把R、L、C轉換成頻率信號f,轉換的原理分別是rc振蕩電路和LC電容三點式振蕩電路。單片機計數得出被測頻率,由該頻率計算出各個參數值,數據處理后,送顯示。
上傳時間: 2016-03-04
上傳用戶:小眼睛LSL
通用報表打印類使用說明 主要功能: 1 – 自動分頁 2 – 自動劃出縱橫表格線 3 – 支持橫向 / 縱向打印 4 – 支持打印輸出或生成文本文件 使用方法: 1.Copy prt.h, prt.cpp --- > Project Path 2.Menu --- > Project --- > Add to project --- > files ( prt.h, prt.cpp ) 3.Menu --- > open --- > prt_demo.rc --- > Bitmap --- > IDB_PRT ( copy to current project ) 4.Menu --- > open --- > prt_demo.rc --- > Dialog --- > IDD_PRT ( copy to current project ) 5.Add: #include <prt.h> 6.Add member function : int GetRow(PRTROW *pRow) 7.Add code into OnPrt and GetRow
上傳時間: 2014-02-11
上傳用戶:dongqiangqiang
本程序是一個太陽能熱水器智能控制系統的程序。它以89C52單片機為核心,配合電阻型4檔水位傳感器、負溫度系數NTC熱敏電阻溫度傳感器、8255A擴展鍵盤和顯示器件、驅動電路(電磁閥、電加熱、報警)等外圍器件, 完成對太陽能熱水器容器內的水位、水溫測量、顯示;時間顯示;缺水時自動上水,水溢報警;手動上水、參數設置;定時水溫過低智能電加熱等功能。 其中本文第一章主要說明了太陽能熱水器智能控制系統的研究現狀和本課題的主要任務,第二章對系統的整體結構作了簡單介紹,第三章重點介紹了水位水溫測量電路,第四章介紹了時鐘電路,第五章介紹了顯示和鍵盤電路,第六章對其他電路作了介紹,第七章是對水位測量電路的硬件調試。 本系統對于水位傳感器、水溫傳感器的電阻數據的處理均采用獨特的rc充放電的方法。它與使用A/D轉換器相比,電路簡單、制造成本低。特別適用于對水位、水溫要求不精確的場合。 如需詳細硬件電路與說明文檔請與作者聯系!
上傳時間: 2016-03-24
上傳用戶:Divine
根據ZLG500A系列非接觸式IC卡模塊寫的讀寫程序,其實說白了就MF rc 500的讀寫程序的ZLG版本
上傳時間: 2013-12-08
上傳用戶:JIUSHICHEN
輸入脈沖序列,通過非線性系統生成序列波形。系統為rc級聯網絡
上傳時間: 2014-01-18
上傳用戶:zhengjian
This programme is to control DC motor in a certain speed using PWM. The target speed is "r", it is the speed in 1s. The sample rate is 0.1s, so the actual speed target is "rc"=r/10. The "r" and "rc" are integer, and the range of "r" is from 50 to 100. Keep rc=r/10!!! The array "speed1" and "speed2" are the control result, in 0.1s and 1s. The length of "speed1" is 2400, and "speed2" is 240. The "pw" and "nw" are the parameters of PWM. The test will last 4 min.
標簽: speed programme is control
上傳時間: 2014-11-22
上傳用戶:jyycc
這是msp430f449單片機系統時鐘源控制和選擇的控制方式源代碼,可以選擇片外高速晶振,片外標準時鐘晶振,片內rc振蕩器三個時鐘源
上傳時間: 2016-08-09
上傳用戶:lht618
es\Dice.ico This an icon file, which is used as the application s icon. This icon is included by the main resource file Dice.rc. res\Dice.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file.
標簽: icon This application included
上傳時間: 2013-12-23
上傳用戶:hwl453472107
此程序本人調試OK,適合初學液晶的人. 此附件包含C源程序、原理圖、液晶說明書和漢字取模軟件. 我調試過程中使用的STK500,所以只用按此原理圖連線即可,rc復位電路STK500上已有,就不用自己加了。
上傳時間: 2013-12-24
上傳用戶:comua
最受歡迎的Joomla社區用戶管理收費插件 - Commnity Builder 1.2 rc2。 Community Builder suite (CB) extends the Joomla! user management system. Key features: extra fields in profile, enhanced registration workflows, user lists, connection paths between users, admin defined tabs and user profiles, image upload, front-end workflow management, integration with other components, like PMS, Newsletter, Forum, Galleries. Release 1.1 is compatible with all Joomla! 1.0.x (including 1.0.15) and Mambo 4.5.2-4.6.4. New CB version 1.2 rc brings Joomla 1.5 native compatibility (and keeping Joomla 1.0.x and Mambo 4.5.2-4.6.4 native compatibility), multi-criteria user searches, full field controls of core fields, ajax email and username checkers, new lost username/password form and many more features and fixes. Please see announcement on our homepage.
標簽: Builder Joomla Community Commnity
上傳時間: 2016-10-20
上傳用戶:daoxiang126