【正文】 ..........................................................................................10 方案比較 .......................................................................................11 方案選擇 .....................................................................................12 第三章 單元電路設(shè)計 .......................................................................13 電源電路 .......................................................................................13 氣 敏探測電路 ..............................................................................13 電子開關(guān)電路 ..............................................................................14 報警電路 .......................................................................................15 開放式空氣負離子發(fā)生器 .........................................................16 單元模塊的聯(lián)接 ..........................................................................17 第四章 系統(tǒng)的調(diào)試 ...........................................................................18 電源電路的調(diào)試 .........................................................................19 氣敏探測電路的調(diào)試 .................................................................19 電子開關(guān)電路的調(diào)試 .................................................................19 中州大學(xué)課 程設(shè)計 3 3 報警電路的調(diào)試 .........................................................................20 開放式空氣負離子發(fā)生器 的調(diào)試 ............................................20 煤氣泄漏報警電路的整體調(diào)試 ................................................20 第五章 系統(tǒng)的功能及參數(shù) ..............................................................21 系統(tǒng)的功能 .................................................................................21 系統(tǒng)的參數(shù) .................................................................................22 第六章 軟件介紹 ...............................................................................22 第七章 致謝 ........................................................................................24 參考文獻 ..............................................................................................25 9 附錄 煤氣泄漏報警電路 設(shè)計電路圖 ..........................................26 中州大學(xué)課 程設(shè)計 4 4 家庭煤氣泄漏報警器設(shè)計 內(nèi)容摘要 近年來，全國燃氣行業(yè)發(fā)展迅猛，液化氣、天然氣、煤制氣等城市燃氣 作為清潔能源已在工商業(yè)和城鎮(zhèn)居民用戶中得到廣泛應(yīng)用，特別是隨著 “ 西氣東輸 ”工程的快速進展，燃氣行業(yè)發(fā)展?jié)摿薮?。城市燃氣的普及與應(yīng)用無疑對改善城市的環(huán)境質(zhì)量和提高居民的生活質(zhì)量發(fā)揮了巨大的作用。為了使燃氣更好地造福于民，造福于社會，減少并杜絕各種因燃氣泄漏而 引發(fā)的爆炸及火災(zāi)事故，各燃氣使用單位及居民用戶選擇一種適合的煤氣報警器實為必要之舉。本次設(shè)計中應(yīng)用了多種數(shù)字電路 ,如電源電路、氣 敏探測電路 、 電子開關(guān)電路 、 報警電路 等。 關(guān)鍵詞：報警電路 氣敏探測 中州大學(xué)課 程設(shè)計 5 5 1Abstract In recent years, rapid development of the national gas industry, liquefied petroleum gas, natural gas, coal gas and other city gas as a clean energy has been in the business and urban residential customers has been widely used, especially with the west to East Gas Transmission project of the rapid progress, development of gas industry has great potential. Popularization and application of city gas will no doubt improve the city 39。s insecurity and instability. In order to better benefit of gas to the people, the benefit of society, to reduce and eradicate due to gas leak caused the explosion and fire accidents, the use of the gas unit and residential customers to choose a suitable gas alarm is indeed a necessity. The course design is the subject of a gas leak alarm circuit, a gas leak alarm circuit which is used when