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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>陜西省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>陜西陶瓷芯壓力變送器廠家,壓力變送器</p><p><span>***更新：</span>2020-12-07 02:15:26</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="xlt9rpb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">西安倫騫電器設(shè)備有限責(zé)任公司</a></p><p><span>聯(lián)系人：</span>付海飛</p><p><span>郵箱: </span>xalunqian@163.com</p><p><span>電話: </span>13891837328</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://xalunqian.shop.88360.com</p><p><span>手機(jī): </span>138-91837328</p><p><span>地址: </span>高新區(qū)發(fā)展大道25號(hào)軍民融合創(chuàng)新港</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="vjzftzx" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="7xbpvb7" class="box"><p><p> 壓力變送器采用電流輸出的方式有很多優(yōu)勢(shì)：diyi、壓力變送器不易受寄生熱電偶和沿電線電阻壓降和溫漂的影響，常規(guī)導(dǎo)線就能滿(mǎn)足工況需求；可節(jié)省大量電纜線和安裝費(fèi)用。第二、當(dāng)壓力變送器電流源輸出電阻足夠大時(shí)，經(jīng)磁場(chǎng)耦合感應(yīng)到導(dǎo)線環(huán)路內(nèi)的電壓，不會(huì)產(chǎn)生明顯影響，因?yàn)楦蓴_源引起的電流極小，一般利用雙絞線就能降低干擾；三線制與四線制必須用屏蔽線，屏蔽線的屏蔽層要妥善接地。第三、電容性干擾會(huì)導(dǎo)致jieshouqi電阻產(chǎn)生有關(guān)誤差，對(duì)于4~ 20mA 兩線制環(huán)路， jieshouqi電阻通常為2508 （取樣Uou t=1~ 5V ）這個(gè)電阻小到不足以產(chǎn)生明顯誤差，因此，可以允許的電線長(zhǎng)度比電壓遙測(cè)系統(tǒng)更長(zhǎng)更遠(yuǎn)。第四、壓力變送器各個(gè)單臺(tái)示讀裝置或記錄裝置可以在電線長(zhǎng)度不等的不同通道間進(jìn)行換接，不因電線長(zhǎng)度的不等而造成精度的差異，從而實(shí)現(xiàn)分散采集、集中控制，陜西陶瓷芯壓力變送器廠家。第五、將4mA 用于零電平，使判斷開(kāi)路與短路或壓力變送器損壞（ 0mA 狀態(tài)）十分方便。第六，陜西陶瓷芯壓力變送器廠家、壓力變送器的兩線輸出口非常容易增設(shè)一兩只防雷防浪涌器件，陜西陶瓷芯壓力變送器廠家，有利于安全防雷防爆。 </p> <p> <br /> 壓力變送器是一種接受壓力變量,經(jīng)傳感轉(zhuǎn)換后,將壓力變化量按一定比例轉(zhuǎn)換為標(biāo)準(zhǔn)輸出信號(hào)的儀表。陜西陶瓷芯壓力變送器廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西陶瓷芯壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438873701172/3612278.png"></div>壓力變送器根據(jù)原理與結(jié)構(gòu)的不同，有著千差萬(wàn)別的類(lèi)型，怎樣通過(guò)實(shí)際的測(cè)量目的、測(cè)量對(duì)象和測(cè)量環(huán)境合理地選擇壓力變送器，這是我們?cè)谶M(jìn)行壓力測(cè)量時(shí)，首先要考慮的因素。只有確定好壓力變送器之后，才能更好的確定配套測(cè)量方法和測(cè)量設(shè)備的選擇。