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tcPro"><section class="home-main container clearfix"><div id="2bnpwyf" class="twoCol"><div id="jc82pw2" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dgyqybwr/">電工儀器儀表</a>?<a href="http://www.cdcfah.com/cp/third-dgyqybwr_glclybib/">功率測量儀表</a>?江蘇RETS-100L相位差測量儀價格實惠蘇州千宇光學(xué)科技供應(yīng)</p><div id="2npme23" class="leftbox clearfix"><h1>江蘇RETS-100L相位差測量儀價格實惠蘇州千宇光學(xué)科技供應(yīng)</h1><div id="8cy3tf3" class="proBig"><div id="z2w3skm" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282455625000/5909694.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7da2rtf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282455625000/5909694.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wpmtvxe" 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RETS-100L相位差測量儀價格實惠,相位差測量儀</p><p><span>***更新：</span>2020-11-17 04:05:24</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cgdaxzb" 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="327uy2f" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2qcz2l3" class="box"><p><p style="text-indent:25px">相位調(diào)整相位調(diào)整是指在有些**聲響箱上加裝的一個操控機(jī)構(gòu)。用于對**聲響箱所重放出的聲響稍許加以推遲，從而讓**聲響箱的輸出能夠和前置主音箱同相位，即具有相同的時間聯(lián)系。相位噪聲相位噪聲是頻率域的概念，是對信號時序改變的另-種測量方法，其結(jié)果在頻率域內(nèi)顯示。如果沒有相位噪聲，那么振蕩器的整個功率都應(yīng)集中在頻率f=fo處。但相位噪聲的出現(xiàn)將振蕩器的一部分功率擴(kuò) 展到相鄰的頻率中去，產(chǎn)生了邊帶(si deband)。從圖2中能夠看出，在離中心頻率-定合理距離的偏移頻率處，江蘇RETS-100L相位差測量儀價格實惠，邊帶功率滾降到1/fm，fm是該頻率偏離中心頻率的差值，江蘇RETS-100L相位差測量儀價格實惠，江蘇RETS-100L相位差測量儀價格實惠。相位噪聲通常界說為在某-給定偏移頻率處的dBc/Hz值，其間，dBc是以dB為單位的該頻率處功率與總功率的比值。一個振蕩器在某一偏移頻率處的相位噪聲界說為在該頻率處1Hz帶寬內(nèi)的信號功率與信號的總功率比值。軸角度測量范圍：0°~180°。江蘇RETS-100L相位差測量儀價格實惠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RETS-100L相位差測量儀價格實惠,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282455625000/5909694.png"></div><p style="text-indent:25px">在離中心頻率一定合理距離的偏移頻率處，邊帶功率滾降到1/fm，fm是該頻率偏離中心頻率的差值。相位噪聲通常定義為在某一給定偏移頻率處的dBc/Hz值，其中，dBc是以dB為單位的該頻率處功率與總功率的比值。一個振蕩器在某一偏移頻率處的相位噪聲定義為在該頻率處1Hz帶寬內(nèi)的信號功率與信號的總功率比值。相位差兩個頻率相同的交流電相位的差叫做相位差，或者叫做相差。這兩個頻率相同的交流電，可以是兩個交流電流，可以是兩個交流電壓，可以是兩個交流電動勢，也可以是這三種量中的任何兩個。例如研究加在電路上的交流電壓和通過這個電路的交流電流的相位差。如果電路是純電阻，那么交流電壓和交流電流的相位差等于零。也就是說交流電壓等于零的時候，交流電流也等于零，交流電壓變到比較大值的時候，交流電流也變到比較大值。這種情況叫做同相位，或者叫做同相。如果電路含有電感和電容，交流電壓和交流電流的相位差一般是不等于零的，也就是說一般是不同相的，或者電壓超前于電流，或者電流超前于電壓。相位測量當(dāng)今，相位的測量需求日益增長。高精度測距大多采用的是激光相位式測距。相位式測距是通過測量連續(xù)的幅度調(diào)制信號在待測距離上往返傳播所產(chǎn)生的相位延遲。江蘇先進(jìn)相位差測量儀技術(shù)指導(dǎo)測試誤區(qū)：軸角度不是吸收軸角度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RETS-100L相位差測量儀價格實惠,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283752412109/9298150.png"></div><p style="text-indent:25px">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。