在線型超聲波液位計

產品特點
多脈(mo)沖低電(dian)壓(ya)多點發(fa)射發(fa)射電(dian)路(lu)，雙平衡抑制噪聲多點接收電(dian)路(lu)：提高儀器可靠性(xing)，解決不物位不平整測量(liang)不準確的難題，并(bing)大大加強抗干(gan)擾力，可在變電(dian)站(zhan)發(fa)射塔附(fu)近(jin)穩定工作

自動功率(lv)調整、增益控制(zhi)、溫度補償。

先進的(de)檢測技術，豐富的(de)軟件功能(neng)適(shi)應各(ge)種復(fu)雜環境(jing)。

采用新型的波形計算技術，提高(gao)儀表(biao)的測量精度(du)。

具有干(gan)擾回波的(de)(de)抑止功(gong)能保證測量數據的(de)(de)真實。

16位(wei)D/A轉換，提高電(dian)流輸出的精度和分辨率。

傳感器(qi)采用四氟乙烯(xi)材料，可用于(yu)各種腐蝕性場(chang)合。

多種輸(shu)出形式：可編程繼電(dian)器(qi)輸(shu)出、高(gao)精度4-20mA電(dian)流輸(shu)出、Rs-485數字通信輸(shu)出 分體超聲波液(ye)位 探頭

在線型超聲波液位計

超聲(sheng)波(bo)液(ye)位計是測(ce)量液(ye)體(ti)(ti)高(gao)度(du)、罐體(ti)(ti)高(gao)度(du)、物料(liao)位置的監測(ce)儀表。儀表本身可采(cai)用(yong)(yong)(yong)二線(xian)(xian)制、三(san)線(xian)(xian)制或(huo)四(si)線(xian)(xian)制技術，二線(xian)(xian)制為(wei)：供(gong)(gong)(gong)電(dian)(dian)與信(xin)號(hao)輸(shu)(shu)(shu)出(chu)共(gong)用(yong)(yong)(yong)；三(san)線(xian)(xian)制為(wei)：供(gong)(gong)(gong)電(dian)(dian)回路(lu)和(he)信(xin)號(hao)輸(shu)(shu)(shu)出(chu)回路(lu)獨(du)立，當采(cai)用(yong)(yong)(yong)直(zhi)流24v供(gong)(gong)(gong)電(dian)(dian)時(shi)，可使用(yong)(yong)(yong)一(yi)根3芯電(dian)(dian)纜(lan)線(xian)(xian)，供(gong)(gong)(gong)電(dian)(dian)負(fu)端和(he)信(xin)號(hao)輸(shu)(shu)(shu)出(chu)負(fu)端共(gong)用(yong)(yong)(yong)一(yi)根芯線(xian)(xian)；四(si)線(xian)(xian)制為(wei)：當采(cai)用(yong)(yong)(yong)交(jiao)流220v供(gong)(gong)(gong)電(dian)(dian)時(shi)，或(huo)者(zhe)當采(cai)用(yong)(yong)(yong)直(zhi)流24v供(gong)(gong)(gong)電(dian)(dian)，要求供(gong)(gong)(gong)電(dian)(dian)回路(lu)與信(xin)號(hao)輸(shu)(shu)(shu)出(chu)回路(lu)隔離時(shi)，應使用(yong)(yong)(yong)一(yi)根4芯電(dian)(dian)纜(lan)線(xian)(xian)。直(zhi)流或(huo)交(jiao)流供(gong)(gong)(gong)電(dian)(dian)，具有4~20mADC，高(gao)低位開(kai)關量輸(shu)(shu)(shu)出(chu)。

工作原理
超(chao)聲(sheng)波(bo)液位計工作原理(li)如圖所(suo)示,超(chao)聲(sheng)波(bo)液位計一般采用收(shou)發(fa)合一的(de)(de)陶瓷(ci)超(chao)聲(sheng)波(bo)換能器,聲(sheng)波(bo)的(de)(de)發(fa)射和接(jie)收(shou)都(dou)由(you)同一個探(tan)頭完成。探(tan)頭向被測液面發(fa)射超(chao)聲(sheng)波(bo)信號(hao),超(chao)聲(sheng)波(bo)由(you)探(tan)頭經傳播介質傳播至被測液面,在液面上形(xing)成反射,反射波(bo)沿(yan)原路徑傳播至探(tan)頭,被探(tan)頭接(jie)收(shou)。