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在电子技术中,频率是最基本的参数之一,又与许多电参量的测量方案、测量结果都有十分密切的关系,因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测...
在电子技术中,频率是最基本的参数之一,又与许多电参量的测量方案、测量结果都有十分密切的关系,因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速,以及便于实现测量过程自动化等优点,是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计,并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门,通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率,最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求,而且具有了单片机的稳定性和成熟性,且控制能力强,是一种低成本,高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct
- 2023-01-08 22:50:02下载
- 积分:1
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智能、遥控、LED数码日历钟,DS1302,AT89C2051,源程序。
智能、遥控、LED数码日历钟,DS1302,AT89C2051,源程序。-Intelligent, remote control, LED digital calendar clock, DS1302, AT89C2051, source.
- 2022-02-05 19:22:11下载
- 积分:1
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PIC16F76单片机汇编语言设计,预付费载波电能表源程序,带红外、485...
PIC16F76单片机汇编语言设计,预付费载波电能表源程序,带红外、485-PIC16F76 microcontroller assembly language design, pre-paid carrier meter source, with infrared, 485
- 2022-07-26 10:23:21下载
- 积分:1
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delete the file of the blanks
删除文件中的空格-delete the file of the blanks
- 2022-03-20 02:57:12下载
- 积分:1
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交通灯由黄光东写
traffic light written by Huynh Quang Tung
- 2022-06-27 14:03:11下载
- 积分:1
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Drop功能
-Win32 Assembly写的小程式,含source code.-QikPad Text Editor 具备Drag-Drop功能 --Win32 Assembly to write small programs, including source code.-QikPad Text Editor with Drag-Drop functionality
- 2022-05-06 08:27:48下载
- 积分:1
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Assembly language curriculum design, " text readers"
汇编语言课程设计《文本阅读器》-Assembly language curriculum design, " text readers"
- 2022-03-09 09:37:00下载
- 积分:1
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- 2022-02-14 05:30:25下载
- 积分:1
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用汇编语言实现的一个打字练习程序,程序一个..
利用汇编语言实现的一个打字练习程序,程序界面为典型的Dos窗口,当字符从窗口顶端掉下来后,如果按键与该字符相同,字符变为红色,在打字结束后,给出打字的统计结果,在打字过程中按ESC可退出程序-The use of assembly language to achieve a typing practice program, the program interface for the typical Dos window, when the characters fall from the top window, if the button with the same characters, the character turns red, in the typing after the end of typing results is given , in the typing process by pressing ESC to exit
- 2022-02-13 01:56:11下载
- 积分:1
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264 software source file ,made in C language
264 software source file ,made in C language
- 2023-08-25 10:55:04下载
- 积分:1