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src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281938291016/8047698.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aofbiep" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281938291016/8047698.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="slwsdp7" 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,相位差測(cè)量?jī)x</p><p><span>***更新：</span>2020-12-01 11:06:30</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="qqgco8p" 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="gz7pgxy" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="cawtv7b" 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(gè)操控機(jī)構(gòu)。用于對(duì)**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，江蘇相位差測(cè)量?jī)x，即具有相同的時(shí)間聯(lián)系。相位噪聲相位噪聲是頻率域的概念，是對(duì)信號(hào)時(shí)序改變的另-種測(cè)量方法，其結(jié)果在頻率域內(nèi)顯示。如果沒(méi)有相位噪聲，那么振蕩器的整個(gè)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，江蘇相位差測(cè)量?jī)x。相位噪聲通常界說(shuō)為在某-給定偏移頻率處的dBc/Hz值，其間，江蘇相位差測(cè)量?jī)x，dBc是以dB為單位的該頻率處功率與總功率的比值。一個(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。高精度軸角度相位差透過(guò)率，色度(La、 b)，偏光度。江蘇相位差測(cè)量?jī)x</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,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304281938291016/8047698.png"></div><p> 相位差測(cè)量?jī)x主要是由鎖相環(huán)產(chǎn)生360倍頻基準(zhǔn)信號(hào)和移相網(wǎng)絡(luò)的基準(zhǔn)信號(hào)與待測(cè)信號(hào)進(jìn)行異或后的信號(hào)作為顯示器的閘門電路和控制信號(hào)。頻率測(cè)量模塊主要是用計(jì)數(shù)法測(cè)量頻率的，它是有某個(gè)已知 </p> <p> 標(biāo)準(zhǔn)時(shí)間間隔Ts內(nèi)，測(cè)出被測(cè)信號(hào)重復(fù)出現(xiàn)的次數(shù)N，然后計(jì)算出頻率f=N/Ts.顯示電路模塊主要是由計(jì)數(shù)器、鎖存器、譯碼器和數(shù)碼管組成。 </p> <p> 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。江蘇相位差測(cè)量?jī)x測(cè)量重復(fù)性精度業(yè)內(nèi)** 高。</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,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282372529297/3872049.png"></div><p> 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。近年來(lái)，隨著科學(xué)技術(shù)的迅速發(fā)展，很多測(cè)量?jī)x逐漸向“智能儀器”和“自動(dòng)測(cè)試系統(tǒng)”發(fā)展，這使得儀器的使用比較簡(jiǎn)單，功能越 </p> <p> 越多。 </p><p style="text-indent:25px">跟著科學(xué)技術(shù)日新月異的發(fā)展，電子技術(shù)***的應(yīng)用于工業(yè)、農(nóng)業(yè)、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,而相位測(cè). 量技術(shù)又是電子技術(shù)中進(jìn)行信息檢測(cè)的重要手法，在現(xiàn)代科學(xué)技術(shù)中占有舉足輕重的效果和地位。相位差測(cè)試儀是工業(yè)領(lǐng)域中是常常用到的一般丈量東西,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，這就需要準(zhǔn)確的丈量?jī)晒ゎl信號(hào)之間的相位差。更有丈量?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。相位丈量的辦法許多，典型的傳統(tǒng)辦法是通過(guò)顯示器觀測(cè)，這種辦法差錯(cuò)較大，讀數(shù)不方便。為此，咱們?cè)O(shè)計(jì)了一種數(shù)字相位差丈量?jī)x，實(shí)現(xiàn)了兩列信號(hào)相位差的自動(dòng)丈量及數(shù)顯。近年來(lái)，跟著科學(xué)技術(shù)的迅速發(fā)展，許多丈量?jī)x逐步向“智能儀器”和“自動(dòng)測(cè)試系統(tǒng)”發(fā)展，這使得儀器的使用比較簡(jiǎn)單，功能越越多。軸角度測(cè)量范圍：0°~180，軸角度測(cè)量范圍：0°~180。</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,相位差測(cè)量?jī)x" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282689248047/1940273.png"></div><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。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)。江蘇光學(xué)膜相位差測(cè)量?jī)x專業(yè)服務(wù)</p><p style="text-indent:25px">傾斜旋轉(zhuǎn)臺(tái)規(guī)格:傾斜角度范圍:一60° ~十60' **小角度: 0. 1。旋轉(zhuǎn)角度范舊: - 180° ~+ 180° 旋轉(zhuǎn)**小角度: 0. 1。江蘇相位差測(cè)量?jī)x</p><p> 主要精度數(shù)據(jù)： </p> <p> 測(cè)試對(duì)象：偏光片，相位差膜，光學(xué)膜 </p> <p> 測(cè)試項(xiàng)目：偏光度，透過(guò)率(單體/平行/直交)，色度，相位差（R0/RTH），軸角度，吸收軸角度，消光比 </p> <p> 注：測(cè)試可選擇高精度模式和快速模式 </p> <p> 整機(jī)尺寸：根據(jù)客戶樣品尺寸定制 </p> <p> 對(duì)應(yīng)樣品尺寸：可定制 </p> <p> 測(cè)試光斑：約5mm </p> <p> 軸角度測(cè)量范圍：0°~180° </p> <p> 偏光度 </p> <p> 重復(fù)性：３σ≦０．００１% </p> <p> 可實(shí)現(xiàn)指定波長(zhǎng)透過(guò)率測(cè)量 </p> <p> 軸角度精度：±0.05°（高精度模式） </p> <p> 測(cè)量重復(fù)性：0.02° （高精度模式） </p> <p> 相位差測(cè)亮范圍：0~20000nm </p> <p> 相位差重復(fù)性精度：３σ≦０．１nm； </p> <p> 測(cè)量波段：400nm~800nm </p> <p> 傾斜旋轉(zhuǎn)臺(tái)規(guī)格：傾斜角度范圍：－60°～＋60°**小角度：０．１° </p> <p> 旋轉(zhuǎn)角度范圍：－180°～＋180° </p> <p> 旋轉(zhuǎn)**小角度：０．１° 江蘇相位差測(cè)量?jī)x</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2222429.html</p></div></div></div></div></div><div id="u3h8bxo" class="page-right twoColRt"><div id="7zbmt3a" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="sbse74m" 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="8g83zg8" 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