更有測量兩列同頻信號的相位差在研究網(wǎng)絡(luò)、系統(tǒng)的頻率特性中具備重要意義。相位測量的方法很多，典型的傳統(tǒng)方法是通過顯示器觀測，這種方法誤差較大，讀數(shù)不方便。相位差測試儀應(yīng)用于電力線路、變電所的相位校驗和相序校驗，具有核相、測相序、驗電等功能。具備很強(qiáng)的抗干擾性，適應(yīng)各種電磁場干擾場合。被測高電壓相位信號由采集器取出，經(jīng)過處理后直接發(fā)射出去。接收并進(jìn)行相位比較，對核相后的結(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)各種核相場合。</p><p style="text-indent:25px">來間接的測定信號傳播的時間，從而求得被測距離的。因此，信號相位測量的精度也就決定了測距的精度。相位測量技術(shù)的研究由來已久，**早的研究和應(yīng)用是在數(shù)學(xué)的矢量分析和物理學(xué)的圓周運動以及振動學(xué)方面，隨之在電力部門、機(jī)械部門、航空航天、地質(zhì)勘探、海底資源等方面也相應(yīng)得到重視和發(fā)展。隨著電子技術(shù)和計算機(jī)技術(shù)的發(fā)展，相位測量技術(shù)得到了迅速的發(fā)展，目前相位測量技術(shù)已較完善，測量方法及理論也比較成熟，相位測量儀器已系列化和商品化?，F(xiàn)代相位測量技術(shù)的發(fā)展可分為三個階段：***階段是在早期采用的諸如阻抗法、和/差法、三電壓法、比對法和平衡法等，雖然方法簡單，但測量精度較低；第二階段是利用數(shù)字**電路、微處理器、FPGA/CPLD、DSP等構(gòu)成測相系統(tǒng)，使測量精度得以**提高；第三階段是充分利用計算機(jī)及智能化虛擬測量技術(shù)，從而**簡化設(shè)計程序，增強(qiáng)功能，使得相應(yīng)的產(chǎn)品精度更高、功能更全。同時，各種新的算法也隨之出現(xiàn)。相位測量是正弦信號經(jīng)過不同的時間或不同的網(wǎng)絡(luò)后可以有不同的相位。通常所謂相位測量是指對兩個同頻率信號之間相位差的測量。**常見的是對網(wǎng)絡(luò)輸入與輸出信號的相位差，即網(wǎng)絡(luò)相移的測量。精心打造的每一-臺設(shè)備出貨前都會用**計量標(biāo)準(zhǔn)片進(jìn)行校驗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RETS-100L相位差測量儀價格實惠,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282979365234/1669802.png"></div><p style="text-indent:25px">相位檢測儀器工作原理數(shù)字相位計一般采用相位-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)字化是采用填充計數(shù)法實現(xiàn)的，即用周期為τ的脈沖分別對△t和T進(jìn)行計數(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現(xiàn).測量波段：550nm單波段可升級為380nm~780nm 上料方式：手動上料。江蘇先進(jìn)相位差測量儀技術(shù)指導(dǎo)</p><p style="text-indent:25px">此光軸跟基方向呈現(xiàn)吸收狀態(tài)(透光率比較低)。江蘇RETS-100L相位差測量儀價格實惠</p><p style="text-indent:25px">相位差測量儀PLM-100系列測試誤區(qū) 配向角（取向角）是指軸角嗎？否。配向角是軸角在垂直方向的投影。當(dāng)水平放置樣品時，配向角=軸角。當(dāng)樣品傾斜時，配向角會隨著樣品的翻轉(zhuǎn)而變化，所以在測量配向角時候，需要知道樣品與水平面的夾角。設(shè)備主要運用于：其他光學(xué)材料、蓋板玻璃、雙折射材料、離型膜、補(bǔ)償膜、偏光片 *已通過中國計量用標(biāo)準(zhǔn)片數(shù)據(jù)匹配。 *傅里葉變換解析偏振光，數(shù)據(jù)可靠穩(wěn)定 *可溯源性：可提供計量檢測報告 *專業(yè)性：光學(xué)博士團(tuán)隊合力研發(fā)，追求國產(chǎn)替代。 *精心打造的每一臺設(shè)備出貨前都會用國家i級計量標(biāo)準(zhǔn)片進(jìn)行校驗 *打破國外壟斷江蘇RETS-100L相位差測量儀價格實惠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2022301.html</p></div></div></div></div></div><div id="m7zmp2v" class="page-right twoColRt"><div id="pzrolcz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fp7fmt8" 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="quw82kj" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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