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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
- 2022-04-18 19:56:54下载
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three Invoicing use interface and connection pool is interviewing others works d...
三是使用接口和连接池访问他人作品的delphi语言
- 2023-05-13 01:40:03下载
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Device Class Definition for Human Interface Devices (HID)
Device Class Definition for Human Interface Devices (HID)
- 2022-03-23 19:23:02下载
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vc的一个例子哦 vc的一个例子哦
vc的一个例子哦 vc的一个例子哦-vc an example of an example of vc Oh Oh Oh, an example of vc
- 2023-05-22 13:50:03下载
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三层结构及组件技术实现员工数据管理系统.pdf
三层结构及组件技术实现员工数据管理系统.pdf-three-tier structure and components technology employee data management system. Pdf
- 2022-07-23 18:37:20下载
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键盘ledlcd的3个驱动程序,以WORD的格式打开,有设计思想,步骤,框图,为你学习带来方便...
键盘ledlcd的3个驱动程序,以WORD的格式打开,有设计思想,步骤,框图,为你学习带来方便-3 of ledlcd keyboard driver WORD format to open, have design ideas, steps, block diagram, in order to bring convenience to learn from you
- 2022-02-01 13:08:55下载
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Electronic design of the components required for the AD7810 Description
电子设计时所需的元器件AD7810的说明
-Electronic design of the components required for the AD7810 Description
- 2022-01-25 22:07:58下载
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performance management system design, the design JSP
成绩管理系统设计,用JSP设计的-performance management system design, the design JSP
- 2023-02-08 20:45:04下载
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非常详细的Wince BSP 开发入门资料, 对于有兴趣的人很有帮助!
非常详细的Wince BSP 开发入门资料, 对于有兴趣的人很有帮助!-Wince BSP developed a very detailed introductory information helpful for those who are interested!
- 2022-09-07 13:00:03下载
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介绍PID控制算法,并有详细的实例,包括系统设计方案和实现方法...
介绍PID控制算法,并有详细的实例,包括系统设计方案和实现方法-Introduction PID control algorithm, and detailed examples, including system design and implementation method
- 2023-05-19 01:25:03下载
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