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class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="yrneqrq" class="clearfix searchWrap"><div id="b3kqrxy" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="tlcokqg" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁(yè)</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a 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src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283297490234/9619687.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7ihykr2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283297490234/9619687.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8npvmio" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>江蘇相位差測(cè)量?jī)x銷售公司,相位差測(cè)量?jī)x</p><p><span>***更新：</span>2020-11-13 14:11:31</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="eci7w33" 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(hào)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="obxofgg" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="zctk8e7" class="box"><p><p style="text-indent:25px">相位檢測(cè)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(cè)量方法.它測(cè)量的是同頻信號(hào)的相位差，相位差為φ的兩個(gè)同頻信號(hào)U1(t)和 U2(t)分別經(jīng)過(guò)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，江蘇相位差測(cè)量?jī)x銷售公司，江蘇相位差測(cè)量?jī)x銷售公司，此時(shí)對(duì)稱調(diào)整電路會(huì)對(duì)這兩個(gè)信號(hào)進(jìn)行對(duì)稱調(diào)整，使得測(cè)量結(jié)果更準(zhǔn)確，這樣就得到了兩個(gè)同頻方波信號(hào)，江蘇相位差測(cè)量?jī)x銷售公司，再經(jīng)過(guò)鑒相脈沖電路得到一個(gè)隨相位差變化而變化的脈沖信號(hào) △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(duì)△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(gè)被測(cè)信號(hào)的周期，n1為△t時(shí)間內(nèi)所填充的脈沖個(gè)數(shù), n2為T時(shí) 間內(nèi)所填充的脈沖個(gè)數(shù)。由于不同的信號(hào)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(gè)電路的安全和測(cè)量的準(zhǔn)確性,這就需要一個(gè)精確的自動(dòng)換程電路.而后續(xù)的信號(hào)處理需要--個(gè)幅值穩(wěn)定在-一個(gè)范圍內(nèi)的基準(zhǔn)信號(hào)，這就需要通過(guò)衰減器來(lái)實(shí)現(xiàn).測(cè)量重復(fù)性：0.02° （精度業(yè)內(nèi)比較高）。江蘇相位差測(cè)量?jī)x銷售公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇相位差測(cè)量?jī)x銷售公司,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283297490234/9619687.png"></div><p style="text-indent:25px">相位差測(cè)量兩個(gè)正弦電量可以是電壓和電流，或者一個(gè)是電壓，一個(gè)是電流等，對(duì)應(yīng)點(diǎn)通常是從負(fù)到正的過(guò)零點(diǎn)，相當(dāng)于正弦電函數(shù)的初始相位角。相位差的單位是度或弧度，正負(fù)號(hào)表示超前或滯后關(guān)系。一種由于被測(cè)相位差正弦電量的頻率范圍很寬，所以通常根據(jù)頻率選擇測(cè)量方法和儀器。常用的方法有直接法和間接法。一種直接法：用指針式相位計(jì)、數(shù)字相位計(jì)等**儀器或用負(fù)示波器測(cè)量相位差。當(dāng)使用陰極示波器時(shí)，將兩個(gè)相同頻率的正弦電壓信號(hào)分別加到示波器的X軸和Y軸上。然后兩個(gè)正弦電壓之間的相位差為∮=電弧正弦（B/α）。