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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="377axzl" class="twoCol"><div id="wvkwamy" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_gydqew/">高壓電器</a>?<a href="http://www.cdcfah.com/cp/third-gydqew_gykggek/">高壓開關柜</a>?德陽壓力儀表銷售真誠推薦成都皖川科技供應</p><div id="l39gya7" class="leftbox clearfix"><h1>德陽壓力儀表銷售真誠推薦成都皖川科技供應</h1><div id="gkjl9pb" class="proBig"><div id="dxe732g" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306215458984/2459454.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3d2egiy" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306215458984/2459454.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mb78ojl" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>德陽壓力儀表銷售,壓力儀表</p><p><span>***更新：</span>2020-11-14 01:06:19</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="8tsb4r2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都皖川科技有限公司</a></p><p><span>聯(lián)系人：</span>朱成生</p><p><span>郵箱: </span>cdwckjgs@sina.com</p><p><span>電話: </span>18755046999</p><p><span>傳真: </span>028_87463776</p><p><span>網址: </span></p><p><span>手機: </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬達廣場SOHO公寓2-2-1138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="i2ui92y" class="page-proshow02"><p class="title">詳細說明</p><div id="q8izov8" class="box"><p><p> 誤差的分類 </p> <p> ①***誤差：某被測量的儀表顯示值與約定真值之間的差值。 </p> <p> ②相對誤差：***誤差與約定真值的百分比。 </p> <p> ③引用誤差：***誤差與儀表滿量程的百分比。 </p> <p> ④比較大引用誤差：比較大***誤差與量程的百分比。 </p> <p> ⑤回程誤差：相同條件下，被測量不變，計量器具正反行程不同時其示值之差。 </p> <p> ⑥精度：是衡量儀表測量數(shù)值精確度的重要指標，用比較大引用誤差去掉“±”和“%”表示，其序列為0．005、0．02、0．05、0．1、0．2、1．0、1．5、2．5等。 </p> <p> 誤差分析基礎 </p> <p> 誤差可分為系統(tǒng)誤差、隨機誤差和粗大誤差等。 </p> <p> (1)準確度：測量中系統(tǒng)誤差的反映，表征測量結果偏離真實值的程度。 </p> <p> 通常認為，測量準確度是一個定性的概念，不宜將其定量化。例如，德陽壓力儀表銷售，不宜說準確度為0．25%，德陽壓力儀表銷售、16mg或±16mg等，德陽壓力儀表銷售。在實際工作中，測量準確度可以用測量結果對約定真值的偏移來估計。德陽壓力儀表銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="德陽壓力儀表銷售,壓力儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306215458984/2459454.jpg"></div><p> 儀表的分類方法很多，根據(jù)不同的原則可以分為許多類： </p> <p> <p> (1)檢測儀表的分類 </p> <p> 根據(jù)其檢測被測量的不同分為：溫度檢測儀表、壓力檢測儀表、流量檢測儀表、物位檢測儀表、分析儀表。 </p> <p> (2)顯示儀表的分類 </p> <p> 根據(jù)記錄、指示、模擬和數(shù)字等功能的不同分為：記錄儀表、指示儀表、模擬儀表、數(shù)顯儀表。 </p> <p> (3)在自控儀表的校準、維修、安裝過程中，有些儀表稱為一次儀表，有些儀表稱為二次儀表。 </p> <p> 一次儀表是指安裝在現(xiàn)場且直接與工藝介質相接觸的儀表，如壓變，溫變等。熱電阻、熱電偶一般不稱其為儀表，而稱為感溫元件。實際應用中我們把安裝在現(xiàn)場的儀表(個別除外，如電動閥門定位器)統(tǒng)稱為一次儀表。 </p> <p> 二次儀表是指儀表示值信號不直接來自工藝介質的各類儀表的總稱，其信號通常來自一次儀表的傳送信號。二次儀表通常安裝在值班室內的儀表盤上。 </p> <p> 儀表分類只是為儀表維修、維護、安裝及管理上方便，如何進行分類及稱謂還要根據(jù)實際情況而定。 </p> 德陽壓力儀表銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="德陽壓力儀表銷售,壓力儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306626250000/2926369.jpg"></div><p> 計量檢定 </p> <p> 計量檢定是指為評定計量器具的計量性能，確定其是否合格所進行的全部工作，包括檢驗和加封蓋印等。它是進行量值傳遞的重要形式，是保證量值準確一致的重要措施。 </p> <p> 計量檢定按照管理環(huán)節(jié)的不同，可以分以下五種：周期檢定、出廠檢定、修后檢定、進口檢定、仲裁檢定。 </p> <p> 計量器具按照管理性質的不同，可以分為強制檢定和非強制檢定，兩者又統(tǒng)稱為計量法制檢定。 </p> <p> 儀表性能指標 </p> <p> 檢測儀表中常用的基本性能包括測量范圍及量程、基本誤差、精度等級、靈敏度、分辨率、漂移、可靠性以及抗干擾性能指標等。 </p> <p> (1)測量范圍：是指該儀表按規(guī)定的精度進行測量的被測變量的范圍。 </p> <p> (2)量程：量程=測量上限值-測量下限值。 </p> <p> (3)零點遷移：是指零點的變化，而量程遷移是指量程的變化。 </p> <p> (4)靈敏度：反應儀表對被測參數(shù)變化的靈敏程度，常以在被測參數(shù)改變時，經過足夠時間儀表指示值達到穩(wěn)定狀態(tài)后，儀表輸出變化量與引起此變化的輸入量之比作為靈敏度。 </p> <p> (5)分辨率：又稱靈敏限，它是儀表輸出能響應和分辨的**小輸入量，是靈敏度的一種反應。 </p><p> 電容式壓力傳感器 </p> <p> 它一般采用圓形金屬薄膜或鍍金屬薄膜作為電容器的一個電極，當薄膜感受壓力而變形時，薄膜與固定電極之間形成的電容量發(fā)生變化，通過測量電路即可輸出與電壓成一定關系的電信號。電容式壓力傳感器屬于極距變化型電容式傳感器，可分為單電容式壓力傳感器和差動電容式壓力傳感器。 </p> <p> <p> 應變式壓力傳感器 </p> <p> 應變式壓力傳感器是壓力傳感器中應用比較多的一種傳感器，它一般用于測量較大的壓力，廣泛應用于測量管道內部壓力、內燃機燃氣的壓力、壓差和噴射壓力、發(fā)動機和導彈試驗中的脈動壓力，以及各種領域中的流體壓力等。 </p> </p> <br /><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="德陽壓力儀表銷售,壓力儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107308087539062/5775172.jpg"></div><p> 在工業(yè)過程控制與技術測量過程中，由于機械式壓力表的彈性敏感元件具有很高的機械強度以及生產方便等特性，使得機械式壓力表得到越來越***的應用。 </p> <p> 機械壓力表中的彈性敏感元件隨著壓力的變化而產生彈性變形。機械壓力表采用彈簧管（波登管），膜片，膜盒及波紋管等敏感元件并按此分類。所測量的壓力一般視為相對壓力。一般相對點選為大氣壓力。彈性元件在介質壓力作用下產生的彈性變形，通過壓力表的齒輪傳動機構放大，壓力表就會顯示出相對于大氣壓的相對值(或高或低)。德陽壓力儀表銷售</p><p style="text-indent:25px">德陽壓力儀表銷售</p><p style="text-indent:25px">儀器儀表行業(yè)飛速發(fā)展一是因為我國的經濟高速穩(wěn)定發(fā)展的運行;按照過去的經驗，如果GDP的增長在10%以上時，儀表行業(yè)的增長率則在26%～30%之間。二是因為我國宏觀調控對儀表行業(yè)的影響有一個滯后期，儀表往往在工程的后期才交付使用，因此，因宏觀調控政策而減少的收入對儀表行業(yè)的影響不會太大。我國現(xiàn)有有限責任公司（自然）企業(yè)數(shù)千多家，已經形成門類品種比較齊全，具有一定技術基礎和生產規(guī)模的產業(yè)體系。但同時業(yè)內行家也指出，雖然我國測試儀器產業(yè)有了一定的發(fā)展，但遠遠不能滿足國民經濟各行各業(yè)日益增長的迫切需求。工業(yè)領域轉型升級、提升發(fā)展質量等有利于儀器儀表行業(yè)的發(fā)展；**安全、社會安全、產業(yè)和信息安全等需要自主、耐磨熱電偶，氣體檢測儀器，便攜式氣體報警控制器，雙金屬溫度計裝備，成為全社會共識；隨著中國的不斷進步，世界上只有一個救世主——市場，能救企業(yè)的只有你自己——自強，提高貿易型重點競爭力才是中國制造業(yè)的獨一出路。以顯微科學儀器行業(yè)的發(fā)展與變化為例，以親身的實踐為例，毛磊認為，隨著經濟的不斷發(fā)展，我國的環(huán)境和實力都發(fā)生了巨大變化，有了完全不同的基礎，這為國產科學儀器走向**增強了信心。德陽壓力儀表銷售</p><p style="text-indent:25px">成都皖川科技有限公司致力于儀器儀表，以科技創(chuàng)新實現(xiàn)***管理的追求。成都皖川科技擁有一支經驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供耐磨熱電偶，氣體檢測儀器，便攜式氣體報警控制器，雙金屬溫度計。成都皖川科技始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。成都皖川科技創(chuàng)始人朱成生，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: 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