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id="mqx7dkm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">桁萱自動(dòng)化科技（上海）有限公司</a></p><p><span>聯(lián)系人：</span>儲(chǔ)焰青</p><p><span>郵箱: </span>272205845@qq.com</p><p><span>電話(huà): </span>18017028721</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.sh-hengxuan.com</p><p><span>手機(jī): </span>021-57658113</p><p><span>地址: </span>嘉好路1333號(hào)501</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="hlikwiz" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8gspwyk" class="box"><p><p style="text-indent:25px">高精度角度編碼器的防護(hù)等級(jí)其實(shí)是分兩部分的，轉(zhuǎn)軸部分與外殼電氣部分，有些編碼器廠家會(huì)分別注明轉(zhuǎn)軸部分的防護(hù)等級(jí)與電氣部分的防護(hù)等級(jí)。轉(zhuǎn)軸由于是旋轉(zhuǎn)的，防水較難做，如*依賴(lài)于密封精密滾珠軸承，要達(dá)到完全的防水是不現(xiàn)實(shí)的，一般工業(yè)級(jí)的在IP64以上，如果要達(dá)到IP66以上，就需要有特殊工藝，有些通過(guò)雙軸承內(nèi)部的結(jié)構(gòu)，有些通過(guò)增加橡皮擋碗來(lái)提高防護(hù)等級(jí)，但在編碼器低速時(shí)好辦，北京高清編碼器報(bào)價(jià)，在較高速時(shí)就困難了，大部分在IP66以上的軸都轉(zhuǎn)起來(lái)很重的；而外殼電氣部分必然是IP65以上。反應(yīng)在防護(hù)等級(jí)上的機(jī)械設(shè)計(jì)，往往是轉(zhuǎn)軸是雙軸承結(jié)構(gòu)，而外殼的封裝往往不依賴(lài)于外徑上的螺絲固定，而是一次擠壓+O型密封圈的密封封裝。這種情況下，在編碼器的外殼外徑上是看不到三個(gè)螺絲固定的，如有三個(gè)螺絲固定，由于螺絲的頂入，而很可能造成外圓輕微變形而輕微破壞圓度，北京高清編碼器報(bào)價(jià)，那樣，密封性能就很難有保證了，另外，這些螺絲也會(huì)因振動(dòng)與熱脹冷縮而松動(dòng)，影響防護(hù)等級(jí)，北京高清編碼器報(bào)價(jià)。這類(lèi)編碼器，在其標(biāo)注的防護(hù)等級(jí)也許也很高，但那是廠家出廠的理想的實(shí)驗(yàn)室狀態(tài)，在工程項(xiàng)目的使用中，還是較難有保證的。高精度角度編碼器多圈的則可以記錄有限多圈的位置編碼。北京高清編碼器報(bào)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京高清編碼器報(bào)價(jià),高精度角度編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637345854331464844/9761982.png"></div><p style="text-indent:25px">高精度角度編碼器感應(yīng)同步器測(cè)角法是種電磁感應(yīng)位置檢測(cè)元件，它是美國(guó)根據(jù)美國(guó)空軍提出的要求而發(fā)明的，根據(jù)正弦、余弦兩繞組的電壓和相位進(jìn)行比較，利用電磁感應(yīng)將位移量轉(zhuǎn)化成電信號(hào)，并以數(shù)字脈沖形式輸出基準(zhǔn)量。由于感應(yīng)同步器在工作時(shí)可以多個(gè)節(jié)距同時(shí)起作用，具有“平均效應(yīng)”，因而具有較高的分度準(zhǔn)確度。無(wú)論是機(jī)械式還是電磁式測(cè)角法，它們的主要缺點(diǎn)大多為手工測(cè)量，不容易實(shí)現(xiàn)自動(dòng)化，而且測(cè)量精度也受到機(jī)械加工精度的限制。1角秒光電編碼器生產(chǎn)商家高精度角度編碼器的增量測(cè)量法的圓光柵由周期性柵狀線(xiàn)條組成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京高清編碼器報(bào)價(jià),高精度角度編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637345854348144531/121132.png"></div><p style="text-indent:25px">有沒(méi)有意識(shí)到目前所介紹的高精度角度編碼器應(yīng)用全部都跟電有關(guān)？進(jìn)行旋轉(zhuǎn)或水平運(yùn)動(dòng)，除了用電作為動(dòng)力源的電機(jī)驅(qū)動(dòng)之外，用油壓、氣壓作為驅(qū)動(dòng)方式也是有的。但是這些油壓和氣壓裝置，基本上沒(méi)有使用高精度角度編碼器。為什么呢？首先，電機(jī)的話(huà)通過(guò)電源開(kāi)關(guān)的控制，可以馬上開(kāi)啟或停止運(yùn)動(dòng)。