技術文章
Technical articles一(yi)、簡(jian)介：單法蘭差壓變送器采(cai)用先進的(de)微處(chu)理(li)技(ji)術及數字通(tong)訊技(ji)術。除具(ju)有(you)常規智能(neng)式的(de)全部功能(neng)外(wai)，還具(ju)有(you)一(yi)系列增強的(de)功能(neng)，如(ru)零點自(zi)動調(diao)整，遠(yuan)程就地控(kong)(kong)制參(can)數查看與調(diao)整控(kong)(kong)制參(can)數密(mi)碼鎖定(ding)等。同時(shi)通(tong)過(guo)現(xian)場(chang)(chang)總(zong)線HART協議，進行遠(yuan)程參(can)數設定(ding)、遠(yuan)程控(kong)(kong)制、自(zi)診斷等功能(neng)。二、現(xian)場(chang)(chang)總(zong)線通(tong)信能(neng)力：單法蘭差壓變送器的(de)現(xian)場(chang)(chang)總(zong)線是(shi)(shi)雙(shuang)向數字通(tong)信系統，是(shi)(shi)配置儀表控(kong)(kong)制系統的(de)革新技(ji)術，同時(shi)也是(shi)(shi)前景很好的(de)更新換(huan)代產品，用于替(ti)換(huan)現(xian)在(zai)現(xian)場(chang)(chang)儀表中廣泛使(shi)用的(de)標準4~20mA模擬通(tong)信。提供兩種現(xian)場(chang)(chang)總(zong)線模式，FOUNDATION...
一、概述(shu)用(yong)(yong)(yong)于(yu)測量旋轉(zhuan)機(ji)械的(de)軸承蓋軸瓦振(zhen)動(dong)。該變送(song)器(qi)具有體(ti)積小、精度(du)高、安(an)裝方便,變送(song)器(qi)供電(dian)電(dian)源(yuan)為(wei)DC24V,可(ke)用(yong)(yong)(yong)于(yu)振(zhen)動(dong)幅度(du)、振(zhen)動(dong)烈度(du)的(de)在線測量，輸出(chu)標(biao)準電(dian)流(liu)為(wei)4～20mA，便于(yu)用(yong)(yong)(yong)戶(hu)接(jie)入計算機(ji)DCS系(xi)統，用(yong)(yong)(yong)戶(hu)可(ke)根據實(shi)際使用(yong)(yong)(yong)情況進行選(xuan)購。若用(yong)(yong)(yong)戶(hu)需要，本廠(chang)可(ke)提(ti)供AC220V轉(zhuan)換DC24V直流(liu)穩壓電(dian)源(yuan)。二、技(ji)術指標(biao)測量范圍：頻(pin)率10～300Hz振(zhen)幅0～200um或0～300um（P-P）振(zhen)速0～20mm/s或0～30mm/s（均方根值(zhi)）供電(dian)電(dian)源(yuan)：DC24V功耗≤5W使用(yong)(yong)(yong)環境：變送(song)器(qi)-...
振(zhen)(zhen)動(dong)(dong)(dong)速度(du)傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)用于(yu)(yu)檢測旋轉機(ji)(ji)(ji)械的振(zhen)(zhen)動(dong)(dong)(dong)，如機(ji)(ji)(ji)殼振(zhen)(zhen)動(dong)(dong)(dong)，軸瓦振(zhen)(zhen)動(dong)(dong)(dong)，機(ji)(ji)(ji)械振(zhen)(zhen)動(dong)(dong)(dong)等(deng)(deng)；檢測由(you)(you)于(yu)(yu)轉子的不平衡、不對中(zhong)、機(ji)(ji)(ji)件(jian)(jian)(jian)松動(dong)(dong)(dong)、滾(gun)動(dong)(dong)(dong)軸承損(sun)壞(huai)、齒輪損(sun)壞(huai)等(deng)(deng)引起的振(zhen)(zhen)動(dong)(dong)(dong)變(bian)化。磁電(dian)(dian)式振(zhen)(zhen)動(dong)(dong)(dong)速度(du)傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)適用于(yu)(yu)氣輪機(ji)(ji)(ji)、水(shui)輪機(ji)(ji)(ji)、風機(ji)(ji)(ji)、壓縮機(ji)(ji)(ji)、制氧機(ji)(ji)(ji)、電(dian)(dian)機(ji)(ji)(ji)、泵、齒輪箱等(deng)(deng)大型(xing)旋轉機(ji)(ji)(ji)械。利用磁電(dian)(dian)感(gan)(gan)(gan)應原理(li)把振(zhen)(zhen)動(dong)(dong)(dong)信(xin)號轉換成(cheng)電(dian)(dian)信(xin)號。它主(zhu)要(yao)由(you)(you)磁路系統、線(xian)(xian)(xian)圈(quan)(quan)組件(jian)(jian)(jian)、彈(dan)簧(huang)(huang)阻尼等(deng)(deng)部(bu)分組成(cheng)。在傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)殼體中(zhong)剛性地固定有兩個線(xian)(xian)(xian)圈(quan)(quan)組件(jian)(jian)(jian)，磁鋼(gang)用彈(dan)簧(huang)(huang)懸掛于(yu)(yu)殼體。當(dang)傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)在工(gong)作(zuo)頻率范圍內工(gong)作(zuo)時，線(xian)(xian)(xian)圈(quan)(quan)與磁鋼(gang)產生(sheng)相對運動(dong)(dong)(dong)，線(xian)(xian)(xian)圈(quan)(quan)切割磁力(li)線(xian)(xian)(xian)，產生(sheng)感(gan)(gan)(gan)應電(dian)(dian)...
