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>指紋識別系統</a> </h2> </div> </li> </ul> <div id="roaqk2qzt" class="dgysj0"> <ul class="ultm"><li id="roaqk2qzt" class="li02">供應商機</li><li id="roaqk2qzt" class="li03">當前位置：<a href="/">首頁(yè)</a> -> <a href="/shop/supply/">供應商機</a></li> </ul> <ul class="contentX filter"> <div id="roaqk2qzt" class="imageBox"> <div id="roaqk2qzt" class="li08"> <a href="/home.aspx" id="oProductLink" name="oProductLink" target="_blank" title="塔吊黑匣子_塔吊黑匣子的制造工藝"> <video id="video" src="http://v.b2b168.com/2020/09/12/19/202009121905442582274.mp4" controls="controls" style="width: 100%; height: 100%;"></video><img alt="塔吊黑匣子_塔吊黑匣子的制造工藝" id="oProduct" name="oProduct" style="FILTER: revealTrans(duration=2,transition=20);display:none" src="http://l.b2b168.com/2022/08/19/21/20220819210714193074.jpg" onerror="NoImg(this)" border="0" /></a> </div> <ul class="imgTab"> <li id="roaqk2qzt" class="on"><video src="http://v.b2b168.com/2020/09/12/19/202009121905442582274.mp4"></video><span id="roaqk2qzt" class="videoIcon"></span></li> <li ><img src="http://l.b2b168.com/2022/08/19/21/20220819210714193074.jpg"/></li> </ul> </div> <div id="roaqk2qzt" class="xxcs"> <h1 title="塔吊黑匣子_塔吊黑匣子的制造工藝">塔吊黑匣子_塔吊黑匣子的制造工藝</h1> <div id="roaqk2qzt" class="time"><span>更新時(shí)間：2025-06-07 瀏覽數：353</span><br /> 所屬行業(yè)：<a target="_blank">工程機械</a> <a target="_blank">工程起重機械</a> <a target="_blank">施工升降機</a> </div> <div id="roaqk2qzt" class="cans"> 發(fā)貨地址：上海市嘉定區嘉定鎮街道 <br /> 產(chǎn)品數量：0.00個(gè)<br /> <span id="roaqk2qzt" class=""> 價(jià)格：<i>面議</i></span><br /> </div> <div id="roaqk2qzt" class="ljzx"><a href="/message.aspx" target="_self" rel="nofollow">在線(xiàn)留言</a></div> </div> <div id="roaqk2qzt" class="li11 oSupDesc"> <div id="roaqk2qzt" class="shuxing2020"> <span id="roaqk2qzt" class="ssx01">配件適用對象</span><span id="roaqk2qzt" class="ssx02">塔吊</span> <span id="roaqk2qzt" class="ssx01">產(chǎn)品別名</span><span id="roaqk2qzt" class="ssx02">升降機安全管理系統</span> <span id="roaqk2qzt" class="ssx01">可售賣(mài)地</span><span id="roaqk2qzt" class="ssx02">全國</span> <span id="roaqk2qzt" class="ssx01">用途</span><span id="roaqk2qzt" class="ssx02">實(shí)時(shí)遠程監控升降機高度、速度，降低作業(yè)風(fēng)險</span> <span id="roaqk2qzt" class="ssx01">銷(xiāo)售方式</span><span id="roaqk2qzt" class="ssx02">自產(chǎn)自銷(xiāo)</span> <span id="roaqk2qzt" class="ssx01">價(jià)格</span><span id="roaqk2qzt" class="ssx02">面議</span> <span id="roaqk2qzt" class="ssx01">顯示顏色</span><span id="roaqk2qzt" class="ssx02">多彩，全彩</span> <span id="roaqk2qzt" class="ssx01">貨源類(lèi)別</span><span id="roaqk2qzt" class="ssx02">現貨</span> </div> <p>塔吊黑匣子_塔吊黑匣子的制造工藝</p><p></p><p style="box-sizing:border-box">絕對值多圈編碼器在塔吊黑匣子上的應用，真正意義的安全性絕對值真多圈編碼器。