摘要
脉冲信号参数测量仪是一种常用的测量仪器,可以测量脉冲信号频率、占空比等参数,具有测量精度高、速度快、操作简便、数字显示等特点,广泛应用在电子技术相关的教学科研中。针对传统的脉冲信号参数测量仪价格昂贵、体积大等问题,采用低功耗的FPGA(现场可编程门阵列)芯片作为主控芯片,再由单片机控制显示被测脉冲信号的频率以及占空比,在测量频率范围和测量误差方面都很好地满足系统的设计要求。同时为了系统自校准和对外信号输出的需要,该测量仪还能产生1 MHz的标准矩形脉冲信号,具有一定的实用性。
Pulse signal parameter measuring instrument is a type of frequently used measuring instrument,which can measure the parameters such as frequency,duty cycle.And it is used widely in teaching and research related to electronic technology because its advantage of high precision,fast speed,simple operation and digital display.However,the traditional pulse signal parameter measuring instrument is expensive,bulky.So in this paper,the low power FPGA chip is used as the main control chip,and the frequency and duty cycle of the pulse signal are measured by the LCD.Moreover,the design requirements of the system are well met in the measurement frequency range and measurement errors.Meanwhile,for the need of system self-calibration and external signal output,the instrument can also produce 1 MHz standard rectangular pulse signal,which has a certain practicality.
作者
高英杰
陈婕
刘飞
叶全意
GAO Ying-jie;CHEN Jie;LIU Fei;YE Quan-yi(Jinling Institute of Technology,Nanjing 211169,China;Jinling Institute of Technology,Nanjing 211169,China)
出处
《金陵科技学院学报》
2018年第1期6-9,共4页
Journal of Jinling Institute of Technology
基金
国家自然科学基金资助项目(61701204)
江苏省博士后科研资助计划项目(1701073B)
江苏省高校自然科学研究面上项目(16KJB510010)
2017年省级大学生创新创业训练计划一般项目(201713573042Y)
江苏省现代教育技术研究课题(2017-R-55611)
金陵科技学院基金项目(jit-b-201511
jit-2016-jlxm-22
jit-fhxm-201606)
关键词
脉冲信号参数测量仪
频率
占空比
FPGA
单片机
pulse signal parameter measuring instrument
frequency
duty cycle
FPGA
single-chip
