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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇拉伸膜相位差測量儀性價比高,相位差測量儀</p><p><span>***更新：</span>2020-12-27 13:04:46</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3c7cwyn" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州千宇光學(xué)科技有限公司</a></p><p><span>聯(lián)系人：</span>密先生</p><p><span>郵箱: </span>cimi@oec-tech.com</p><p><span>電話: </span>18662198664</p><p><span>傳真: </span>0512_69388290</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0512-69388290</p><p><span>地址: </span>蘇州工業(yè)園區(qū)東旺路8號7B-302室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="gvhegxo" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="c3m83cz" class="box"><p><p style="text-indent:25px">偏光片關(guān)鍵層-PVA PVA膜 (PolyvinylAlcohol)全稱聚乙烯醇薄膜，其組分主要是碳?xì)溲醯容p原子，因此具有高透光和高延展性等特點(diǎn)。PVA分子本來是任意角度無規(guī)則性分布的，PET相位差測試儀，在一定溫度和濕度條件下，江蘇拉伸膜相位差測量儀性價比高，受力拉伸后就逐漸偏轉(zhuǎn)于作用力方向，趨向于成直線狀分布。拉伸后的PVA分子沿拉伸方向直線排列，拉伸膜相位差測試儀，吸附在PVA層上的染料分子也跟隨著有方向性的偏轉(zhuǎn)，形成或染料分子的長鏈，江蘇拉伸膜相位差測量儀性價比高。因?yàn)榈怆x子(或染料分子)有很好的起偏性，它可以吸收平行于其排列方向的偏振光，金華相位差測試儀，江蘇拉伸膜相位差測量儀性價比高，只讓垂直方向的偏振光通過，利用這樣的原理就可制造偏光膜。測量重復(fù)性精度業(yè)內(nèi)** 高。江蘇拉伸膜相位差測量儀性價比高</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇拉伸膜相位差測量儀性價比高,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282372529297/3872049.png"></div><p> 相位差測量儀主要是由鎖相環(huán)產(chǎn)生360倍頻基準(zhǔn)信號和移相網(wǎng)絡(luò)的基準(zhǔn)信號與待測信號進(jìn)行異或后的信號作為顯示器的閘門電路和控制信號。頻率測量模塊主要是用計(jì)數(shù)法測量頻率的，它是有某個已知 </p> <p> 標(biāo)準(zhǔn)時間間隔Ts內(nèi)，測出被測信號重復(fù)出現(xiàn)的次數(shù)N，然后計(jì)算出頻率f=N/Ts.顯示電路模塊主要是由計(jì)數(shù)器、鎖存器、譯碼器和數(shù)碼管組成。 </p> <p> 相位差測試儀是工業(yè)領(lǐng)域中是經(jīng)常用到的一般測量工具，比如在電力系統(tǒng)中電網(wǎng)并網(wǎng)合閘時，需要兩電網(wǎng)的電信號相同,這就需要精確的測量兩工頻信號之間的相位差。江蘇拉伸膜相位差測量儀性價比高軸角度精度精度業(yè)內(nèi)** 高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇拉伸膜相位差測量儀性價比高,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282455625000/5909694.png"></div><p style="text-indent:25px">能提供固定或可變相移量的無耗二端口網(wǎng)絡(luò)稱為固定或可變移相器。數(shù)字處理技術(shù)的發(fā)展日新月異，隨著集成電路技術(shù)和軟件技術(shù)的不斷發(fā)展和解決復(fù)雜問題能力的不斷提高，DSP技術(shù)的出現(xiàn)使得測量儀器集成度高，穩(wěn)定性好，測量速度快，精度高，操作簡捷，功能也越來越強(qiáng)大。目前，國內(nèi)相位計(jì)生產(chǎn)廠家或研究單位明顯存在著技術(shù)老化問題，其采用的器件、方法和技術(shù)與技術(shù)先進(jìn)國家有較大的差距。而**近發(fā)展的先進(jìn)的計(jì)算機(jī)技術(shù)、電子技術(shù)等卻由于技術(shù)、資金、管理等方面的原因未能應(yīng)用于相位測量技術(shù)，因此國內(nèi)相位測量的水平有著相當(dāng)大的差距。同時，隨著**和科教等領(lǐng)域的發(fā)展，迫切需要高精度高性能的相位測量系統(tǒng)，而且在一些特殊工程領(lǐng)域，還需要測量儀器具備其它特殊功能。由此可見，為縮小這些差距，對高精度相位測量算法的研究和相位測量系統(tǒng)的設(shè)計(jì)刻不容緩。