極大的保障了整個(gè)測(cè)量系統(tǒng)的合理應(yīng)用。 <p> 根據(jù)測(cè)量對(duì)象與測(cè)量環(huán)境確定壓力變送器的類(lèi)型。 </p> <p> 選擇壓力變送器進(jìn)行具體的測(cè)量工作時(shí)，首先要進(jìn)行綜合分析，對(duì)比哪種壓力變送器更為合適。這就需要根據(jù)被測(cè)量的特點(diǎn)和壓力變送器的使用條件分析。 </p> <p> 要解決以下一些具體問(wèn)題： </p> <p> 量程的大小；被測(cè)位置對(duì)變送器體積的要求；測(cè)量方式為接觸式還是非接觸式；信號(hào)的引出方法，有線或是無(wú)線；元器件的來(lái)源，國(guó)產(chǎn)還是進(jìn)口，價(jià)格能否承受等因素。 </p> <p> 以上這些因素我們的現(xiàn)場(chǎng)使用實(shí)際是什么樣的，就選擇相對(duì)應(yīng)的壓力變送器形式。這個(gè)是比較好選擇和控制的。用戶(hù)根據(jù)自己的現(xiàn)場(chǎng)進(jìn)行選擇就好。這就是我們對(duì)壓力變送器選用的第一步。做好這一步我們才能進(jìn)行接下來(lái)具體性能參數(shù)的選擇。陜西恒壓供水壓力變送器哪個(gè)好在壓力變送器的線性范圍內(nèi)，變送器的靈敏度越高越好，有利于信號(hào)處理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西陶瓷芯壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438938095703/4859570.png"></div><p> 壓力變送器問(wèn)題分析歸納： </p> <p> 1、變送器要測(cè)量什么樣的壓力：先確定系統(tǒng)中要確認(rèn)測(cè)量壓力的zui大值，一般而言，需要選擇一個(gè)具有比zui大值還要大1.5倍左右的壓力量程的變送器。這主要是在許多系統(tǒng)中，尤其是水壓測(cè)量和加工處理中，有峰值和持續(xù)不規(guī)則的上下波動(dòng)，這種瞬間的峰值能破壞壓力傳感器，持續(xù)的高壓力值或稍微超出變送器的標(biāo)定最大值會(huì)縮短傳感器的壽命，然而，由于這樣做會(huì)精度下降。于是，可以用一個(gè)緩沖器來(lái)降低壓力毛刺，但這樣會(huì)降低傳感器的響應(yīng)速度。所以在選擇變送器時(shí)，要充分考慮壓力范圍，精度與其穩(wěn)定性。 </p> <p> 2、什么樣的壓力介質(zhì)：我們要考慮的是壓力變送器所測(cè)量的介質(zhì),黏性液體、泥漿會(huì)堵上壓力接口，溶劑或有腐蝕性的物質(zhì)會(huì)不會(huì)破壞變送呂中與這些介質(zhì)直接接觸的材料。以上這些因素將決定是否選擇直接的隔離膜及直接與介質(zhì)接觸的材料。一般的壓力變送器的接觸介質(zhì)部分的材質(zhì)采用的是316不銹鋼,如果你的介質(zhì)對(duì)316不銹鋼沒(méi)有腐蝕性,那么基本上所有的壓力變送器都適合你對(duì)介質(zhì)壓力的測(cè)量.如果你的介質(zhì)對(duì)316不銹鋼有腐蝕性，那么我們就要采用化學(xué)密封起到保護(hù)壓力變送器,延長(zhǎng)了壓力變送器的壽命. </p><p> 壓力變送器的噪聲現(xiàn)象 </p> <p> 壓力變送器的噪聲分為內(nèi)噪聲與外噪聲，其中內(nèi)噪聲又包括熱噪聲和散粒噪聲。什么是壓力變送器的噪聲，這對(duì)我們的現(xiàn)場(chǎng)使用又有什么影響，我們要怎樣進(jìn)行壓力變送器的降噪呢？ </p> <p> 熱噪聲:熱噪聲主要來(lái)源于壓力變送器自身，這種噪聲是不能被根除的，只能使用阻值小的電阻進(jìn)行配合使用，以此來(lái)降低熱噪聲的大小。還有，需注意的一點(diǎn)就是，壓力變送器的熱噪聲與頻帶寬這一要素有著密切聯(lián)系。因此，在壓力變送器熱噪聲的降低中，還可選擇窄頻帶放大器的方法。 </p> <p> 散粒噪聲:這一噪聲產(chǎn)生的原理在于帶電粒子在電極上引起電容效應(yīng)的過(guò)程。電容效應(yīng)包括電容放電和電流噪聲兩種情況，為了降低壓力變送器的散粒噪聲，可以使用窄頻帶的放大器。 </p> <p> 外噪聲:壓力變送器外噪聲指的是自然干擾或人為干擾形成的噪聲，外噪聲的來(lái)源主要包括雷電、電氣等等。