数字频率计设计本科毕业设计.doc

  1. 1、本文档共31页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
PAGE III 数字频率计设计 学生:XXX 指导教师:XXX 内容摘要:在电子技术中,频率是最基本的参数之一,并且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。电子计数器测频有两种方式:一是直接测频法,即在一定闸门时间内测量被测信号的脉冲个数;二是间接测频法。如周期测频法。直接测频法适用于高频信号的频率测量,间接测频法适用于低频信号的频率测量。本文阐述了基于VHDL语言设计了一个简单的数字频率计的过程。 关键词:数字频率计 信号 周期 Figure frequency meter system Abstract: The frequency is one of the most basic parameters in electronic technology, and with many 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. Measuring frequency of means, including electronic counter measure frequency with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation, is an important means of frequency measurement. Electronic counter frequency measurement in two ways: first is the direct frequency measurement Law, or within a certain time gates of measured signal pulse number; second is indirect frequency measurement method. Such as cycle frequency measurement method. Direct frequency measurement Law is applicable to the high frequency signal frequency measurement, indirect frequency measurement Law is applicable to low-frequency signals in the frequency measurement. In this paper based on the VHDL language design of a simple digital frequency meter process. Keywords: Figure frequency meter Signal period . 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc385254035 前言 PAGEREF _Toc385254035 \h 1 HYPERLINK \l _Toc385254036 1 概论 PAGEREF _Toc385254036 \h 1 HYPERLINK \l _Toc385254037 1.1 设计概述 PAGEREF _Toc385254037 \h 1 HYPERLINK \l _Toc385254038 1.2 设计目的 PAGEREF _Toc385254038 \h 2 HYPERLINK \l _Toc385254039 1.3 设计内容 PAGEREF _Toc385254039 \h 2 HYPERLINK \l _Toc385254040 1.4 设计原理 PAGEREF _Toc385254040 \h 2 HYPERLINK \l _Toc385254041 1.5 设计功能 PAGEREF _Toc385254041 \h 3 HYPERLINK \l _Toc38525

您可能关注的文档

文档评论(0)

a13355589 + 关注
实名认证
内容提供者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档