通過(guò)控制電機(jī)電壓和頻率，可以輕易改變轉(zhuǎn)數(shù)。因?yàn)檫@些動(dòng)作都有著高應(yīng)答，通過(guò)高精度角度編碼器可以對(duì)電機(jī)進(jìn)行高精度且迅速的控制。用油壓作為動(dòng)力源的話(huà)，油壓上升是需要時(shí)間的（例如螺旋槳），也就無(wú)法像電機(jī)那樣用高精度角度編碼器進(jìn)行控制。</p><p style="text-indent:25px">精度誤差在高階的計(jì)算中，也是按級(jí)數(shù)增加的，當(dāng)精度誤差與采樣分辨率的比例達(dá)到一定時(shí)，在高價(jià)的計(jì)算中就急劇上升，如再加上控制的機(jī)械響應(yīng)誤差的增加，其反應(yīng)的就是變化加速度計(jì)算的對(duì)應(yīng)電機(jī)電流的控制誤差－－電流控制紊亂，無(wú)功熱耗，電機(jī)發(fā)燙，電梯的加速度不平穩(wěn)了。電梯乘客人的感覺(jué)就是人的中耳平衡系統(tǒng)對(duì)加速度的敏感性，當(dāng)加速度不平穩(wěn)時(shí)，人就會(huì)產(chǎn)生暈眩。實(shí)際上此時(shí)的伺服“動(dòng)態(tài)特性”已經(jīng)是不平穩(wěn)的抖動(dòng)狀態(tài)了。由此，高精度高精度角度編碼器對(duì)于速度環(huán)，尤其是高階的動(dòng)態(tài)特性，實(shí)際上比分辨率更加的重要，分辨率可以不斷的細(xì)分上去，而“精度”是無(wú)法通過(guò)細(xì)分提高，甚至細(xì)分會(huì)帶來(lái)更大的噪音誤差。高精度角度編碼器的格式有多少種呢？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京高清編碼器報(bào)價(jià),高精度角度編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637345854425634766/2680183.png"></div><p style="text-indent:25px">基于誤差擬合的高精度角度編碼器的誤差修正方法和系統(tǒng)，所述方法通過(guò)對(duì)高精度角度編碼器進(jìn)行在圓周內(nèi)的誤差檢測(cè)，并根據(jù)所采集到誤差采樣點(diǎn)的數(shù)據(jù)，對(duì)高精度角度編碼器的長(zhǎng)周期誤差進(jìn)行擬合，得到誤差擬合函數(shù)f(x)=Asin(xη);而后將f(x)離散化并計(jì)算誤差修正數(shù)據(jù)，以及根據(jù)誤差修正數(shù)據(jù)對(duì)高精度角度編碼器輸出的原始角度數(shù)據(jù)進(jìn)行修正.本發(fā)明的誤差修正方法具有實(shí)施簡(jiǎn)單，修正精度高，易于產(chǎn)品批量生產(chǎn)等優(yōu)點(diǎn)，對(duì)提高高精度角度編碼器產(chǎn)品精度具有重要的實(shí)際意義.高精度角度編碼器連接的上位系統(tǒng)因產(chǎn)品更換、固件更新等原因記憶丟失。北京高清編碼器報(bào)價(jià)</p><p style="text-indent:25px">高精度角度編碼器如果負(fù)載運(yùn)動(dòng)范圍超過(guò)一圈，那么就需要在每次斷電后再次上電時(shí)進(jìn)行回零操作。北京高清編碼器報(bào)價(jià)</p><p style="text-indent:25px">由于機(jī)械安裝等原因造成的脈沖丟失的問(wèn)題：高精度角度編碼器信號(hào)跌落的頻率與電機(jī)轉(zhuǎn)速實(shí)際值存在一定對(duì)應(yīng)關(guān)系，一般說(shuō)明高精度角度編碼器在某些位置上的光柵信號(hào)出現(xiàn)問(wèn)題。造成這樣的問(wèn)題的主要原因在于高精度角度編碼器安裝過(guò)程中出現(xiàn)敲擊，沖撞等機(jī)械損傷，從而影響高精度角度編碼器的光電系統(tǒng)引起相關(guān)問(wèn)題。解決問(wèn)題：由于硬件的損傷，只能進(jìn)行更換。由于電磁干擾造成的高精度角度編碼器信號(hào)不穩(wěn)定的問(wèn)題：高精度角度編碼器的時(shí)鐘信號(hào)在變頻器使能的情況下出現(xiàn)了“毛刺”：干擾源：變頻器；耦合路徑：交變強(qiáng)電場(chǎng)耦合至高精度角度編碼器信號(hào)回路；受擾體：高精度角度編碼器信號(hào)。問(wèn)題的解決：一方面處理信號(hào)電纜的屏蔽層可靠接地的情況；另一方面通過(guò)與干擾源（變頻器及動(dòng)力）進(jìn)行空間的隔離處理。北京高清編碼器報(bào)價(jià)</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2879895.html</p></div></div></div></div></div><div id="zobs3xj" class="page-right twoColRt"><div id="3wypwdu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lfhjv8v" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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