數(shù)字交流毫伏表的設(shè)計_畢業(yè)設(shè)計論文(已修改)
2025-09-06 13:46 本頁面
【正文】 畢業(yè)設(shè)計（論文）中文摘要 隨著電子技術(shù)的不斷發(fā)展，電子儀器的發(fā)展也是令人矚目的?？偟膩碚f，電子儀器有兩個方向的發(fā)展趨勢：一是向多功能、多參數(shù)、高精度、高速度方面發(fā)展，另一個是向?qū)嵱没?、小型化、?shù)字化、廉價的通用或單一用途方面發(fā)展。對于數(shù)字式電壓表來說，一方面趨向于合并于數(shù)字式萬用表中，另一方面趨向于使用方便、小型廉價的單一用途電壓表。本次的畢業(yè)設(shè)計課題為數(shù)字交流毫伏表，其顯著特點是測量范圍寬，可以實現(xiàn)量程自動轉(zhuǎn)換，操作簡單，使用方便。該電壓表還具有在— 定的測量范圍內(nèi)將量程自動選擇在最佳位置的功能，從而可 以快速、方便、準(zhǔn)確地測量電壓， 在設(shè)計中我采用了模塊化的設(shè)計方法，先將整機分為不同的功能模塊，再設(shè)計實現(xiàn)局部功能的單元電路。這樣各單元電路的功能明確，之間的界限清楚，便于調(diào)試。本文對 輸入通道的設(shè)計、反相放大器的設(shè)計、 AC／ DC 轉(zhuǎn)換部分的設(shè)計、量程自動轉(zhuǎn)換電路的設(shè)計作了詳細(xì)的介紹。 關(guān)鍵 詞 ： 數(shù)字交流毫伏表 測量 轉(zhuǎn)換 2 畢業(yè)設(shè)計（論文）外文摘要 Title: Digital Ac mV the design table The design of digital AC mV meter Abstract: With the continued development of electronic technologies, the development of electronic equipment is also impressive. Overall, there are two directions of the development of electronic equipment trends: First, the multipurpose, multiparameter, highprecision, highspeed development and the other to practical technology, miniaturization, digital, single use cheap generic or development. For digital voltage table, on the other hand tend to be bined in a digital micrometer, on the other hand tend to be userfriendly, small inexpensive singleuse voltage table. This graduation project topic for a digital exchange micrometer, its remarkable characteristic is surveys the scope widely, may realize the measuring range automatic switching, the operation is simple, easy to operate. This voltmeter also has in the survey scope which decides the measuring range automatic selection in the best position function, thus may fast, be convenient, accurately survey the voltage, I has used the modular design method in the design, first putting in order machine will divide into the different function module, the reengineering realization partial function unit electric circuit. Like this various units electric circuit function is clear about, the between boundary is clear, is advantageous for the debugging. This article to input the channel the design, the inverting amplifier design, AC/DC transforms the partial designs, the measuring range automatic switching electric circuit design has 3 made the detailed introduction. Keywords : Digital exchange micrometer measurement conversion 4 目 錄 1． 引言 6 2. 設(shè)計工具的 簡介 7 主要設(shè)計工具的介紹 7 PROTEL99 簡介 7 繪制 PCB 時的注意事項 7 3. 工作原理 9 一般數(shù)字電壓表的基本工作原理 9 本設(shè)計數(shù)字電壓表的工作原理
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