絕對值多圈編碼器，都是內部由高精密機械齒輪帶動(dòng)的全行程真多圈絕對值編碼器（機械鐘表齒輪式），這種編碼器技術(shù)是真正意義上的唯一“絕對值”。其內部為非接觸式絕對值數字編碼測量原理，無(wú)需計數、無(wú)需電池、無(wú)需靠停電記憶，所有位置絕對唯一，不怕干擾不怕停電，不僅僅可以在360度內測量，還可以依賴(lài)內部的鐘表式齒輪在多圈的角度絕對值測量，是真正意義的“安全性”角度傳感器。</p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box">絕對值多圈編碼器的特性描述，測量圈數及每圈分辨率分為2種，一種測量4096圈，每圈4096分辨率；另一種測量 ** 圈，總測量分辨率為14位16384。信號輸出是一種為RS485數字信號+4—20mA雙備份信號輸出（安全冗余），另一種為RS485數字信號或者4—20mA（或1—5V）信號（選一）。工作環(huán)境等級，標準工業(yè)等級（歐標），溫度-25度——80度，防護等級為外殼IP67，另外或輕載型經(jīng)濟級。</p><p style="box-sizing:border-box">編碼器的信號引線(xiàn)及可靠性無(wú)論是選用RS485信號還是4—20mA信號，編碼器的信號引線(xiàn)都是2根。編碼器的信號引線(xiàn)的可靠性因素，并行信號接線(xiàn)多，電纜長(cháng)，電纜成本接頭成本上去了，而且塔吊工作環(huán)境振動(dòng)、水汽等，線(xiàn)頭太多也帶來(lái)了接頭可靠性不穩定的問(wèn)題。另外，并行信號芯線(xiàn)多，大多不會(huì )做TVS防浪涌保護，對于雨天潮濕、雷擊等很容易損壞。RS485信號只用2根信號線(xiàn)，信號接頭的不可靠概率大大下降，一般RS485口都有TVS浪涌保護。</p><p style="box-sizing:border-box">另外，有些并行10位編碼器沒(méi)有用格雷碼，而是用了BCD碼或純二進(jìn)制碼（BIN碼），這種編碼不如格雷碼，會(huì )產(chǎn)生跳碼，國外真正的編碼器廠(chǎng)家從不生產(chǎn)這種并行編碼的，這種跳碼概率帶來(lái)的是黑匣子不穩定性，有時(shí)在使用中因跳碼而誤動(dòng)作。RS485信號為數字式通訊信號，抗干擾可靠性高?；剞D精度，全行程真多圈絕對值編碼器有分辨率12位甚至14位的，回轉精度高。</p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box">其中，防護等級是指外殼的防塵防水，編碼器的防護等級是塔吊黑匣子必須考慮的重要因素，塔吊在于露天工作，即使是編碼器外部有盒子，但是對于日夜溫差產(chǎn)生的水汽，編碼器外殼必須是無(wú)螺絲全密封的，不然水汽容易浸入影響編碼器光學(xué)系統，編碼器不穩定甚至報廢（就好比戴眼鏡怕水汽一樣）。所以防護等級外殼要達到IP65以上，從外觀(guān)上看，就是外殼無(wú)螺絲金屬全密封。</p><img src="https://l.b2b168.com/2022/08/19/21/202208192107158923634.jpg" alt=""><p></p><br /><a href="http://wap.fsyongcheng168.com.cn/">http://wap.fsyongcheng168.com.cn</a> </div> </ul> </div> </div> </div> <div class="roaqk2qzt" id="bottom"> <div id="roaqk2qzt" class="foot"> <ul class="nvft"> </ul> <ul class="btnImg"> <li><p id="mousShopsId"></p><strong class="st">手機商鋪</strong></li> <script type="text/javascript"> new QRCode("mousShopsId", { width: 100, height: 100 }).makeCode(window.location.host.indexOf(".b2b168.")>-1?window.location.origin+"/m/":window.location.origin.replace("www.","m.")); </script> </ul> <ul class="bottom"> 地點(diǎn)：上海市嘉定區嘉定鎮街道上海市嘉定區匯源路288號1棟4 樓 <br> 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