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產品名稱:
優利德數字萬用表
廠商性(xing)質: 生產廠家產品(pin)時間: 2024-05-07優利(li)德(de)數(shu)字萬用表(biao)(biao),是款性(xing)能(neng)*、穩定和可靠(kao)的手持式4 1/2 位數(shu)字多用表(biao)(biao),整機電(dian)(dian)(dian)(dian)路(lu)設計以(yi)CMOS工藝制成的雙(shuang)積分A/D轉換(huan)器為核心并配以(yi)全功能(neng)過載保護,可用來測(ce)量直流電(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)流、交流電(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)流、電(dian)(dian)(dian)(dian)阻、電(dian)(dian)(dian)(dian)容、二極(ji)管、三極(ji)管、頻率以(yi)及(ji)電(dian)(dian)(dian)(dian)路(lu)通(tong)斷。
產品介紹
品牌 | 其他品牌 | 應用領域 | 醫療衛生,化工,地礦,交通 |
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產品簡介:
優利德數字萬用表,是款性能*、穩定和可靠的手持式4 1/2 位數字多用表,整機電路設計以CMOS工藝制成的雙積分A/D轉換器為核心并配以全功能過載保護,可用來測量直流電壓和電流、交流電壓和電流、電阻、電容、二極管、三極管、頻率以及電路通斷。
優利德數字萬用表技術指標:
基本功能 | 量程 | 分辨力 | 準確(que)度 | 輸入保護 |
直流電壓DCV | 200mV | 0.01mV | ±(0.05%+3) | 250V AC |
2V/20V/200V | 0.1mV/1mV/10mV | ±(0.1%+3) | 750VAC 1000VDC | |
1000V | 100mV | ±(0.15%+5) | ||
交流電壓ACV | 2V | 0.1mV | ±(0.5%+10) | 750VAC 1000VDC 頻響(xiang):40Hz~400Hz |
20V/200V | 1mV/10mV | ±(0.6%+10) | ||
750V | 100mV | ±(0.8%+15) | ||
直流(liu)電流(liu) DCA | 2mA/20mA | 0.1μA/1μA | ±(0.5%+5) | 200mA/250V |
200mA | 10μA | ±(0.8%+5) | ||
20A | 1mA | ±(2%+10) | 無(wu)保(bao)險絲 | |
交流(liu)電流(liu)ACA | 2mA/20mA | 0.1μA/1μA | ±(0.8%+10) | 200mA/250V 頻響:40Hz~400Hz |
200mA | 10uA | ±(1.2%+10) | ||
20A | 1mA | ±(2.5%+10) | 無保(bao)險(xian)絲(si) | |
電阻Ω | 200Ω | 0.1Ω | ±(0.5%+10) | 250V AC |
2kΩ | 1Ω | ±(0.3%+3) | ||
20kΩ/200kΩ/2MΩ | 10Ω/100Ω/1kΩ | ±(0.3%+1) | ||
20MΩ | 10kΩ | ±(0.5%+1) | ||
電容 | 20nF/200nF/2μF /20μF | 1pF/10pF/100pF /1nF | ±(4%+20) | 250V AC |
頻率 | 20kHz | 1Hz | ±(1.5%+5) | 250V AC |
hFE | 1000β | 1β , Vce≈3V/Ibo≈10μA | 250V AC |
工作(zuo)原(yuan)理:
萬(wan)用表測量電(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)流(liu)和(he)電(dian)(dian)(dian)(dian)阻(zu)功能(neng)是(shi)通過轉換(huan)電(dian)(dian)(dian)(dian)路(lu)部分實現的(de),而(er)電(dian)(dian)(dian)(dian)流(liu)、電(dian)(dian)(dian)(dian)阻(zu)的(de)測量都(dou)是(shi)基于電(dian)(dian)(dian)(dian)壓(ya)的(de)測量,也(ye)就(jiu)是(shi)說數(shu)(shu)字(zi)(zi)萬(wan)用表是(shi)在(zai)數(shu)(shu)字(zi)(zi)直(zhi)流(liu)電(dian)(dian)(dian)(dian)壓(ya)表的(de)基礎(chu)上擴展而(er)成的(de)。轉換(huan)器將隨時間(jian)連續變化(hua)的(de)模擬電(dian)(dian)(dian)(dian)壓(ya)量變換(huan)成數(shu)(shu)字(zi)(zi)量,再(zai)由(you)電(dian)(dian)(dian)(dian)子(zi)計(ji)數(shu)(shu)器對(dui)數(shu)(shu)字(zi)(zi)量進行計(ji)數(shu)(shu)得(de)到測量結(jie)果,再(zai)由(you)譯碼顯示電(dian)(dian)(dian)(dian)路(lu)將測量結(jie)果顯示出來。邏輯控制電(dian)(dian)(dian)(dian)路(lu)控制電(dian)(dian)(dian)(dian)路(lu)的(de)協調工作(zuo),在(zai)時鐘的(de)作(zuo)用下(xia)按順序完成整(zheng)個測量過程。
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