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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
- 2022-03-22 04:26:27下载
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独立键盘的原理和设计和方法,里面附有C的源代码
独立键盘的原理和设计和方法,里面附有C的源代码-Independent keyboard theory and design and methodology, which with C source code
- 2022-12-11 02:05:03下载
- 积分:1
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主要介绍了热电偶冷端补偿器LT1025应用,哈哈…
主要介绍热电偶冷端补偿器LT1025的应用,具有很强的使用价值-Main Introduction Thermocouple Cold Junction Compensator LT1025 applications, has a strong value
- 2022-02-01 07:04:08下载
- 积分:1
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InP_InGaAsPIN红外探测器增透膜的研究
InP_InGaAsPIN红外探测器增透膜的研究-Infrared detector InP_InGaAsPIN antireflection coatings research
- 2022-05-31 05:16:55下载
- 积分:1
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Philips LPC21x series ARM processor design documents multiple applications
飞利浦公司LPC21x系列ARM处理器的多个应用设计文档-Philips LPC21x series ARM processor design documents multiple applications
- 2022-02-03 22:11:21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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各种存储器的测试方法,共5篇文章,中文来自期刊网,英文来自IEEE,均是付费下载的...
各种存储器的测试方法,共5篇文章,中文来自期刊网,英文来自IEEE,均是付费下载的-A variety of memory tests, a total of five articles from the Journal Network in Chinese and English from the IEEE, are paid to download
- 2022-01-31 16:30:41下载
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哈希表的实现问题描述设计到系统的地址…
问题描述
设计散列表实现通讯录查找系统,使得平均查找长度不超过2,完成相应的建表和查表程序。
-Hash table implementation to describe the design problem to find the system address book, bringing the average search length of no more than 2 to complete the construction of the corresponding table and look-up table procedures.
- 2022-09-10 09:35:03下载
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DB4730_Libra_wince Ingenic
DB4730_Libra_wince Ingenic-DB4730_Libra_wince Ingenic
- 2022-03-13 00:39:34下载
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打印机蓝牙通信接口技术研究
打印机蓝牙通信接口技术研究-Printer Bluetooth communication interface technology research
- 2022-04-06 14:37:26下载
- 积分:1