產品概述
液體表面電阻率測試儀主要特點
電阻測量(liang)范(fan)圍寬 1×104Ω ~1×1018Ω
電流測量(liang)范圍為(wei) 2×10-4A ~1×10-16A
體積小、重量(liang)輕(qing)、準確度(du)高
所有(you)測試電(dian)(dian)壓(ya)(10V/50V/100/250/500/1000V) 測試時電(dian)(dian)阻(zu)結果直讀(du),免去老式高阻(zu)計在(zai)不同測試電(dian)(dian)壓(ya)下或不同量程時要乘(cheng)以系數(shu)等使用(yong)不便的麻(ma)煩,使測量超高電(dian)(dian)阻(zu)就(jiu)如用(yong)萬用(yong)表測量普通(tong)電(dian)(dian)阻(zu)樣簡便。
既能(neng)測超高電(dian)(dian)阻又能(neng)測微電(dian)(dian)流
技術指標
1、電阻測(ce)量范(fan)圍:1×104Ω ~1×1018Ω。
2、電流測量(liang)范圍(wei)為:2×10-4A~1×10-16A
3、顯 示 方 式:32位(wei)LED液(ye)晶屏顯示
4、內置測試(shi)電(dian)壓:10V、50V、100V、250、500、1000V
5、基本準確度(du):1% (*注)
6、使用環境(jing): 溫度:0℃~40℃,相對濕度<80%
7、機(ji)內測(ce)試電(dian)壓:10V/50V/100/250/500/1000V任(ren)意切換
8、供電形式:AC 220V,50HZ,功耗約5W
9、儀器(qi)尺(chi)寸:285mm×245mm×120 mm
10、質量: 約2.5KG
工作原理
根據歐姆定律,被測(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)Rx等于(yu)施(shi)加電(dian)(dian)(dian)(dian)(dian)壓(ya)V除以通過的(de)電(dian)(dian)(dian)(dian)(dian)流I。傳(chuan)統的(de)高阻(zu)(zu)(zu)計的(de)工作原理是測(ce)(ce)(ce)(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)壓(ya)V固(gu)定,通過測(ce)(ce)(ce)(ce)量(liang)流過取樣電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)的(de)電(dian)(dian)(dian)(dian)(dian)流I來得到電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)。從歐姆定律可以看出(chu),由于(yu)電(dian)(dian)(dian)(dian)(dian)流I是與電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)成反比,而不是成正比,所(suo)(suo)以電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)的(de)顯示值(zhi)是非線性的(de),即(ji)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)無(wu)窮(qiong)大(da)時(shi),電(dian)(dian)(dian)(dian)(dian)流為零(ling),即(ji)表頭的(de)零(ling)位處是,其附近的(de)刻度(du)非常密,分辨率很低。整個(ge)刻度(du)是非線性的(de)。又由于(yu)測(ce)(ce)(ce)(ce)量(liang)不同的(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi),其電(dian)(dian)(dian)(dian)(dian)壓(ya)V也會有些(xie)變化,所(suo)(suo)以普通的(de)高阻(zu)(zu)(zu)計是精度(du)差(cha)、分辨率低。
本(ben)儀器是(shi)(shi)同(tong)時測(ce)(ce)出電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)兩端的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)V和流(liu)(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)I,通過(guo)(guo)內部(bu)的(de)(de)(de)大規(gui)模集成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)路完成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)除以(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)計(ji)算,然后把(ba)所(suo)得(de)到(dao)(dao)的(de)(de)(de)結(jie)果(guo)經過(guo)(guo)A/D轉換后以(yi)(yi)數字顯(xian)示出電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi),即(ji)便是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)兩端的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)V和流(liu)(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)I是(shi)(shi)同(tong)時變(bian)(bian)化,其顯(xian)示的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi)不象普通高(gao)(gao)阻(zu)計(ji)那(nei)樣因被測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)V的(de)(de)(de)變(bian)(bian)化或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)I的(de)(de)(de)變(bian)(bian)化而(er)變(bian)(bian),所(suo)以(yi)(yi),即(ji)使(shi)測(ce)(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)、被測(ce)(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)等發生變(bian)(bian)化對其結(jie)果(guo)影響(xiang)不大,其測(ce)(ce)量(liang)精度很高(gao)(gao),從(cong)理論上講其誤差(cha)可以(yi)(yi)做到(dao)(dao)零(ling),而(er)實際誤差(cha)可以(yi)(yi)做到(dao)(dao)千分之(zhi)幾(ji)或(huo)萬分之(zhi)幾(ji)。
液體表面電阻率測試儀
操作方式:
1、電流先手動調零
2、調整測試電壓
3、旋轉電阻波蕩(dang)觀(guan)察數值
4、讀取電阻值
5、根據電阻值按以下(xia)公式(shi)求出
售后服務承諾
質量保(bao)證:北京北廣精(jing)儀儀器設備有限公司作為設備供(gong)(gong)應商,對(dui)所提供(gong)(gong)的產品均為廠家原廠原包裝,符合國家標準,并提供(gong)(gong)產品技術(shu)資料(包含安裝說明(ming)書(shu),產品裝箱目錄、產品中文使用(yong)說明(ming)書(shu)、合格證及保(bao)修憑證等(deng))。
產(chan)品交(jiao)貨期:盡量按(an)用(yong)戶要求(qiu),若有特殊要求(qiu),需提前完工(gong)的,我公司可特別組織(zhi)生產(chan)、安裝,力爭滿(man)足用(yong)戶需求(qiu)。
保修承諾:我司對本次協議供貨有(you)(you)(you)效(xiao)期(qi)內所(suo)提供的(de)所(suo)有(you)(you)(you)產(chan)品保質期(qi) ,有(you)(you)(you)效(xiao)期(qi)內所(suo)提供的(de)產(chan)品,提供正常工作日全天侯服(fu)(fu)務(wu),終身技術服(fu)(fu)務(wu)支持(chi)。
響應時間:保修期(qi)內,產品若發生故障,在(zai)接到貴公司報修后,24小時內幫客戶解(jie)決問題。
服務(wu)體系:作為設備供(gong)應商(shang)本公司對本次招標所提供(gong)的(de)產品提供(gong)保障(zhang)體系: 當設備出現(xian)故障(zhang),必要(yao)時將派的(de)專業技術員在規定時間內上門維修或寄修,產生的(de)運(yun)費由(you)本公司承(cheng)擔(dan)。
- 上(shang)一個: WYZ-240玻璃鋼萬能制樣機
- 下一個: BQS-40過濾器自動完整性測試儀