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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>江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障,相位差測(cè)量?jī)x</p><p><span>***更新：</span>2020-12-17 12:06:36</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="uo3uwyf" 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="a2swia3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3bnp3p7" class="box"><p><p style="text-indent:25px">隨著科學(xué)技術(shù)突飛猛進(jìn)的發(fā)展，江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障，電子技術(shù)比較廣的應(yīng)用于工業(yè)，江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障、農(nóng)業(yè)，江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障、交通運(yùn)輸、航空航天、**建設(shè)等國(guó)民經(jīng)濟(jì)的諸多領(lǐng)域中，而電子測(cè)量技術(shù)又是電子技術(shù)中進(jìn)行信息檢測(cè)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。? 相位差測(cè)試儀是工業(yè)領(lǐng)域中是經(jīng)常用到的一般測(cè)量工具，比如在電力系統(tǒng)中電網(wǎng)并網(wǎng)合閘時(shí)，需要兩電網(wǎng)的電信號(hào)相同，這就需要精確的測(cè)量?jī)晒ゎl信號(hào)之間的相位差。更有測(cè)量?jī)闪型l信號(hào)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(cè)量的方法很多，典型的傳統(tǒng)方法是通過(guò)顯示器觀測(cè)，這種方法誤差較大，讀數(shù)不方便。為此，我們?cè)O(shè)計(jì)了一種數(shù)字相位差測(cè)量?jī)x，實(shí)現(xiàn)了兩列信號(hào)相位差的自動(dòng)測(cè)量及數(shù)顯。整機(jī)對(duì)應(yīng)樣品皆可定制。江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281938291016/8047698.png"></div><p style="text-indent:25px">性能可靠：對(duì)正弦/三角/梯形波/方波的相位差進(jìn)行精密測(cè)量；高度集成，精度高；參數(shù)指標(biāo)：輸入信號(hào)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(gè)量程，自動(dòng)選擇量程測(cè)量精度相位測(cè)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(cè)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(duì)濕度≤90%（40℃）存儲(chǔ)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(cè)相位差原理分析一般測(cè)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(hào)異或后得到的脈沖寬度t與方波信號(hào)的周期T的比值（占空比），即對(duì)應(yīng)為兩信號(hào)的相位差，如下所示：?異或測(cè)量相位差的原理方法2：通過(guò)捕獲處理后的兩通道的方波，就可計(jì)算出相位。江蘇薄膜相位差測(cè)量?jī)x專業(yè)服務(wù)軸角度測(cè)量范圍：0°~180° 數(shù)據(jù)輸出：電腦連接，軸角度精度：±0.05°。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281612314453/3724707.png"></div><p> 相位噪聲通常界說(shuō)為在某-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。- -個(gè)振蕩器在某一偏移頻率處的相位噪聲界說(shuō)為在該頻率處1Hz帶寬內(nèi)的信號(hào)功率與信號(hào)的總功率比值。 </p> <p> 相位差 </p> <p> 兩個(gè)頻率相同的溝通電相位的差叫做相位差，或許叫做相差。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)。 </p> <p> 例如研究加在電路上的溝通電壓和經(jīng)過(guò)這個(gè)電路的溝通電流的相位差。假如電路是純電阻，那么溝通電壓和溝通電流的相位差等于零。也就是說(shuō)溝通電壓等于零的時(shí)分，溝通電流也等于零，溝通電壓變到比較大值的時(shí)分，溝通電流也變到比較大值。這種情況叫做同相位，或許叫做同相。假如電路含有電感和電容,溝通電壓和溝通電流的相位差一般是不等于零的，也就是說(shuō)一般是不同相的，或許電壓超前于電流，或許電流超前于電壓。 </p> <p> <br /> </p> <p> <br /> </p><p style="text-indent:25px">相位差的丈量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。間接法一般選用三電壓表法。 -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(huà)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。測(cè)試誤區(qū)：配向角(取向角)不是指軸角。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282979365234/1669802.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。精心打造的每一-臺(tái)設(shè)備出貨前都會(huì)用**計(jì)量標(biāo)準(zhǔn)片進(jìn)行校驗(yàn)。江蘇拉伸膜相位差測(cè)量?jī)x質(zhì)量推薦</p><p style="text-indent:25px">測(cè)量波段可升級(jí)為380nm~780nm。江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障</p><p style="text-indent:25px">偏光片所屬類別 : 其他基本信息中文名稱：偏光片外文名稱：Polarizer 概述：液晶顯示器的成像必須依靠偏振光標(biāo)準(zhǔn)：是全球公認(rèn)適合駕駛的鏡片分類：碘系偏光片，染料系偏光片偏光片的全稱是偏振光片，液晶顯示器的成像必須依靠偏振光，所有的液晶都有前后兩片偏振光片緊貼在液晶玻璃，國(guó)產(chǎn)相位差測(cè)試儀，組成總厚度1mm左右的液晶片。如果少了任何一張偏光片，液晶片都是不能顯示圖像的。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(lái)是任意角度無(wú)規(guī)則性分布的，PET相位差測(cè)試儀，在一定溫度和濕度條件下，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。江蘇日文王子相位差測(cè)量?jī)x服務(wù)保障</p><p style="text-indent:25px">蘇州千宇光學(xué)科技有限公司發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大，現(xiàn)有一支專業(yè)技術(shù)團(tuán)隊(duì)，各種專業(yè)設(shè)備齊全。在千宇光學(xué)科技近多年發(fā)展歷史，公司旗下現(xiàn)有品牌千宇光學(xué)科技等。公司以用心服務(wù)為重點(diǎn)價(jià)值，希望通過(guò)我們的專業(yè)水平和不懈努力，將研發(fā)、銷售：光電材料、電子元器件、計(jì)算機(jī)軟硬件；并提供光電材料、電子元器件、軟件科技領(lǐng)域內(nèi)的技術(shù)開(kāi)發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓；銷售：半導(dǎo)體材料、儀器儀表、電動(dòng)工具、五金；加工、組裝：自動(dòng)化設(shè)備、機(jī)械設(shè)備；承接：機(jī)械工程、上門維修、租賃服務(wù)；從事上述產(chǎn)品及技術(shù)的進(jìn)出口業(yè)務(wù)。（依法須經(jīng)批準(zhǔn)的項(xiàng)目。經(jīng)相關(guān)部門批準(zhǔn)后方可開(kāi)展經(jīng)營(yíng)活動(dòng)）等業(yè)務(wù)進(jìn)行到底。千宇光學(xué)科技始終以質(zhì)量為發(fā)展，把顧客的滿意作為公司發(fā)展的動(dòng)力，致力于為顧客帶來(lái)***的高低溫光電綜合系統(tǒng)，彎折機(jī)，相位差測(cè)試儀，軸角度測(cè)試儀。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2444042.html</p></div></div></div></div></div><div id="mumed82" class="page-right twoColRt"><div id="u7eb2x9" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nrjlfgn" 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