江蘇相位差測(cè)量?jī)x銷售公司配置表: PLM-100系列- -套工業(yè)電腦及軟件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇相位差測(cè)量?jī)x銷售公司,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282805332031/666775.png"></div><p style="text-indent:25px">兩個(gè)頻率相同的溝通電相位的差叫做相位差，或者叫做相差。這兩個(gè)頻率相同的溝通電，可所以兩個(gè)溝通電流，可所以兩個(gè)溝通電壓，可. 所以兩個(gè)溝通電動(dòng)勢(shì)，也可所以這三種量中的任何兩個(gè)。兩個(gè)同頻率正弦量的相位差就等于初相之差。是一個(gè)不隨時(shí)刻改變的常數(shù)。也可所以一個(gè)元件_上的電流與電壓的相位改變。兩正弦電量可以同為電壓、電流，或一為電壓、-為電流等。對(duì)應(yīng)點(diǎn)常取正弦電量由負(fù)到正的過(guò)零點(diǎn)，相當(dāng)于正弦電量函數(shù)的初相角。相. 位差的單位是度或弧度，正、負(fù)號(hào)表示搶先或滯后聯(lián)系。待測(cè)相位差的正弦電量的頻率規(guī)模很廣，因此選用的丈量辦法和儀器一般隨頻率的高低來(lái)挑選。常用的辦法是直接法和間接法。</p><p style="text-indent:25px">間接法通常采用三電壓表法。一般要求兩電壓信號(hào)有一公共點(diǎn)（設(shè)為a點(diǎn)），當(dāng)分別測(cè)出兩信號(hào)電壓Uab、Uca，以及兩電壓的差值Ubc后，可畫出電壓三角形。按余弦定理，兩信號(hào)電壓間的相位差當(dāng)∮很小時(shí)，可將Uab或Uca中較大的一個(gè)信號(hào)電壓分壓，使分壓后兩信號(hào)的數(shù)值相等。間接法通常采用三電壓表法。一般要求兩電壓信號(hào)有一公共點(diǎn)（設(shè)為a點(diǎn)），當(dāng)分別測(cè)出兩信號(hào)電壓Uab、Uca，以及兩電壓的差值Ubc后，可畫出電壓三角形。按余弦定理，兩信號(hào)電壓間的相位差當(dāng)∮很小時(shí)，可將Uab或Uca中較大的一個(gè)信號(hào)電壓分壓，使分壓后兩信號(hào)的數(shù)值相等。偏光片吸收軸角度、偏振片偏振方向。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇相位差測(cè)量?jī)x銷售公司,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283662138672/3154010.png"></div><p style="text-indent:25px">相位常應(yīng)用在科學(xué)領(lǐng)域，如數(shù)學(xué)、物理學(xué)等。例如：在函數(shù)y=Acos(ωx+φ)中，ωx+φ稱為相位。在astrolog32中點(diǎn)擊ALTIFT+A可以顯示相位設(shè)定菜單。在交流電中，相位是反映交流電任何時(shí)刻的狀態(tài)的物理量。交流電的大小和方向是隨時(shí)間變化的。比如正弦交流電流，它的公式是i=Isin2πft。i是交流電流的瞬時(shí)值，I是交流電流的比較大值，f是交流電的頻率，t是時(shí)間。隨著時(shí)間的推移，交流電流可以從零變到比較大值，從** 大值變到零，又從零變到負(fù)的** 大值，從負(fù)的比較大值變到零。在三角函數(shù)中2πft相當(dāng)于弧度，它反映了交流電任何時(shí)刻所處的狀態(tài)，是在增大還是在減小，是正的還是負(fù)的等等。因此把2πft叫做相位，或者叫做相。相位差測(cè)試儀：拉伸膜相位差測(cè)試儀。江蘇相位差測(cè)量?jī)x銷售公司</p><p style="text-indent:25px">偏光片吸收軸角度、偏振片偏振方向、波片快軸方向。江蘇相位差測(cè)量?jī)x銷售公司</p><p> 相位差測(cè)試儀測(cè)試小科普： </p> <p> 1.Q：軸角度是吸收軸角度嗎？ </p> <p> A：否。①吸收軸角度，是指透過(guò)光線在某一方向呈現(xiàn)吸收狀態(tài)（透光率比較低），此光軸跟基準(zhǔn)邊的夾角。通常同偏光軸（透過(guò)軸）垂直相交。 ②軸角度定義適用于雙折射樣品（產(chǎn)生相位差的樣品），在國(guó)際上普遍定義為慢軸與基準(zhǔn)邊的夾角。 </p> <p> 2. Q：配向角（取向角）是指軸角嗎？ </p> <p> A：否。配向角是軸角在垂直方向的投影。當(dāng)水平放置樣品時(shí)，配向角=軸角。當(dāng)樣品傾斜時(shí)，配向角會(huì)隨著樣品的翻轉(zhuǎn)而變化，所以在測(cè)量配向角時(shí)候，需要知道樣品與水平面的夾角。江蘇相位差測(cè)量?jī)x銷售公司</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1975336.html</p></div></div></div></div></div><div id="leahyz8" class="page-right twoColRt"><div id="8fwieqw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3fwn28s" 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="py3zzg7" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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