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id="rkbcev3" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306707148437/9849450.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8g79zam" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>內(nèi)江壓力儀表廠家,壓力儀表</p><p><span>***更新：</span>2020-12-28 06:04:06</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="js2fahy" 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(wǎng)址: </span></p><p><span>手機(jī): </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬達(dá)廣場SOHO公寓2-2-1138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="8ktkhtk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3uw7yzq" class="box"><p><p> 壓力的常識： </p> <p> 1、壓力概念：這里的壓力概念，實(shí)際上指的是物理學(xué)上的壓強(qiáng)，即單位面積上所承受壓力的大小。 </p> <p> 2、壓力的兩種表示方法： </p> <p> ***壓力：以***真空為基準(zhǔn)，高于***真空的壓力； </p> <p> 相對壓力：以大氣壓力作為基準(zhǔn)所標(biāo)示的壓力。 ***壓力=大氣壓力+相對壓力 </p> <p> 壓力表的知識： </p> <p> 1、概念：以大氣壓力為基準(zhǔn)，用于測量小于或大于大氣壓力的儀表。 </p> <p> A、壓力表按其測量精確度，可分為精密壓力表、一般壓力表； </p> <p> B、壓力表按其指示壓力的基準(zhǔn)不同，分為一般壓力表、***壓力表、差壓表； </p> <p> C，內(nèi)江壓力儀表廠家，內(nèi)江壓力儀表廠家、壓力表按其測量范圍，分為真空表、壓力真空表、微壓表、低壓表、中壓表及高壓表； </p> <p> D，內(nèi)江壓力儀表廠家、壓力表按其組成，液柱式，電子式和機(jī)械式。內(nèi)江壓力儀表廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)江壓力儀表廠家,壓力儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306707148437/9849450.jpg"></div><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(jì)量器具正反行程不同時(shí)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(biāo)，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(chǔ) </p> <p> 誤差可分為系統(tǒng)誤差、隨機(jī)誤差和粗大誤差等。 </p> <p> (1)準(zhǔn)確度：測量中系統(tǒng)誤差的反映，表征測量結(jié)果偏離真實(shí)值的程度。 </p> <p> 通常認(rèn)為，測量準(zhǔn)確度是一個定性的概念，不宜將其定量化。例如，不宜說準(zhǔn)確度為0．25%、16mg或±16mg等。在實(shí)際工作中，測量準(zhǔn)確度可以用測量結(jié)果對約定真值的偏移來估計(jì)。內(nèi)江壓力儀表廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)江壓力儀表廠家,壓力儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306215458984/2459454.jpg"></div><p> 計(jì)量檢定 </p> <p> 計(jì)量檢定是指為評定計(jì)量器具的計(jì)量性能，確定其是否合格所進(jìn)行的全部工作，包括檢驗(yàn)和加封蓋印等。它是進(jìn)行量值傳遞的重要形式，是保證量值準(zhǔn)確一致的重要措施。 </p> <p> 計(jì)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(jìn)口檢定、仲裁檢定。 </p> <p> 計(jì)量器具按照管理性質(zhì)的不同，可以分為強(qiáng)制檢定和非強(qiáng)制檢定，兩者又統(tǒng)稱為計(jì)量法制檢定。 </p> <p> 儀表性能指標(biāo) </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(biāo)等。 </p> <p> (1)測量范圍：是指該儀表按規(guī)定的精度進(jìn)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(diǎn)遷移：是指零點(diǎn)的變化，而量程遷移是指量程的變化。 </p> <p> (4)靈敏度：反應(yīng)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(shí)，經(jīng)過足夠時(shí)間儀表指示值達(dá)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(yīng)和分辨的**小輸入量，是靈敏度的一種反應(yīng)。 </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(dāng)薄膜感受壓力而變形時(shí)，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(guān)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(yīng)變式壓力傳感器 </p> <p> 應(yīng)變式壓力傳感器是壓力傳感器中應(yīng)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(yīng)用于測量管道內(nèi)部壓力、內(nèi)燃機(jī)燃?xì)獾膲毫?