一、產(chan)(chan)品(pin)概述PC-200GP擴(kuo)散硅壓(ya)力(li)變(bian)送器用(yong)于測量液(ye)體(ti)、氣體(ti)或蒸(zheng)汽的(de)液(ye)位(wei)、密(mi)度和壓(ya)力(li)，然后轉變(bian)成4～20mADC信號輸出。壓(ya)力(li)變(bian)送器可與HART手操器相互通(tong)訊，通(tong)過它進行設定，監控(kong)或與上(shang)(shang)位(wei)機組成現場(chang)監控(kong)系統。二、工作原理PC-200GP擴(kuo)散硅壓(ya)力(li)變(bian)送器過程壓(ya)力(li)通(tong)過兩(liang)側或一側的(de)隔離(li)膜片、灌充液(ye)傳至d室的(de)中心測量膜片。中心膜片是一個張(zhang)緊的(de)彈性元件，它對于作用(yong)在其上(shang)(shang)的(de)兩(liang)側壓(ya)力(li)差產(chan)(chan)生(sheng)相應變(bian)形位(wei)移(yi)，其位(wei)移(yi)與差壓(ya)成正(zheng)比(bi)，最大位(wei)移(yi)約0.1mm，這種(zhong)位(wei)移(yi)轉變(bian)在電(dian)容極板上(shang)(shang)形成差動(dong)電(dian)容，由(you)電(dian)子...
單法蘭壓(ya)力(li)變(bian)送(song)器(qi)(qi)(qi)具有(you)工作(zuo)可(ke)靠、性(xing)能(neng)(neng)穩定(ding)、安裝使用(yong)方(fang)便、體積小、重量輕、性(xing)能(neng)(neng)價格比(bi)高等點(dian)，能(neng)(neng)在各種(zhong)正(zheng)負壓(ya)力(li)測量中(zhong)得到廣泛應(ying)用(yong)。采用(yong)進口擴散硅(gui)或陶瓷芯(xin)體作(zuo)為(wei)壓(ya)力(li)檢測元(yuan)件，傳感(gan)器(qi)(qi)(qi)信(xin)號(hao)(hao)經高性(xing)能(neng)(neng)電(dian)(dian)子放大器(qi)(qi)(qi)轉(zhuan)換成(cheng)0-10mA或4-20mA統(tong)一(yi)輸出信(xin)號(hao)(hao)。可(ke)替代傳統(tong)的遠傳變(bian)送(song)器(qi)(qi)(qi)，霍爾元(yuan)件、差動(dong)變(bian)送(song)器(qi)(qi)(qi)，而且具備DDZ-Ⅱ及DDZ-Ⅲ型(xing)(xing)(xing)變(bian)送(song)器(qi)(qi)(qi)性(xing)能(neng)(neng)。能(neng)(neng)與各種(zhong)型(xing)(xing)(xing)號(hao)(hao)的動(dong)圈式指示儀、數字(zi)變(bian)送(song)器(qi)(qi)(qi)、電(dian)(dian)子電(dian)(dian)位差計配套使用(yong)，也能(neng)(neng)與各種(zhong)自動(dong)調(diao)節系統(tong)或計算機系統(tong)配套使用(yong)。適(shi)用(yong)性(xing)廣：產品有(you)多種(zhong)型(xing)(xing)(xing)號(hao)(hao)，多種(zhong)連接規格及接觸(chu)...
