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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**相位差測量儀口碑推薦,相位差測量儀</p><p><span>***更新：</span>2020-10-12 10:03:12</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="q2kjfmy" 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="abyv7ya" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="i8daxew" class="box"><p><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，江蘇**相位差測量儀口碑推薦，這種方法誤差較大，讀數(shù)不方便。為此，我們設(shè)計(jì)了一種數(shù)字相位差測量儀，實(shí)現(xiàn)了兩列信號相位差的自動測量及數(shù)顯。隨著科學(xué)技術(shù)突飛猛進(jìn)的發(fā)展，電子技術(shù)比較廣的應(yīng)用于工業(yè)，江蘇**相位差測量儀口碑推薦、農(nóng)業(yè)、交通運(yùn)輸，江蘇**相位差測量儀口碑推薦、航空航天、**建設(shè)等國民經(jīng)濟(jì)的諸多領(lǐng)域中，而電子測量技術(shù)又是電子技術(shù)中進(jìn)行信息檢測的重要手段，在現(xiàn)代科學(xué)技術(shù)中占有舉足輕重的作用和地位。?對應(yīng)樣品尺寸：可定制，軸角度測量范圍：0°~180°。江蘇**相位差測量儀口碑推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇**相位差測量儀口碑推薦,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281938291016/8047698.png"></div><p style="text-indent:25px">相位差，物理學(xué)概念。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。一臺高精度相位差測量儀對相位差的測量尤為重要。相位差與相位的關(guān)系（1）當(dāng)j12>0時，稱***個正弦量比第二個正弦量的相位越前（或超前）j12；（2）當(dāng)j12<0時，稱***個正弦量比第二個正弦量的相位滯后（或落后）|j12|；（3）當(dāng)j12=0時，稱***個正弦量與第二個正弦量同相，如圖7-1(a）所示；（4）當(dāng)j12=±π或±180°時，稱***個正弦量與第二個正弦量反相；（5）當(dāng)j12=±π/2或±90°時，稱***個正弦量與第二個正弦量正交。相位差示例1.已知u=311sin（314t-30°）V，I=5sin（314t+60°）A，則u與i的相位差為jui=(-30°）-(+60°）=-90°，即u比i滯后90°，或i比u超前90°。相位差的取值范圍和初相一樣，小于等于π（180°）.對于超出范圍的，同樣可以用加減2Nπ來解決.2.研究交流電路的相位差.如果電路含有電感和電容，對于純電容電路電壓相位滯后于電流（電壓滯后電流多少度也可以表述成電流超前電壓多少度），純電感電路電流相位滯后于電壓。江蘇RETS-100L相位差測量儀專業(yè)服務(wù)PLM-100根據(jù)客戶樣品尺寸定制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇**相位差測量儀口碑推薦,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283374638672/8786600.png"></div><p style="text-indent:25px">相位調(diào)整相位調(diào)整是指在有些超低聲響箱上加裝的一個操控機(jī)構(gòu)。用于對超低聲響箱所重放出的聲響稍許加以推遲，從而讓超低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，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。</p><p> 相位差測試儀的發(fā)展與現(xiàn)狀 </p> <p> 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(yùn)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(jì)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:***個階段是早期采用的諸如阻抗法、和/差法、三電壓法、對比法和平衡法等，雖方法簡單，但測量精度較低，第二階段是利用數(shù)字 </p> <p> <br /> </p> <p> <br /> </p> <p> 專用電路，微處理器、FPGA/CPLD、 DSP 等構(gòu)成測相系統(tǒng)，使測量精度得以大大提高，第三階段是充分利用計(jì)算機(jī)及智能化虛擬測量技術(shù)，從而大大簡化設(shè)計(jì)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)。 </p> <p> <br /> </p> <p> <br /> 此光軸跟基方向呈現(xiàn)吸收狀態(tài)(透光率比較低)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇**相位差測量儀口碑推薦,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282805332031/666775.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).高精度軸角度相位差測量儀吸收軸角度/偏光軸角度。江蘇RETS-100L相位差測量儀優(yōu)質(zhì)推薦</p><p style="text-indent:25px">型號PLM-100 技術(shù)參數(shù)：主要測試項(xiàng)目：偏光片吸收軸角度、偏振片偏振方向、波片快軸方向。江蘇**相位差測量儀口碑推薦</p><p style="text-indent:25px">相位測量技能是電子技能中進(jìn)行信息檢測的重要方法,在現(xiàn)代科學(xué)技能中占有無關(guān)宏旨的效果和地位。相位差測試儀是工業(yè)領(lǐng)域中是常常用到的一般測量東西，比如在電力體系中電網(wǎng)并網(wǎng)合閘時,需求兩電網(wǎng)的電信號相同，這就需求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討網(wǎng)絡(luò)、體系的頻率特性中具有重要意義。相位測量的方法許多，典型的傳統(tǒng)方法是經(jīng)過顯示器觀測，這種方法過錯較大，讀數(shù)不方便。為此，我們規(guī)劃了一種數(shù)字相位差測量儀，實(shí)現(xiàn)了兩列信號相位差的主動測量及數(shù)顯。相位差測試儀應(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。由接納器接納并進(jìn)行相位比較，對核相后的效果定性。江蘇**相位差測量儀口碑推薦</p><p style="text-indent:25px">蘇州千宇光學(xué)科技有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家其他型公司。千宇光學(xué)科技致力于為客戶提供良好的高低溫光電綜合系統(tǒng)，彎折機(jī)，，，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批獨(dú)立的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。千宇光學(xué)科技憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1524980.html</p></div></div></div></div></div><div id="tn8k2qs" class="page-right twoColRt"><div id="ke3jip2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3bf28qc" 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="puwyq7v" 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