、壓差和噴射壓力、發(fā)動機(jī)和導(dǎo)彈試驗(yàn)中的脈動壓力，以及各種領(lǐng)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="內(nèi)江壓力儀表廠家,壓力儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107306135712890/2037665.jpg"></div><p> 機(jī)械壓力表中的彈性敏感元件隨著壓力的變化而產(chǎn)生彈性變形。機(jī)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(diǎn)選為大氣壓力。彈性元件在介質(zhì)壓力作用下產(chǎn)生的彈性變形，通過壓力表的齒輪傳動機(jī)構(gòu)放大，壓力表就會顯示出相對于大氣壓的相對值(或高或低)。 </p> <p> 在測量范圍內(nèi)的壓力值由指針顯示，刻度盤的指示范圍一般做成270度。 </p> <p> 在工業(yè)過程控制與技術(shù)測量過程中，由于機(jī)械式壓力表的彈性敏感元件具有很高的機(jī)械強(qiáng)度以及生產(chǎn)方便等特性，使得機(jī)械式壓力表得到越來越***的應(yīng)用。內(nèi)江壓力儀表廠家</p><p style="text-indent:25px">內(nèi)江壓力儀表廠家</p><p style="text-indent:25px">隨著現(xiàn)在科學(xué)技術(shù)的發(fā)展，儀器儀表行業(yè)發(fā)生了突飛猛進(jìn)的發(fā)展，再加上當(dāng)前計(jì)算機(jī)技術(shù)、網(wǎng)絡(luò)技術(shù)的進(jìn)步和發(fā)展，組建網(wǎng)絡(luò)而構(gòu)成實(shí)用的監(jiān)控系統(tǒng)，可以提高生產(chǎn)效率和共享信息資源方向發(fā)展。當(dāng)前儀器儀表行業(yè)產(chǎn)品發(fā)展呈現(xiàn)微型化、多功能化、智能化、網(wǎng)絡(luò)化四大發(fā)展趨勢。在計(jì)算機(jī)和互聯(lián)網(wǎng)的急速發(fā)展到整個世界的背景下，儀器儀表也開始向網(wǎng)絡(luò)化突進(jìn)，結(jié)合新的科技設(shè)備，通過廣域網(wǎng)和局域網(wǎng)直接操控儀器儀表，對公司的管理，經(jīng)營一體化，應(yīng)用模式的分析等各大方面產(chǎn)生影響。有限責(zé)任公司（自然）企業(yè)通過網(wǎng)絡(luò)這個平臺與客戶直接的交流，突破了世界和空間的限制，行家遠(yuǎn)程操控對儀器儀表進(jìn)行維護(hù)和分析。高科技的產(chǎn)品也隨之而來。我國的互聯(lián)網(wǎng)行業(yè)從有到無、從有到繁榮，經(jīng)歷一個高速發(fā)展的階段。而我國的儀器儀表行業(yè)借助互聯(lián)網(wǎng)的發(fā)展平臺開創(chuàng)了一條嶄新發(fā)展之路，開拓耐磨熱電偶，氣體檢測儀器，便攜式氣體報(bào)警控制器，雙金屬溫度計(jì)新市場。中國貿(mào)易型正面臨百年未有之大變局，行業(yè)行家認(rèn)為，中美貿(mào)易戰(zhàn)不會有終點(diǎn)，中美關(guān)系時(shí)好時(shí)壞將成為常態(tài)，儀器儀表行業(yè)無法排除大局勢的影響，且不要把問題聚焦在關(guān)稅上。中國經(jīng)濟(jì)的高速發(fā)展得益于WTO框架下的全球化分工;現(xiàn)在中國制造的競爭力在于工業(yè)門類齊全、供應(yīng)鏈完整、供應(yīng)鏈的高度專業(yè)和細(xì)分。內(nèi)江壓力儀表廠家</p><p style="text-indent:25px">成都皖川科技有限公司擁有研發(fā)、銷售計(jì)算機(jī)軟硬件;計(jì)算機(jī)系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機(jī)械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實(shí)驗(yàn)設(shè)備、化工產(chǎn)品(不含危險(xiǎn)化學(xué)品)、五金交電、照明設(shè)備。等多項(xiàng)業(yè)務(wù)，主營業(yè)務(wù)涵蓋耐磨熱電偶，氣體檢測儀器，便攜式氣體報(bào)警控制器，雙金屬溫度計(jì)。公司目前擁有專業(yè)的技術(shù)員工，為員工提供廣闊的發(fā)展平臺與成長空間，為客戶提供高質(zhì)的產(chǎn)品服務(wù)，深受員工與客戶好評。公司以誠信為本，業(yè)務(wù)領(lǐng)域涵蓋耐磨熱電偶，氣體檢測儀器，便攜式氣體報(bào)警控制器，雙金屬溫度計(jì)，我們本著對客戶負(fù)責(zé)，對員工負(fù)責(zé)，更是對公司發(fā)展負(fù)責(zé)的態(tài)度，爭取做到讓每位客戶滿意。公司力求給客戶提供全數(shù)良好服務(wù)，我們相信誠實(shí)正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為耐磨熱電偶，氣體檢測儀器，便攜式氣體報(bào)警控制器，雙金屬溫度計(jì)行業(yè)出名企業(yè)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2596695.html</p></div></div></div></div></div><div id="p2ta348" class="page-right twoColRt"><div id="3vm82up" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="88pgifg" class="recomPic 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