工(gong)作原理工(gong)作時，高、低(di)壓(ya)側(ce)的(de)(de)隔離膜(mo)(mo)(mo)片和灌(guan)充液(ye)將過程壓(ya)力(li)傳(chuan)(chuan)遞給灌(guan)充液(ye)，接著灌(guan)充液(ye)將壓(ya)力(li)傳(chuan)(chuan)遞到(dao)傳(chuan)(chuan)感(gan)(gan)器中心的(de)(de)傳(chuan)(chuan)感(gan)(gan)膜(mo)(mo)(mo)片上。傳(chuan)(chuan)感(gan)(gan)膜(mo)(mo)(mo)片是(shi)一(yi)(yi)個張緊的(de)(de)彈性元件(jian)，其位(wei)(wei)移(yi)隨所受壓(ya)而(er)變(bian)化(hua)（對于(yu)GP表壓(ya)變(bian)送器，大氣壓(ya)如(ru)同施加在(zai)傳(chuan)(chuan)感(gan)(gan)膜(mo)(mo)(mo)片的(de)(de)低(di)壓(ya)側(ce)一(yi)(yi)樣(yang)）。AP絕壓(ya)變(bian)送器，低(di)壓(ya)側(ce)始(shi)終保持一(yi)(yi)個參考壓(ya)力(li)。傳(chuan)(chuan)感(gan)(gan)膜(mo)(mo)(mo)片的(de)(de)zui大位(wei)(wei)移(yi)量為0.004英寸（0.1毫米(mi)），且位(wei)(wei)移(yi)量與(yu)壓(ya)力(li)成正(zheng)比。兩(liang)側(ce)的(de)(de)電容極板(ban)檢測(ce)傳(chuan)(chuan)感(gan)(gan)膜(mo)(mo)(mo)片的(de)(de)位(wei)(wei)置。傳(chuan)(chuan)感(gan)(gan)膜(mo)(mo)(mo)片和電容極板(ban)之間電容的(de)(de)差值(zhi)被轉換為相應的(de)(de)電流(liu)，電壓(ya)或(huo)數字HART（高速(su)可尋址遠程發(fa)送器數據公...
產品(pin)(pin)特(te)點：◆PC-ZO200系(xi)列(lie)氧(yang)化(hua)鋯(gao)(gao)(gao)(gao)分析儀的核心部件—氧(yang)化(hua)鋯(gao)(gao)(gao)(gao)鋯(gao)(gao)(gao)(gao)頭(tou)(tou)，采(cai)用(yong)配方和先(xian)進的成型工藝(yi)，使得(de)其(qi)測量(liang)準(zhun)確性(xing)和工作壽命等(deng)(deng)性(xing)能指標處于(yu)國內；具(ju)有(you)內阻(zu)小，本底電(dian)勢(shi)好，響應(ying)(ying)速度(du)快等(deng)(deng)優(you)點。◆氧(yang)化(hua)鋯(gao)(gao)(gao)(gao)元(yuan)件采(cai)用(yong)減應(ying)(ying)力設計，其(qi)結構設計合理(li)，極(ji)(ji)大提(ti)高(gao)了(le)(le)元(yuan)件的抗震性(xing)和機械強度(du)；◆氧(yang)化(hua)鋯(gao)(gao)(gao)(gao)電(dian)極(ji)(ji)表面經過工藝(yi)處理(li)，測量(liang)靈敏(min)度(du)和準(zhun)確度(du)有(you)了(le)(le)極(ji)(ji)大的提(ti)高(gao)，靈敏(min)度(du)優(you)于(yu)進口產品(pin)(pin)；◆氧(yang)化(hua)鋯(gao)(gao)(gao)(gao)電(dian)極(ji)(ji)在涂制過程(cheng)中增(zeng)加了(le)(le)特(te)殊的保護層(ceng)，極(ji)(ji)大增(zeng)強了(le)(le)電(dian)極(ji)(ji)的抗腐蝕能力；◆氧(yang)化(hua)鋯(gao)(gao)(gao)(gao)探頭(tou)(tou)采(cai)用(yong)密封技術，具(ju)有(you)防灰堵、防沖刷、反應(ying)(ying)靈敏(min)的特(te)點；◆...
一(yi)、概況：一(yi)體(ti)(ti)化振動(dong)變送器(qi)(qi)是一(yi)種固(gu)定安裝(zhuang)的在線(xian)振動(dong)測量(liang)裝(zhuang)置，主要用于對(dui)振動(dong)速度(du)值的測量(liang)。其輸(shu)出形式為(wei)4mA～20mA標(biao)準電(dian)流，與振動(dong)值的大小成正比。可直接輸(shu)入到PLC/DCS中，從而(er)組成一(yi)個能對(dui)諸如離心泵(beng)、往復式壓縮(suo)機(ji)(ji)、離心機(ji)(ji)、冷(leng)卻(que)塔、工業風機(ji)(ji)、電(dian)動(dong)機(ji)(ji)及燃氣(qi)輪機(ji)(ji)等設(she)(she)備(bei)進(jin)行(xing)監測和(he)保護的系統。本裝(zhuang)置采用了傳感器(qi)(qi)與儀器(qi)(qi)本體(ti)(ti)一(yi)體(ti)(ti)化的設(she)(she)計。SLMCD-21T一(yi)體(ti)(ti)化振動(dong)變送器(qi)(qi)適用場(chang)合(he)能對(dui)諸如離心泵(beng)、往復式壓縮(suo)機(ji)(ji)、離心機(ji)(ji)、冷(leng)卻(que)塔、工業風機(ji)(ji)、電(dian)動(dong)機(ji)(ji)及燃氣(qi)輪機(ji)(ji)等設(she)(she)備(bei)進(jin)行(xing)監測和(he)保護。二．技術(shu)參(can)數(shu)...
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