環(huán)境噪聲測量儀的設(shè)計

電子信息工程論文編號:DZXX016  論文字數(shù):11082,頁數(shù):32

 目錄
摘要 I
ABSTRACT II
第1章 緒論 1
 1.1 研究背景 1
 1.1.1 城市噪聲污染現(xiàn)狀 1
 1.1.2 國內(nèi)外研究現(xiàn)狀 2
 1.2 課題的研究意義 2
 1.3 課題的研究內(nèi)容 4
第2章 噪聲測量原理 5
 2.1 概述 5
 2.2 聲電傳感器的工作原理 5
 2.3 聲壓級的測量機理 6
第3章 硬件電路的設(shè)計 7
 3.1 系統(tǒng)的總體設(shè)計 7
 3.2 單片機AT89S51 7
 3.3 放大電路的設(shè)計 10
 3.4 A/D轉(zhuǎn)換電路設(shè)計 11
 3.5 顯示電路設(shè)計 12
第4章 系統(tǒng)的軟件設(shè)計 14
 4.1 軟件總體設(shè)計思路 14
 4.2 編程語言介紹 14
 4.3 軟件設(shè)計流程圖 15
第5章 系統(tǒng)調(diào)試 16
 5.1 Protel 99 SE 簡介 16
 5.2 keil簡介 16
第6章 系統(tǒng)設(shè)計總結(jié) 18
 6.1 設(shè)計總結(jié) 18
 6.2 展望 18
致謝 19
參考文獻 20
附錄1 系統(tǒng)總體電路圖 21
附錄2 元器件清單 22
附錄3 實物圖 23
附錄4 源程序 24

摘要
 隨著全球城市化進程的加快，城市規(guī)模的急劇膨脹和城市建設(shè)的不斷發(fā)展，城市環(huán)境噪聲問題也日益突出，給人們的生產(chǎn)和生活帶來了日趨嚴重的影響。該問題已同水污染和大氣污染一樣逐步成為人們廣泛關(guān)注的熱點問題。雖然目前中國已制定了許多與環(huán)境噪聲污染治理相關(guān)的法律，為治理環(huán)境噪聲污染提供了法律依據(jù)，但由于市場上的噪聲測量儀普遍價格比較昂貴，致使生活在噪聲環(huán)境中的居民無法很好的維護自己的權(quán)益。
 本課題主要介紹了一種噪聲測量儀的設(shè)計，該設(shè)計包括聲音傳感器的聲電轉(zhuǎn)換以及ADC0809芯片的模數(shù)轉(zhuǎn)換，最后再使用單片機來處理并顯示噪聲測量數(shù)據(jù)。這是一種簡易的高性價比的噪聲測量儀，適合日常生活使用可更好的幫助人們提高生活質(zhì)量。
關(guān)鍵詞：噪聲,城市噪聲污染,聲級計

ABSTRACT
 With the acceleration of worldwide urbanization course, the rapid expansion of city scales and the continuous development of city construction, problems of urban environmental noise are becoming more and more serious. They have brought increasingly severe influence on people's working and living. And these problems have gradually become hot spots that arouse extensive attention like water pollution and air pollution. Although China has developed a number of laws relating to environmental noise control, which provide a legal basis for the management of environmental noise pollution, due to expensive market price of noise measuring instrument that the residents who living in the noisy environment can not be good to safeguard their interests.
 This issue introduced the following Content. First, how to use a sound sensor to change the sound signal into voltage signal and an ADC0809 Chip to Analog-to-digital conversion. Second, using the single-chip microcomputer to deal with and display the data. This is a simple and cheap noise measuring instrument which is suitable for daily life and can be better used to help people improve the quality of life.
Keywords: noise，urban environmental noise，sound level meter