推薦產(chǎn)品本文給大家介紹一套較完整的數(shù)字高精度相位計(jì)，提高相位及頻率參數(shù)的測量精度，并擴(kuò)展測相系統(tǒng)功能，該設(shè)備具有操作簡便、使用方便、安全，由于采用電流耦合、高阻輸入方式對軌道電路相位差、相鄰區(qū)段極**叉進(jìn)行檢查，解決了相鄰區(qū)段有車占用時極**叉無法檢查的問題。</p><p style="text-indent:25px">PET相位差測量儀-蘇州千宇光學(xué)科技有限公司(在線咨詢)-金華相位差測試儀由蘇州千宇光學(xué)科技有限公司提供。蘇州千宇光學(xué)科技有限公司是一家從事“彎折機(jī),相位差測試儀等”的公司。自成立以來，我們堅(jiān)持以“誠信為本，穩(wěn)健經(jīng)營”的方針，勇于參與市場的良性競爭，使我們品牌擁有良好口碑。我們堅(jiān)持“服務(wù)為先，用戶至上”的原則，使芯艾藍(lán)光電在工業(yè)制品中贏得了眾的客戶的信任，樹立了良好的企業(yè)形象。特別說明：本信息的圖片和資料*供參考，歡迎聯(lián)系我們索取準(zhǔn)確的資料，謝謝！相位差測試儀：RETS-100相位差測試儀。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇拉伸膜相位差測量儀性價比高,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281612314453/3724707.png"></div><p style="text-indent:25px">相位檢測儀器工作原理數(shù)字相位計(jì)一般采用相位-電壓轉(zhuǎn)換法的相位差數(shù)字化測量方法.它測量的是同頻信號的相位差，相位差為φ的兩個同頻信號U1(t)和 U2(t)分別經(jīng)過各自的衰減電路被衰減成為振幅在0.6V到2.0V的基準(zhǔn)電壓，然后送至相應(yīng)的整形電路整形為方波，此時對稱調(diào)整電路會對這兩個信號進(jìn)行對稱調(diào)整，使得測量結(jié)果更準(zhǔn)確，這樣就得到了兩個同頻方波信號，再經(jīng)過鑒相脈沖電路得到一個隨相位差變化而變化的脈沖信號 △t.相位差的數(shù)字化是采用填充計(jì)數(shù)法實(shí)現(xiàn)的，即用周期為τ的脈沖分別對△t和T進(jìn)行計(jì)數(shù)，則相位差:φ=△tTX360° =n1 Tn2τ X360° =n1n2X360°式子中T為兩個被測信號的周期，n1為△t時間內(nèi)所填充的脈沖個數(shù), n2為T時間內(nèi)所填充的脈沖個數(shù)。由于不同的信號電壓大小不同，所以他們需要進(jìn)入不同的衰減電路,才能保證整個電路的安全和測量的準(zhǔn)確性,這就需要一個精確的自動換程電路.而后續(xù)的信號處理需要--個幅值穩(wěn)定在-一個范圍內(nèi)的基準(zhǔn)信號，這就需要通過衰減器來實(shí)現(xiàn).測量重復(fù)性：0.02° （精度業(yè)內(nèi)比較高）。江蘇相位差測量儀批發(fā)</p><p style="text-indent:25px">對應(yīng)樣品尺寸：可定制。江蘇拉伸膜相位差測量儀性價比高</p><p style="text-indent:25px">性能可靠：對正弦/三角/梯形波/方波的相位差進(jìn)行精密測量；高度集成，精度高；參數(shù)指標(biāo)：輸入信號波形正弦/三角/梯形波/方波輸入阻抗1MΩ相位范圍0°to360°or±180°頻率范圍10Hz～99Hz幅度范圍～250V分六個量程，自動選擇量程測量精度相位測量精度±1°（典型值正弦波：10Hz-99Hz）相位分辨率°相位重復(fù)性±°或更好頻率測量精度±頻率分辨率幅度精度±幅度分辨率1mV、、環(huán)境特性工作溫度0℃～＋50℃相對濕度≤90%（40℃）存儲溫度-30℃～＋70℃供電電源交流220V±10%，50Hz±5%，功率小于75W機(jī)箱尺寸3U，19″標(biāo)準(zhǔn)機(jī)箱（上機(jī)架）482mm（寬）x370（深）x150mm（高）測相位差原理分析一般測量相位差有如下兩種方法：方法1：:將兩路同頻不同相的方波信號異或后得到的脈沖寬度t與方波信號的周期T的比值（占空比），即對應(yīng)為兩信號的相位差，如下所示：?異或測量相位差的原理方法2：通過捕獲處理后的兩通道的方波，就可計(jì)算出相位。江蘇拉伸膜相位差測量儀性價比高</p><p style="text-indent:25px">蘇州千宇光學(xué)科技有限公司位于蘇州工業(yè)園區(qū)東旺路8號7B-302室，交通便利，環(huán)境優(yōu)美，是一家其他型企業(yè)。千宇光學(xué)科技是一家有限責(zé)任公司企業(yè)，一直“以人為本，服務(wù)于社會”的經(jīng)營理念;“誠守信譽(yù)，持續(xù)發(fā)展”的質(zhì)量方針。公司業(yè)務(wù)涵蓋高低溫光電綜合系統(tǒng)，彎折機(jī)，相位差測試儀，軸角度測試儀，價格合理，品質(zhì)有保證，深受廣大客戶的歡迎。千宇光學(xué)科技將以真誠的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2587665.html</p></div></div></div></div></div><div id="rlsury2" class="page-right twoColRt"><div id="dmjqs2n" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7rvhofh" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="kumovwt" class="recomPic 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