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style="text-indent:25px">高精度角度編碼器可重復(fù)方向的精度：軸承的關(guān)鍵特性，許多應(yīng)用情況下，空載時(shí)的氣浮軸承的***方向精度優(yōu)于滾動(dòng)軸承的方向精度，這一點(diǎn)沒(méi)有疑問(wèn)。然而，對(duì)于許多應(yīng)用，軸承比較高可重復(fù)的方向精度比較為關(guān)鍵。在此方面，高精度角度編碼器的模塊是一個(gè)可用于原采用氣浮軸承轉(zhuǎn)動(dòng)軸的可行選擇，因?yàn)闈L動(dòng)軸承的可重復(fù)精度具有與氣浮軸承相當(dāng)?shù)姆较蚓龋〗嵌染幋a器生產(chǎn)企業(yè)。而且，小角度編碼器生產(chǎn)企業(yè)，小角度編碼器生產(chǎn)企業(yè)，滾動(dòng)軸承的剛性至少比同規(guī)格氣浮軸承的剛性高10倍。這就是說(shuō)更適合用于帶負(fù)載的轉(zhuǎn)動(dòng)軸。此外，滾動(dòng)軸承通常對(duì)沖擊載荷不敏感而且不需要提供壓縮空氣—因此工作更可靠和更易于使用。高精度角度編碼器安裝松動(dòng)造成停止和移動(dòng)中位置偏差量超差。小角度編碼器生產(chǎn)企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="小角度編碼器生產(chǎn)企業(yè),高精度角度編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637345854224179688/867726.png"></div><p style="text-indent:25px">高精度角度編碼器關(guān)鍵技術(shù)研究：參考國(guó)內(nèi)外文獻(xiàn)的基礎(chǔ)上，深入研究分析了莫爾條紋信號(hào)的形成機(jī)理、激光電信號(hào)特點(diǎn)以及電子學(xué)細(xì)分原理。提出了一種適用于金屬碼盤(pán)的單圈角度編碼方法，采用單圈循環(huán)格雷碼編碼方法，在一條碼道上均勻分布10個(gè)讀數(shù)頭實(shí)現(xiàn)0°～360°的全量程角度編碼，設(shè)計(jì)出碼盤(pán)和狹縫盤(pán)。提出了單圈循環(huán)格雷碼的粗碼校正方法，并編制了軟件校正程序，實(shí)現(xiàn)了精碼對(duì)粗碼的校正。采用Xilinx的spartan3為重要控制器件，設(shè)計(jì)了高速數(shù)據(jù)采集處理系統(tǒng)硬件、軟件，實(shí)現(xiàn)了信號(hào)采集與處理，研制了高精度角度編碼器樣機(jī)，并對(duì)樣機(jī)進(jìn)行了檢測(cè)實(shí)驗(yàn)。重慶絕對(duì)值角度編碼器高精度角度編碼器安裝松動(dòng)：這種故障會(huì)影響位置控制精度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="小角度編碼器生產(chǎn)企業(yè),高精度角度編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637345854242187500/976699.png"></div><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。</p><p style="text-indent:25px">高精度角度編碼器是通過(guò)把激光信號(hào)轉(zhuǎn)換成電信號(hào)輸出***位置信息的傳感器。相比增量式角度編碼器，它具有輸出數(shù)據(jù)只對(duì)應(yīng)一個(gè)位置、不需要***零位、斷電重啟之后也無(wú)需尋找零位、無(wú)累計(jì)誤差等優(yōu)點(diǎn)。高精度角度編碼器普遍的應(yīng)用在機(jī)器人、數(shù)控機(jī)床、雷達(dá)、經(jīng)緯儀等自動(dòng)化領(lǐng)域中，在jun事與航空航天等要求高精度、空間小、測(cè)量范圍超過(guò)2π相位角的時(shí)候，單圈高精度角度編碼器就不能滿足要求，需要多圈高精度角度編碼器代替。在分析了傳統(tǒng)的高精度角度編碼器的工作原理與組成的基礎(chǔ)上，采用了矩陣式編碼的碼盤(pán)，完成了16位高精度角度編碼器碼盤(pán)的制作，減小了高位數(shù)編碼器的體積。闡述了高精度碼盤(pán)尺寸與編碼器精度之間的約束關(guān)系。按照讀出方式高精度角度編碼器可以分為接觸式和非接觸式兩種接觸式采用電刷輸出。