江蘇薄膜相位差測(cè)量儀蘇州千宇光學(xué)科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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"><meta name="keywords" content="江蘇薄膜相位差測(cè)量儀,相位差測(cè)量儀"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282372529297/3872049.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jiumy38" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282372529297/3872049.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="utlsuls" 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>江蘇薄膜相位差測(cè)量儀,相位差測(cè)量儀</p><p><span>***更新：</span>2020-12-02 05:04:30</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="veqsz8s" 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="x7q9q4r" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rbifbnz" class="box"><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，江蘇薄膜相位差測(cè)量儀、Uca，以及兩電壓的差值Ubc后，可畫出電壓三角形。按余弦定理，江蘇薄膜相位差測(cè)量儀，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，江蘇薄膜相位差測(cè)量儀，使分壓后兩信號(hào)的數(shù)值相等。軸角度精度：±0.05°（精度業(yè)內(nèi)比較高）。江蘇薄膜相位差測(cè)量儀</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇薄膜相位差測(cè)量儀,相位差測(cè)量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282372529297/3872049.png"></div><p style="text-indent:25px">相位的概念? 相位(phase)是對(duì)于一個(gè)波，特定的時(shí)刻在它循環(huán)中的位置：一種它是否在波峰、波谷或它們之間的某點(diǎn)的標(biāo)度。相位描述信號(hào)波形變化的度量，通常以度?（角度）作為單位，也稱作相角。?當(dāng)信號(hào)波形以周期的方式變化，波形循環(huán)一周即為360°?。? 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ALT+SHIFT+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。江蘇薄膜相位差測(cè)量儀相位差測(cè)亮范圍: 0-20000nm 相位差重復(fù)性精度: 3σ≤ 0.1 nm。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇薄膜相位差測(cè)量儀,相位差測(cè)量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283752412109/9298150.png"></div><p> 相位差測(cè)量是兩同周期正弦電量對(duì)應(yīng)點(diǎn)間角度差值的測(cè)量。 </p> <p> 此兩正弦電量可以同為電壓、電流，或一為電壓、一為電流等。對(duì)應(yīng)點(diǎn)常取正弦電量由負(fù)到正的過零點(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**或滯后關(guān)系。 </p> <p> 待測(cè)相位差的正弦電量的頻率范圍很廣，因此采用的測(cè)量方法和儀器一般隨頻率的高低來選擇。 </p> <p> 常用的方法： </p> <p> 直接法使用**的儀表如指針式相位表、數(shù)字相位表，或采用陰級(jí)示波器來測(cè)量相位差。采用陰極示波器時(shí)，將兩同頻正弦電壓信號(hào)分別加到示波器的X、Y軸，得到如圖1所示的橢圓圖形，則兩正弦電壓之間的相位差∮=arc sin(b/α)。這一方法不能判斷兩信號(hào)哪一個(gè)**或滯后，并且在∮值接近零時(shí)，橢圓也退化接近成為一條直線，即b值很小，所以∮值很難測(cè)準(zhǔn) </p> <p> 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。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p><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。高精度軸角度相位差測(cè)量儀相位差(0 20000nm)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇薄膜相位差測(cè)量儀,相位差測(cè)量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281612314453/3724707.png"></div><p style="text-indent:25px">相位測(cè)量技能是電子技能中進(jìn)行信息檢測(cè)的重要方法,在現(xiàn)代科學(xué)技能中占有無關(guān)宏旨的效果和地位。相位差測(cè)試儀是工業(yè)領(lǐng)域中是常常用到的一般測(cè)量東西，比如在電力體系中電網(wǎng)并網(wǎng)合閘時(shí),需求兩電網(wǎng)的電信號(hào)相同，這就需求精確的測(cè)量兩工頻信號(hào)之間的相位差。更有測(cè)量兩列同頻信號(hào)的相位差在研討網(wǎng)絡(luò)、體系的頻率特性中具有重要意義。相位測(cè)量的方法許多，典型的傳統(tǒng)方法是經(jīng)過顯示器觀測(cè)，這種方法過錯(cuò)較大，讀數(shù)不方便。為此，我們規(guī)劃了一種數(shù)字相位差測(cè)量儀，實(shí)現(xiàn)了兩列信號(hào)相位差的主動(dòng)測(cè)量及數(shù)顯。相位差測(cè)試儀應(yīng)用于電力線路、變電所的相位校驗(yàn)和相序校驗(yàn)，具有核相、測(cè)相序、驗(yàn)電等功用。具有很強(qiáng)的抗干擾性，習(xí)氣各種電磁場(chǎng)干擾場(chǎng)合。被測(cè)高電壓相位信號(hào)由采集器取出，經(jīng)過處理后直接發(fā)射出去。由接納器接納并進(jìn)行相位比較，對(duì)核相后的效果定性。相位差測(cè)試儀：離型膜相位差測(cè)試儀。江蘇KOBRA相位差測(cè)量儀廠家直銷</p><p style="text-indent:25px">選配測(cè)試功能：1.相位差延遲量、橢偏率、配向角 2.色度、多波段測(cè)試(380nm~780nm）、偏光度。江蘇薄膜相位差測(cè)量儀</p><p style="text-indent:25px">相位差測(cè)試儀應(yīng)用于電力線路、變電所的相位校驗(yàn)和相序校驗(yàn)，具有核相、測(cè)相序、驗(yàn)電等功能。具備很強(qiáng)的抗干擾性,適應(yīng)各種電磁場(chǎng)干擾場(chǎng)合。被測(cè)高電壓相位信號(hào)由采集器取出，經(jīng)過處理后直接發(fā)射出去。由接收器接收并進(jìn)行相位比較,對(duì)核相后的結(jié)果定性。因本產(chǎn)品是無線傳輸，真正達(dá)到安全可靠、快速準(zhǔn)確，適應(yīng)各種核相場(chǎng)合。兩個(gè)頻率相同的交流電相位的差叫做相位差，或者叫做相差。這兩個(gè)頻率相同的交流電，可以是兩個(gè)交流電流，可以是兩個(gè)交流電壓,可以是兩個(gè)交流電動(dòng)勢(shì)，也可以是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。是一一個(gè)不隨時(shí)間變化的常數(shù)。也可以是一個(gè)元件.上的電流與電壓的相位變化。江蘇薄膜相位差測(cè)量儀</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2230679.html</p></div></div></div></div></div><div id="xrtvsjv" class="page-right twoColRt"><div id="kpryvco" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ixzlce2" 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)" 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