標(biāo)題: 基于51單片機(jī)的LCR測量儀(含程序、電路) [打印本頁]
作者: L_uan    時間: 2019-8-9 10:50
標(biāo)題: 基于51單片機(jī)的LCR測量儀(含程序、電路)
本帖最后由 L_uan 于 2019-8-9 10:56 編輯

實(shí)際上總體電路原理圖并沒有那么清晰




第一章 系統(tǒng)設(shè)計 ··························································································3
1．1 設(shè)計要求 ························································································3
1． 1．1 設(shè)計任務(wù) ·············································································3
1． 1．2 技術(shù)要求 ·············································································3
1．2 方案比較 ························································································3
1．3 方案論證 ························································································4
1． 3．1 總體思路 ·············································································4
1． 3．2 設(shè)計方案 ·············································································4
第二章 主要電路設(shè)計與說明 ···········································································5
2．1 TS556 芯片簡介 ·················································································5
2． 1．1 芯片的頂視圖及各引腳的功能 ···················································5
2． 1．2 芯片的等效功能方框圖及工作原理 ·············································5
2．2 CD4066 芯片的簡介 ··········································································7
2．3 測 RX 的 RC 振蕩電路 ·········································································7
2． 3．1 用 556 時基電路構(gòu)成多諧振蕩器 ················································7
2． 3．2 測量電阻的電路模塊 ·······························································9
2．4 測 CX 的 RC 振蕩電路 ······································································10
2．5 測 LX 的電容三點(diǎn)式振蕩電路 ····························································· 11
第三章 軟件設(shè)計 ························································································ 11
第四章 系統(tǒng)測試 ························································································ 12
4．1 測試儀器 ······················································································12
4．2 指標(biāo)測試及誤差分析 ·······································································12
4． 2．1 電阻的測量 ········································································12
4． 2．2 電容的測量 ········································································13
4． 2．3 電感的測量 ········································································13
第五章 總結(jié) ······························································································ 13
參考文獻(xiàn) ··································································································· 13
附 錄 ········································································································ 14
附錄 1 元器件清單 ······················································································14
附錄 2 程序清單 ·························································································15
附錄 3 總體電路圖 ······················································································17
附錄 4 印制板圖 ·························································································18
附錄 5 系統(tǒng)使用說明 ···················································································19


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基于51單片機(jī)的LCR測量儀(含程序、電路).pdf

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作者: vvv64    時間: 2019-9-9 08:30
講的很清楚，圖上標(biāo)記的不嚴(yán)謹(jǐn)，556標(biāo)成555了
作者: miqi0708    時間: 2020-8-14 14:17
講的很清楚
作者: lksbbs    時間: 2024-1-26 14:41
我看了，沒搞明白，明明用了單片機(jī)，不可以直接用單片機(jī)輸出脈沖么，還用555來產(chǎn)生脈沖。。。555的受限于電容的精度。直接用高精度的晶振不好？



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