搜索關鍵詞:阻燃信號計算機電纜,焚燒爐(lu)耐磨熱電偶,耐磨切斷式熱電偶
簡要描述:采購超(chao)聲(sheng)(sheng)(sheng)波(bo)液(ye)位(wei)計在測(ce)量(liang)中超(chao)聲(sheng)(sheng)(sheng)波(bo)脈沖由傳感器(qi)(換能器(qi))發出,聲(sheng)(sheng)(sheng)波(bo)經液(ye)體表(biao)面反(fan)射(she)后被同一傳感器(qi)接收或超(chao)聲(sheng)(sheng)(sheng)波(bo)接收器(qi),通(tong)過壓電(dian)晶體或磁(ci)致(zhi)伸縮(suo)器(qi)件轉換成電(dian)信號
采購超聲波液位計
超聲波液位計是由微處理器(qi)控制的(de)數(shu)字(zi)液位儀表(biao)。在測量中超聲波脈沖由傳感(gan)(gan)器(qi)(換(huan)能器(qi))發出,聲波經液體表(biao)面(mian)反(fan)射后被同(tong)一傳感(gan)(gan)器(qi)接(jie)(jie)收(shou)或超聲波接(jie)(jie)收(shou)器(qi),通過(guo)壓電(dian)晶體或磁致(zhi)伸(shen)縮(suo)器(qi)件(jian)轉換(huan)成電(dian)信(xin)號,并(bing)由聲波的(de)發射和接(jie)(jie)收(shou)之間(jian)的(de)時間(jian)來計算(suan)傳感(gan)(gan)器(qi)到被測液體表(biao)面(mian)的(de)距離。
可采(cai)用(yong)(yong)二(er)線(xian)(xian)制(zhi)、三(san)線(xian)(xian)制(zhi)或(huo)四線(xian)(xian)制(zhi)技術,二(er)線(xian)(xian)制(zhi)為(wei)(wei)(wei):供(gong)(gong)電(dian)(dian)與信號輸(shu)出共用(yong)(yong);三(san)線(xian)(xian)制(zhi)為(wei)(wei)(wei):供(gong)(gong)電(dian)(dian)回(hui)路(lu)和(he)(he)信號輸(shu)出回(hui)路(lu)獨立,當采(cai)用(yong)(yong)直流(liu)24v供(gong)(gong)電(dian)(dian)時,可使用(yong)(yong)一(yi)根(gen)3芯(xin)電(dian)(dian)纜線(xian)(xian),供(gong)(gong)電(dian)(dian)負(fu)(fu)端(duan)(duan)和(he)(he)信號輸(shu)出負(fu)(fu)端(duan)(duan)共用(yong)(yong)一(yi)根(gen)芯(xin)線(xian)(xian);四線(xian)(xian)制(zhi)為(wei)(wei)(wei):當采(cai)用(yong)(yong)交流(liu)220v供(gong)(gong)電(dian)(dian)時,或(huo)者(zhe)當采(cai)用(yong)(yong)直流(liu)24v供(gong)(gong)電(dian)(dian),要求供(gong)(gong)電(dian)(dian)回(hui)路(lu)與信號輸(shu)出回(hui)路(lu)*隔離時,應使用(yong)(yong)一(yi)根(gen)4芯(xin)電(dian)(dian)纜線(xian)(xian)。直流(liu)或(huo)交流(liu)供(gong)(gong)電(dian)(dian),具有4~20mADC,高低位(wei)開關量輸(shu)出。
采購超聲波液位計
特點
多脈沖低電(dian)壓(ya)多點發射發射電(dian)路(lu),雙平衡抑制(zhi)噪(zao)聲多點接收電(dian)路(lu):提高儀(yi)器可靠性,解(jie)決不物位不平整(zheng)測量不準確的難題(ti),并大大加強抗(kang)干擾(rao)的能力,可在變電(dian)站發(fa)射塔附(fu)近(jin)穩定工作
自動功(gong)率調整、增益控(kong)制、溫(wen)度(du)補償。
先進的(de)檢測(ce)技術,豐富的(de)軟件(jian)功能(neng)適應各種復雜環(huan)境。
采用新型(xing)的波形計算技術,提高儀(yi)表(biao)的測量精度(du)。
具有干(gan)擾回波的抑(yi)止功(gong)能保證測量數據的真(zhen)實。
16位D/A轉(zhuan)換,提高電流(liu)輸出(chu)的精(jing)度和分辨率。
傳感器采用四氟乙(yi)烯材料,可用于各種腐(fu)蝕性場合。
多種輸(shu)出形(xing)式(shi):可編程繼電(dian)器輸(shu)出、高精(jing)度4-20mA電(dian)流(liu)輸(shu)出、Rs-485數(shu)字通(tong)信輸(shu)出 分體超聲波液(ye)位 探頭
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