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href="http://www.cdcfah.com/cp/third-dgyqybwr_glclybib/">功率測量儀表</a>?江蘇RETS-100L相位差測量儀口碑推薦蘇州千宇光學科技供應</p><div id="d3sury9" class="leftbox clearfix"><h1>江蘇RETS-100L相位差測量儀口碑推薦蘇州千宇光學科技供應</h1><div id="q22p92d" class="proBig"><div id="2imjlsm" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283103857422/3292206.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rqkmjvk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283103857422/3292206.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ds9wlxu" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>江蘇RETS-100L相位差測量儀口碑推薦,相位差測量儀</p><p><span>***更新：</span>2020-11-17 05:06:31</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qfzlipm" 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="8uwewyk" class="page-proshow02"><p class="title">詳細說明</p><div id="pzjlszg" class="box"><p><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，江蘇RETS-100L相位差測量儀口碑推薦，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，江蘇RETS-100L相位差測量儀口碑推薦，延時產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，江蘇RETS-100L相位差測量儀口碑推薦。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。測量重復性：0.02° （精度業(yè)內比較高）。江蘇RETS-100L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RETS-100L相位差測量儀口碑推薦,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304283103857422/3292206.png"></div><p> 相位差測量是兩同周期正弦電量對應點間角度差值的測量。 </p> <p> 此兩正弦電量可以同為電壓、電流，或一為電壓、一為電流等。對應點常取正弦電量由負到正的過零點，相當于正弦電量函數的初相角。相位差的單位是度或弧度，正、負號表示**或滯后關系。 </p> <p> 待測相位差的正弦電量的頻率范圍很廣，因此采用的測量方法和儀器一般隨頻率的高低來選擇。 </p> <p> 常用的方法： </p> <p> 直接法使用**的儀表如指針式相位表、數字相位表，或采用陰級示波器來測量相位差。采用陰極示波器時，將兩同頻正弦電壓信號分別加到示波器的X、Y軸，得到如圖1所示的橢圓圖形，則兩正弦電壓之間的相位差∮=arc sin(b/α)。這一方法不能判斷兩信號哪一個**或滯后，并且在∮值接近零時，橢圓也退化接近成為一條直線，即b值很小，所以∮值很難測準 </p> <p> 間接法通常采用三電壓表法。一般要求兩電壓信號有一公共點（設為a點），當分別測出兩信號電壓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，兩信號電壓間的相位差當∮很小時，可將Uab或Uca中較大的一個信號電壓分壓，使分壓后兩信號的數值相等。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 江蘇先進相位差測量儀技術指導軸角度測量范圍：0°~180° 數據輸出：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RETS-100L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">相位測量技術的研討由來已久，**早的研討和應用是在數學的矢量分析和物理學的圓周運動以及振動學方面，隨之在電力部分、機械部分、航空航天、地質勘探、海底資源等方面也相應得到注重和展開。跟著電子技術和計算機技術的展開，相位測量技術得到了靈敏的展開，現(xiàn)在相位測量技術已較完善，測量方法及理論也比較老練，相位測量儀器已系列化和商品化?，F(xiàn)代相位測:量技術的展開可分為三個階段:***階段是在前期采用的諸如阻抗法、和/差法、三電壓法、比對法和平衡法等，雖然方法簡略，但測量精度較低;第二階段是運用數字**電路、微處理器、FPGA/CPLD、 DSP等構成測相系統(tǒng)，使測量精度得以**提高;第三階段是充分運用計算機及智能化虛擬測量技術，然后**簡化規(guī)劃程序，增強功用，使得相應的產品精度更高、功用更全。一起，各種新的算法也隨之出現(xiàn)。</p><p style="text-indent:25px">相位測量技能是電子技能中進行信息檢測的重要方法,在現(xiàn)代科學技能中占有無關宏旨的效果和地位。相位差測試儀是工業(yè)領域中是常常用到的一般測量東西，比如在電力體系中電網并網合閘時,需求兩電網的電信號相同，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絡、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)方法是經過顯示器觀測，這種方法過錯較大，讀數不方便。為此，我們規(guī)劃了一種數字相位差測量儀，實現(xiàn)了兩列信號相位差的主動測量及數顯。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、驗電等功用。具有很強的抗干擾性，習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，經過處理后直接發(fā)射出去。由接納器接納并進行相位比較，對核相后的效果定性。專業(yè)性:光學博士團隊合力研發(fā)，追求國產替代。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RETS-100L相位差測量儀口碑推薦,相位差測量儀" src="https://tyunfile.71360.com/UploadFile/SZqianyuguangxue/637304282979365234/1669802.png"></div><p style="text-indent:25px">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,適應各種電磁場干擾場合。被測高電壓相位信號由采集器取出，經過處理后直接發(fā)射出去。由接收器接收并進行相位比較,對核相后的結果定性。因本產品是無線傳輸，真正達到安全可靠、快速準確，適應各種核相場合。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。兩個同頻率正弦量的相位差就等于初相之差。是一一個不隨時間變化的常數。也可以是一個元件.上的電流與電壓的相位變化。相位差測試儀的數據輸出：電腦連接。江蘇先進相位差測量儀技術指導</p><p style="text-indent:25px">整機對應樣品皆可定制。江蘇RETS-100L相位差測量儀口碑推薦</p><p style="text-indent:25px">相位介紹相位是與電路結構有關的參數。相位是反映交流電任何時刻的狀態(tài)的物理量。交流電的大小和方向是隨時間變化的。比如正弦交流電流，它的公式是i=Isin2πft。i是交流電流的瞬時值，I是交流電流的比較大值，f是交流電的頻率，t是時間。隨著時間的推移，交流電流可以從零變到比較大值，從比較大值變到零，又從零變到負的比較大值，從負的比較大值變到零。相位(phase)是對于一個波，特定的時刻在它循環(huán)中的位置：一種它是否在波峰、波谷或它們之間的某點的標度。是描述訊號波形變化的度量，通常以度（角度）作為單位，也稱作相角。當訊號波形以周期的方式變化，波形循環(huán)一周即為360°。常應用在科學領域，如數學、物理學等相位調整相位調整是指在有些**音音箱上加裝的一個控制機構。用于對**音音箱所重放出的聲音稍許加以延遲，從而讓**音音箱的輸出能夠和前置主音箱同相位，即具有相同的時間關系。相位噪聲相位噪聲是頻率域的概念，是對信號時序變化的另一種測量方式，其結果在頻率域內顯示。如果沒有相位噪聲，那么振蕩器的整個功率都應集中在頻率f=fo處。但相位噪聲的出現(xiàn)將振蕩器的一部分功率擴展到相鄰的頻率中去，產生了邊帶(sideband)。江蘇RETS-100L相位差測量儀口碑推薦</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2023505.html</p></div></div></div></div></div><div id="8npgsz2" class="page-right twoColRt"><div id="j8ivnfs" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="sholnuw" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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