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if (JS_ChkReg(keyWords, "^[中文\\w][中文\\w\\-\\+\\(\\)\\,，、]*$") == false) { if (keyWords == "") { alert("請輸入搜索關鍵詞！"); } else { alert("查找關鍵字只能是中文或者英文數字"); } $("#keyword").focus(); return false; } else { return true; } }); </script> <div class="publicWidth pageLocation"> <a href="/" class="title1">首頁</a> >><a href="/list/?167.html">NF社區</a> >><a href="/list/?262_1.html">行業快訊</a> </div> <div class="publicWidth articleDetails"> <h1 id="article-title"> 基于MODBUS的溫度控制器的研究 </h1> <div class="inforArticle"> <span class="author"> <strong>作者：</strong>?？滤? <strong>來源：</strong>網絡 <strong>發布：</strong> 2013-1-17 13:46:17 </span> <span class="fontsize">[<a href="javascript:articleSize('16','30')">大</a>] [<a href="javascript:articleSize('14','24')">中</a>] [<a href="javascript:articleSize('12','21')">小</a>]</span> </div> <div id="article" class="word"> <div align="left"><b>溫度</b>是工業對象中主要的被控參數之一。像冶金、機械、食品、化工各類工業中廣泛使用的各種加熱爐、熱處理爐、反應爐等<font face="Times New Roman">,</font><font face="宋體">對象溫度往往要求嚴格控制。溫度控制模塊的引入</font><font face="Times New Roman">,</font><font face="宋體">對提高控制精度意義重大</font><font face="Times New Roman">,</font><font face="宋體">并已經在諸多工業生產過程中得到了廣泛的應用。但是</font><font face="Times New Roman">,</font><font face="宋體">一般的</font><font face="Times New Roman">PID</font><font face="宋體">溫度控制器</font><font face="Times New Roman">,</font><font face="宋體">必須由工程人員根據經驗</font><font face="Times New Roman">,</font><font face="宋體">手動調節</font><font face="Times New Roman">PID</font><font face="宋體">參數</font><font face="Times New Roman">,</font><font face="宋體">電路精度也需要電位器調節</font><font face="Times New Roman">,</font><font face="宋體">給工程技術人員帶來了極大的麻煩</font><font face="Times New Roman">,</font><font face="宋體">這在某種程度上限定了溫度控制模塊的實際應用。針對這種情況同時考慮到中小型企業溫度控制的應用需求</font><font face="Times New Roman">,</font><font face="宋體">本文研究了具有</font><font face="Times New Roman">PID</font><font face="宋體">參數自整定功能的溫度控制模塊</font><font face="Times New Roman">,</font><font face="宋體">并進行了設計和開發。本文首先介紹了國內外溫度控制系統的發展概況、</font><font face="Times New Roman">PID</font><font face="宋體">控制器的發展情況以及</font><font face="Times New Roman">PID</font><font face="宋體">參數自整定的發展現狀</font><font face="Times New Roman">,</font><font face="宋體">隨后對硬件電路和軟件電路進行了設計</font><font face="Times New Roman">,</font><font face="宋體">最后對</font><font face="Times New Roman">PID</font><font face="宋體">自整定方法進行了系統的研究并通過實驗對</font><font face="Times New Roman">PID</font><font face="宋體">自整定精度及效果進行了驗證。</font></div><div align="left"><font face="宋體">本<b>溫度控制模塊</b>具有隔離的</font><font face="Times New Roman">RS485</font><font face="宋體">通訊接口</font><font face="Times New Roman">,</font><font face="宋體">通訊協議支持</font><font face="Times New Roman"><b>Modbus</b> RTU/ASCII,</font><font face="宋體">支持多種傳感器輸入</font><font face="Times New Roman">,</font><font face="宋體">有完善的保護功能以及引線電阻自動補償</font><font face="Times New Roman">,</font><font face="宋體">軟件校準零點和滿度</font><font face="Times New Roman">,</font><font face="宋體">數字校零技術克服系統的時漂和溫漂。無需電位器調節</font><font face="Times New Roman">,</font><font face="宋體">使模塊具有很好的可靠性、穩定性和通用性。采用加權最小二乘參數估計方法尋找連續非線性</font><font face="Times New Roman">A/D</font><font face="宋體">轉換電路的最佳參數。能夠實現</font><font face="Times New Roman">PID</font><font face="宋體">參數自整定功能</font><font face="Times New Roman">,</font><font face="宋體">并支持模糊控制。充分權衡產品的性價比</font><font face="Times New Roman">,</font><font face="宋體">為中小型企業溫度控制器的開發提供切實可行的解決方案。</font><br /></div><div align="left"> </div><br /><br /><font size="2"><font color="gray"> <img src="http://www.003lm.com/bbs/xwb/images/bgimg/icon_logo.png" border="0" alt="" style="max-width:400px" /> 該貼已經同步到 <a target="_blank">admin的微博</a></font></font><script src="/inc/AspCms_VisitsAdd.asp?id=1717"></script> </div> <div id="C_wechat_link" style="display: none;"></div> <iframe style="display: none;width:100%;border-width: 0;overflow: hidden;" id="iFrame" width="100%"></iframe> <script> function getUrl(URL) { let http = (window.location.protocol === 'http:' ? 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