服務熱線
原理(li)是(shi)基于射頻(pin)(RF)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)技術。將一(yi)個無線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)頻(pin)率(lv)(lv)施加(jia)在探(tan)(tan)頭(tou)上,通(tong)過連(lian)續的(de)(de)(de)(de)(de)(de)(de)(de)(de)分析(xi),確定由周(zhou)圍環(huan)境造成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響(xiang)。因所(suo)(suo)有材料(liao)(liao)均(jun)具有介(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)常(chang)(chang)數,而且(qie)其導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)率(lv)(lv)都不同(tong)于空(kong)氣(qi),當探(tan)(tan)頭(tou)與材料(liao)(liao)接觸時(shi)由于微小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)量(liang)偏移所(suo)(suo)反(fan)映的(de)(de)(de)(de)(de)(de)(de)(de)(de)總阻(zu)抗發(fa)生變化(hua)。因為通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)探(tan)(tan)頭(tou)和容(rong)(rong)器壁構(gou)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器的(de)(de)(de)(de)(de)(de)(de)(de)(de)二塊極板,探(tan)(tan)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)絕緣(yuan)體(ti)和周(zhou)圍空(kong)氣(qi)成(cheng)(cheng)為介(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)材料(liao)(liao),當空(kong)氣(qi)(其介(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)常(chang)(chang)數為1．o)被(bei)任何(he)其它材料(liao)(liao)價電(dian)(dian)(dian)(dian)(dian)(dian)(dian)常(chang)(chang)數,>1)置(zhi)換時(shi),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)效應得以加(jia)強(qiang)。從(cong)而改變了(le)應用場合的(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)抗。即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)值的(de)(de)(de)(de)(de)(de)(de)(de)(de)變化(hua)造成(cheng)(cheng)了(le)阻(zu)抗的(de)(de)(de)(de)(de)(de)(de)(de)(de)變化(hua)。這一(yi)影(ying)響(xiang)被(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)測量(liang)后,再與由靈敏(min)度設置(zhi)(電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu))建立的(de)(de)(de)(de)(de)(de)(de)(de)(de)參考基準相比較。靈敏(min)度正確設置(zhi)會影(ying)響(xiang)傳(chuan)感器輸出正確變化(hua)。探(tan)(tan)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)抗粘附(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)可(ke)以使測量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)對探(tan)(tan)頭(tou)上堆積(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)物(wu)料(liao)(liao)忽(hu)略(lve)不計的(de)(de)(de)(de)(de)(de)(de)(de)(de)無線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)頻(pin)率(lv)(lv)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位激勵。由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)不能在相同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位下流(liu)動,抗粘附(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)就隔斷了(le)通(tong)常(chang)(chang)從(cong)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)探(tan)(tan)頭(tou)經過堆積(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)物(wu)料(liao)(liao)到容(rong)(rong)器壁的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)流(liu)動。這樣測量(liang)到的(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)探(tan)(tan)頭(tou)周(zhou)圍的(de)(de)(de)(de)(de)(de)(de)(de)(de)物(wu)料(liao)(liao),而不是(shi)粘附(fu)堆積(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)物(wu)料(liao)(liao)。
KRSD500射頻導納料位計是在美(mei)國普林柯(ke)公司射頻導納物位控制器(qi)的基礎上(shang),研究和(he)開發的產(chan)品。
KRSD500射(she)頻導納料位計運用美國普林(lin)柯(ke)抗粘附(fu)線(xian)路設計,可以探測真實(shi)物(wu)位的(de)同時,消除粘附(fu)和(he)懸掛在(zai)探頭(tou)周圍(wei)的(de)假物(wu)位信號(hao)影響。我(wo)們還自主(zhu)采用國外先進的(de)設計和(he)生產(chan)技術(shu),使電子線(xian)路參數更加穩(wen)定、可靠,使用壽(shou)命更加長久(jiu)。
KRSD500射頻(pin)導(dao)納(na)料位計(ji)的(de)(de)探頭(tou)部分(fen)通過一系列的(de)(de)市場調研,研究采用了(le)探頭(tou)直徑達到10mm,保護套長150mm,總(zong)長450mm,使探頭(tou)更(geng)堅固、更(geng)實用、更(geng)可靠。同時(shi),自主開發L890平板探頭(tou)、解決了(le)大(da)固體塊(kuai)料沖(chong)擊(ji)探棒的(de)(de)問題,并(bing)且,也(ye)生產L863WC鋼纜探頭(tou)和L864C陶瓷高溫探頭(tou),使MLSD500的(de)(de)使用對象從液(ye)體、粉料擴(kuo)展到高溫、大(da)固體塊(kuai)料。
KRSD500射頻導納(na)料位計(ji)的特點
通(tong)用性強：應用于各種場合,飛灰,顆粒、粉體(ti)、液體(ti)、粘(zhan)稠(chou)、導電和非(fei)導電物料。
抗粘(zhan)(zhan)電(dian)(dian)路：采(cai)用抗粘(zhan)(zhan)附電(dian)(dian)子(zi)線路可以消(xiao)除物料粘(zhan)(zhan)附而(er)產(chan)生的虛假信(xin)號。
探頭可(ke)(ke)拆(chai)式：探頭與控制器可(ke)(ke)分離,鍍金觸針連(lian)接,安裝拆(chai)除不影響進出(chu)料。
探(tan)頭(tou)耐高(gao)(gao)低溫：探(tan)頭(tou)適合-80℃至l80℃的工作環境,還提供棒(bang)式(shi)；平板式(shi)陶瓷(ci)高(gao)(gao)溫探(tan)頭(tou)（耐溫800度(du)）。
輸出(chu)容量(liang)大：采用容量(liang)為2A,220Vac的繼電器觸點輸出(chu),并有狀態燈顯示工作狀態．0-30秒延時功能。
貼(tie)片技術(shu)：使電(dian)子線路抗振性更(geng)強,電(dian)路參數更(geng)穩定和可靠。
KRSD500射(she)頻導(dao)納料(liao)位計的技術參數
繼電器容量：DPDT，額定2A，220Vac或1.5A，28VDC
延時：0-30秒(miao)連續(xu)可調
電源(yuan)：220Vac或(huo)24V/dc
功率：3W
感(gan)應度：0．3pF-800pF
物料溫度：-80℃至180℃（大(da)于180℃可用高(gao)溫探頭）最大(da)可以(yi)做到1000°C
電路耐溫：-40℃至66℃
失電保護(hu)：高低模式(shi)，現場可調
外殼(ke)：IP65，重型鑄鋁外殼(ke)
探頭參數
安(an)裝螺(luo)紋：l＂NPT
探(tan)頭(tou)材料：不銹鋼、Teflon
接液介質：不銹鋼
電氣(qi)接口：PGll或3／4＂NPT