同時(shí)，當(dāng)壓力變送器帶有公共電源時(shí)，電流的頻繁變化就會(huì)引起噪聲的產(chǎn)生。對(duì)于人為因素引起的壓力變送器噪聲，我們可以對(duì)這些變量進(jìn)行控制，但對(duì)于那些自然現(xiàn)象引起的外在噪聲，則是無(wú)法避免的。 </p> <p> 壓力變送器的噪聲會(huì)降低變送器的分辨率及測(cè)量精度，還會(huì)對(duì)控制系統(tǒng)產(chǎn)生影響。在壓力變送器的使用過(guò)程中需要多加注意。壓力變送器價(jià)格在信號(hào)需要遠(yuǎn)距離傳輸或使用環(huán)境中電網(wǎng)干擾較大的場(chǎng)合，電壓輸出型傳感器的使用受到限制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西陶瓷芯壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438680429688/3508761.png"></div><p style="text-indent:25px">在選用壓力變送器之初，要對(duì)現(xiàn)場(chǎng)使用工況進(jìn)行分析，根據(jù)具體使用環(huán)境選擇適合的壓力變送器，還要采取適當(dāng)?shù)拇胧?，減少環(huán)境對(duì)壓力變送器的影響。壓力變送器穩(wěn)定性有定量指標(biāo)，在超過(guò)使用期后，需要重新進(jìn)行標(biāo)定，以確保壓力變送器的性能是否發(fā)生變化。在某些要求壓力變送器能長(zhǎng)期使用而又不能輕易更換或標(biāo)定的場(chǎng)合，所選用的壓力變送器穩(wěn)定性要求更嚴(yán)格，要能夠經(jīng)受住長(zhǎng)時(shí)間的考驗(yàn)。壓力變送器穩(wěn)定性有著重要的意義，選擇高穩(wěn)定性的壓力變送器是非常有必要的。在高穩(wěn)定性能這個(gè)基礎(chǔ)前提下，才能制造出具有高準(zhǔn)確度、高可靠性等能力的壓力變送器。壓力變送器穩(wěn)定性對(duì)于生產(chǎn)的正常運(yùn)行以及壽命的使用都有著重要的影響。能與各種型號(hào)的動(dòng)圈式指示儀、數(shù)字壓力表、電子電位差計(jì)配套使用，也能與智能調(diào)節(jié)儀或計(jì)算機(jī)系統(tǒng)配套使用。陜西陶瓷芯壓力變送器廠家</p><p style="text-indent:25px">變送器當(dāng)兩側(cè)壓力不一致時(shí)，壓力變送器和***壓力變送器的工作原理和差壓變送器相同。陜西陶瓷芯壓力變送器廠家</p><p style="text-indent:25px">防爆型壓力變送器品種規(guī)格齊全、安裝使用簡(jiǎn)便、安全防爆，可廣泛應(yīng)用于石化、電力、冶金、制藥、食品加工等行業(yè)，產(chǎn)品符合"IEC"標(biāo)準(zhǔn)，防爆型壓力變送器選用國(guó)際有名公司高精度、高穩(wěn)定性壓力傳感器組件，經(jīng)過(guò)高可靠性的放大電路及精密溫度補(bǔ)償，將被測(cè)介質(zhì)的絕壓或表壓轉(zhuǎn)換成4~20mA，0~5VDC，0~10VDC及1~5VDC等標(biāo)準(zhǔn)電信號(hào)。高質(zhì)量的傳感器、全密封焊接的封裝技術(shù)以及完善的裝配工藝確保了該產(chǎn)品的優(yōu)異質(zhì)量和zui佳性能。該產(chǎn)品有多種接口形式和多種引線方式，能夠zui 大限度的滿(mǎn)足客戶(hù)的需要,適用于與各種測(cè)量控制設(shè)備配套使用。陜西陶瓷芯壓力變送器廠家</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2295854.html</p></div></div></div></div></div><div id="rffd9hb" class="page-right twoColRt"><div id="dt9j7jp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dzjhpvl" 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" 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