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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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led 的矩阵
LED矩阵代码
- 2022-01-31 16:43:54下载
- 积分:1
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电动车从起跑线出发(车体不得超过起跑线),沿引导线到达B点。在“直道区”铺设的白纸下沿引导线埋有1~3块宽度为15cm、长度不等的薄铁片。电动车检测到薄铁片时需...
电动车从起跑线出发(车体不得超过起跑线),沿引导线到达B点。在“直道区”铺设的白纸下沿引导线埋有1~3块宽度为15cm、长度不等的薄铁片。电动车检测到薄铁片时需立即发出声光指示信息,并实时存储、显示在“直道区”检测到的薄铁片数目。
(2)电动车到达B点以后进入“弯道区”,沿圆弧引导线到达C点(也可脱离圆弧引导线到达C点)。-Electric cars starting from the starting line (the body must not exceed the starting line), along the guide wire to reach point B. In the
- 2022-09-07 11:55:03下载
- 积分:1
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汇编程序调试软件,较好的编译程序调试软件…
汇编程序调试软件,较好的汇编程序调试软件,是你编程的好帮手-Assembler debugging software, a better compilation of program debugging software, you are programming a good helper
- 2022-03-17 19:39:47下载
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calculator
科学计算器,使用汇编语言编写的科学计算器(Scientific calculator, using the scientific calculator written in assembly language)
- 2020-07-01 12:40:02下载
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C8051F350采样滤波汇编程序,请大家参考指教,应该有所帮助,这个片子最竟很热,啊...
C8051F350采样滤波汇编程序,请大家参考指教,应该有所帮助,这个片子最竟很热,啊-C8051F350 sampling filter assembler, please refer to U.S. advice, should be helpful, this film has the most hot, ah
- 2022-03-23 10:26:42下载
- 积分:1
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OMAP3530的文档和设计指南,ARM内核,TI的扩展。
Omap3530 documentation and design guide, ARM core, TI extensions.
- 2022-08-08 13:26:19下载
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门禁中韦根信号发送,汇编语言编写,51单片机可用.
门禁中韦根信号发送,汇编语言编写,51单片机可用.-Wiegand Access Control in the signal sent, written in assembly language, 51 microcontroller is available.
- 2022-07-24 14:50:50下载
- 积分:1
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基于892051红外遥控电子密码锁,接收部分程序
基于892051红外遥控电子密码锁,接收部分程序-892,051 based on the infrared remote control of electronic locks, receive some of the procedures
- 2022-06-12 21:12:30下载
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shockwave
经过激波,气体的压强、密度、温度都会突然升高,流速则突然下降(After the shock, the gas pressure, density, temperature will rise suddenly, a sudden drop in flow velocity)
- 2013-10-12 10:16:41下载
- 积分:1