| 数字集成芯片构成的频率计数器设计 |
| |
| 引用本文： | 王月爱.数字集成芯片构成的频率计数器设计[J].现代电子技术,2011,34(12):173-175. |
| |
| 作者姓名： | 王月爱 |
| |
| 作者单位： | 陕西国防工业职业技术学院,陕西西安,710300 |
| |
| 摘 要： | 频率计数器是一种用数字显示的频率测量仪表,它不仅可以测量正弦信号、三角波信号、方波信号和尖脉冲信号的频率,而且还能对其他多种非电量信号的频率进行测量。系统采用555定时器组成的多谐振荡器作为时基产生电路,产生频率为1 kHz的控制信号,而被测信号经过一个放大整形电路,将其变化成满足系统要求的计数脉冲信号,然后用频率计数器测量单位时间内变化次数,即被测信号的频率。
|
| 关 键 词： | 频率测量 555定时器 LED显示 频率计数器 |
Design on Frequency Counter Constructed by Digital Integrated Chip |
| |
| WANG Yue-ai.Design on Frequency Counter Constructed by Digital Integrated Chip[J].Modern Electronic Technique,2011,34(12):173-175. |
| |
| Authors: | WANG Yue-ai |
| |
| Affiliation: | WANG Yue-ai(Shaanxi Institute of Technology,Xi'an 710300,China) |
| |
| Abstract: | Frequency counter is a kind of digital display frequency measurement instrument,it can not only measure sine signal,triangle wave signal,square-wave signal and pointy pulse signal frequency,but also measure the frequency of other many non-electric quantity signal.This system used 555 timer to compose many harmonic oscillator as time base produce circuit,produced 1kHz frequency for the control signal,but through a magnifying plastic circuit,the tested signal was changed into count pulse signal which could me... |
| |
| Keywords: | frequency measurement 555 timer LED monitor frequency counter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