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="小角度編碼器生產(chǎn)企業(yè),高精度角度編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637345854348144531/121132.png"></div><p style="text-indent:25px">高精度角度編碼器的誤差檢測(cè)是編碼器制作過(guò)程中不可或缺的一個(gè)環(huán)節(jié).對(duì)于高精度光電編碼器，細(xì)分誤差是影響其準(zhǔn)確度的主要因素.現(xiàn)有的細(xì)分誤差檢測(cè)主要采用精密的小角度測(cè)量?jī)x，光學(xué)多面體等儀器，要求在嚴(yán)格的實(shí)驗(yàn)室條件下進(jìn)行，檢測(cè)方法費(fèi)時(shí)，費(fèi)力，易引入檢測(cè)誤差.對(duì)碼盤(pán)光柵節(jié)距較小，細(xì)分份數(shù)較高的高精度編碼器的細(xì)分誤差以及工作現(xiàn)場(chǎng)的動(dòng)態(tài)細(xì)分誤差的快速檢測(cè)，還沒(méi)有有效的檢測(cè)手段.本文主要研究的是高精度編碼器動(dòng)態(tài)細(xì)分誤差的測(cè)量方法.在參考國(guó)內(nèi)外大量文獻(xiàn)的基礎(chǔ)上，首先從莫爾條紋產(chǎn)生的原理出發(fā)，深入分析了高精度編碼器莫爾條紋光電信號(hào)的特點(diǎn)，影響莫爾條紋質(zhì)量的因素，莫爾條紋信號(hào)質(zhì)量對(duì)細(xì)分誤差的影響，研究了高精度編碼器細(xì)分誤差的計(jì)算方法.提出了利用傅立葉變換進(jìn)行高精度編碼器動(dòng)態(tài)細(xì)分誤差的計(jì)算方法.采用傅立葉分析算法對(duì)莫爾條紋信號(hào)進(jìn)行分析研究，計(jì)算信號(hào)波形參數(shù)，與標(biāo)準(zhǔn)信號(hào)進(jìn)行比對(duì)，求出動(dòng)態(tài)細(xì)分誤差.建立了莫爾條紋的時(shí)域信號(hào)向空域位置信號(hào)轉(zhuǎn)換的數(shù)學(xué)模型。高精度角度編碼器連接電纜故障：這種故障出現(xiàn)的幾率較高，維修中經(jīng)常遇到，應(yīng)是優(yōu)先考慮的因素。新疆21位高精度編碼器</p><p style="text-indent:25px">高精度角度編碼器單圈的只能反饋單圈也就是360°范圍內(nèi)的位置編碼。小角度編碼器生產(chǎn)企業(yè)</p><p style="text-indent:25px">為了減小高精度角度編碼器偏心誤差的影響，提高高精度角度編碼器角度測(cè)量的精度，對(duì)偏心誤差的修正方法進(jìn)行了研究.通過(guò)對(duì)國(guó)際大酒店編碼器測(cè)角原理和偏心誤差產(chǎn)生原因的分析，建立了偏心誤差模型.并根據(jù)偏心誤差模型的特點(diǎn)，對(duì)其進(jìn)行簡(jiǎn)化，得到易于數(shù)學(xué)計(jì)算的偏心誤差修正模型.以平行光管和23面棱體為基準(zhǔn)，得到存在偏心誤差的一組高精度角度編碼器測(cè)量數(shù)據(jù).使用線性比較小二乘參數(shù)選擇準(zhǔn)則，對(duì)偏心誤差修正模型中的參數(shù)進(jìn)行優(yōu)化計(jì)算，得到修正模型中的參數(shù)，完成對(duì)高精度角度編碼器誤差偏心的修正.通過(guò)誤差修正試驗(yàn)和精度驗(yàn)證試驗(yàn)，表明經(jīng)過(guò)偏心誤差修正，系統(tǒng)測(cè)量精度優(yōu)于±13″.修正方法達(dá)到了補(bǔ)償誤差的目的，提高了高精度角度編碼器的測(cè)量精度，滿足了高精度角度測(cè)量的要求小角度編碼器生產(chǎn)企業(yè)</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/3155125.html</p></div></div></div></div></div><div id="82ziu2r" class="page-right twoColRt"><div id="cry3egs" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="odaur3d" class="recomPic likePro"><a 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