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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637437329741108603/9736481.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qubicnt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637437329741108603/9736481.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8tfcj8i" 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)品關鍵詞：</span>蘇州光軸測試儀代理商,光軸測試儀</p><p><span>***更新：</span>2021-02-05 10:05:37</p><p><span id="click" >瀏覽次數(shù)：8次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jd3pubc" 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: </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="oic8m8y" class="page-proshow02"><p class="title">詳細說明</p><div id="mlsj77v" class="box"><p><p style="text-indent:25px">隨著科學技術突飛猛進的發(fā)展，電子技術比較廣的應用于工業(yè)、農(nóng)業(yè)、交通運輸、航空航天、**建設等國民經(jīng)濟的諸多領域中，而電子測量技術又是電子技術中進行信息檢測的重要手段，在現(xiàn)代科學技術中占有舉足輕重的作用和地位。實現(xiàn)了兩列信號相位差的自動測量及數(shù)顯。近年來，隨著科學技術的迅速發(fā)展，很多測量儀逐漸向“智能儀器”和“自動測試系統(tǒng)”發(fā)展，這使得儀器的使用比較簡單，功能越越多。? 相位差測試儀應用于電力線路、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。具備很強的抗干擾性，蘇州光軸測試儀代理商，蘇州光軸測試儀代理商，適應各種電磁場干擾場合，蘇州光軸測試儀代理商。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。接收并進行相位比較，對核相后的結果定性。對應樣品尺寸：可定制。蘇州光軸測試儀代理商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州光軸測試儀代理商,光軸測試儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637437329741108603/9736481.png"></div><p style="text-indent:25px">相位差測試儀是工業(yè)領域中是經(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、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。為此，我們設計了一種數(shù)字相位差測量儀，實現(xiàn)了兩列信號相位差的自動測量及數(shù)顯。近年來,隨著科學技術的迅速發(fā)展，很多測量儀逐漸向“智能儀器”和“自動測試系統(tǒng)”發(fā)展，這使得儀器的使用比較簡單，功能越越多。蘇州光軸測試儀代理商相位差測試儀有：日本大冢相位差測試儀。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州光軸測試儀代理商,光軸測試儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637437328594633956/3586155.png"></div><p style="text-indent:25px">若我們將一個信號周期看作是?360，則相差的范圍就在0°～360°。：兩個同頻信號之間的移相，?是電子行業(yè)繼電保護領域中模擬、分析問題的一個重要手段，利用移?相原理可以制作校驗各種有關相位的儀器儀表、繼電保護裝置的信號?源。因此，移相技術有著很廣的實用價值。我們知道，將參考信號整?形為方波信號，并以此信號為基準，延時產(chǎn)生另一個同頻的方波信號，?再通過波形變換電路將方波信號還原成正弦波信號。以延時的長短來?決定兩信號間的相位值。這種處理方式的實質是將延時的時間映射為?信號間的相位值。也就是說，只要能夠測量出該延遲時間，我們就可?以推算出其相位差值。</p><p style="text-indent:25px">隨著科學技術突飛猛進的發(fā)展，電子技術比較廣的應用于工業(yè)、農(nóng)業(yè)、交通運輸、航空航天、**建設等國民經(jīng)濟的諸多領域中，而電子測量技術又是電子技術中進行信息檢測的重要手段，在現(xiàn)代科學技術中占有舉足輕重的作用和地位。? 相位差測試儀是工業(yè)領域中是經(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、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。為此，我們設計了一種數(shù)字相位差測量儀，實現(xiàn)了兩列信號相位差的自動測量及數(shù)顯。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="蘇州光軸測試儀代理商,光軸測試儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637437329707749447/1878533.png"></div><p> 一種偏振片，其特征在于，在聚乙烯醇系偏振膜的至少單面上，介由粘合劑層層合有保護膜而成，上述粘合劑層由放射線固化性組合物的固化物形成，所述放射線固化性組合物包含（A）脂環(huán)式環(huán)氧化合物、（B）至少具有1個羥基且數(shù)均分子量為500以上的化合物以及（C）光致酸發(fā)生劑。 </p> <p> 偏振片還要求翹曲少。即，偏振片為了防止液晶單元被紫外線損傷，必須在偏振片使用的保護膜中的一方添加紫外線吸收劑，或者設置紫外線吸收層。因此，在制造偏振片中使粘合劑固化時，實質上只能從未添加紫外線吸收劑的保護膜側進行光照射，因而呈2層的粘合劑層的照射強度產(chǎn)生差。其結果是，有時層合形成的偏振片產(chǎn)生翹曲而對其后的加工性產(chǎn)生影響。相位差延遲量、橢偏率、配向角，色度、多波段測試(380nm~780nm）。蘇州光軸測試儀代理商</p><p style="text-indent:25px">測量波段：550nm單波段，上料方式：手動上料。蘇州光軸測試儀代理商</p><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的基準電壓，然后送至相應的整形電路整形為方波，此時對稱調整電路會對這兩個信號進行對稱調整，使得測量結果更準確，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時間內所填充的脈沖個數(shù), n2為T時間內所填充的脈沖個數(shù)。由于不同的信號電壓大小不同，所以他們需要進入不同的衰減電路,才能保證整個電路的安全和測量的準確性,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-一個范圍內的基準信號，這就需要通過衰減器來實現(xiàn).蘇州光軸測試儀代理商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3175126.html</p></div></div></div></div></div><div id="os7e2hi" class="page-right twoColRt"><div id="utf2p33" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ztkbnzv" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="wqc7xoq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個科目真誠推薦寧波助學商務信息咨詢供應" class="vcenter" 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