cymometer based on SPG8650B[J].Journal of ZhangZhou Teachers College(Philosophy & Social Sciences),2011(3):30-32. |
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| Authors: | LIN A-shan ZHOU Jin-rong TANG Hao |
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| Institution: | (Departmemt of physics and Electronic Information,Zhangzhou Normal University,Zhangzhou,Fujian,363000) |
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| Abstract: | The methods are introduced to design a digital frequency meter based on the standard pulse signal circuit.The digital frequency meter composed mainly of SPG8650B time base circuitry,74LS221 form of logic control circuit and MM74C925 posed count latch and decoding circuit.Experimental Teaching through the practical application of detection,in the frequency range 0-9999KHz,test performance is stable and accurate,has a certain practicality. |
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| Keywords: | the digital cymometer SPG8650B direct frequency measurement |
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