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交流毫伏表|TC-2172A|

簡介：電(dian)子(zi)電(dian)壓(ya)(ya)表(biao)（又(you)稱(cheng)交流(liu)毫伏表(biao)）一(yi)(yi)般(ban)是指(zhi)(zhi)(zhi)模擬式(shi)(shi)電(dian)壓(ya)(ya)表(biao)。它(ta)是一(yi)(yi)種電(dian)子(zi)電(dian)路中常(chang)用的(de)測(ce)(ce)量(liang)儀表(biao)，采用磁(ci)電(dian)式(shi)(shi)表(biao)頭作為指(zhi)(zhi)(zhi)示器(qi)(qi)，屬于指(zhi)(zhi)(zhi)針式(shi)(shi)儀表(biao)。電(dian)子(zi)電(dian)壓(ya)(ya)表(biao)，不僅可以(yi)測(ce)(ce)量(liang)交流(liu)電(dian)壓(ya)(ya)，而且還可以(yi)用作為一(yi)(yi)個寬頻帶、低(di)噪聲、高增(zeng)益的(de)放大器(qi)(qi)。一(yi)(yi)般(ban)電(dian)子(zi)電(dian)壓(ya)(ya)表(biao)都由放大和檢波(bo)兩(liang)大部分組成(cheng)。它(ta)們主要由衰(shuai)減器(qi)(qi)、交流(liu)電(dian)壓(ya)(ya)放大器(qi)(qi)、檢波(bo)器(qi)(qi)和整流(liu)電(dian)源四(si)部分組成(cheng)。 

電(dian)子電(dian)壓表(biao)主要用于測量各(ge)種高、低頻信號電(dian)壓，它是電(dian)子測量中(zhong)使(shi)用*泛的儀器之一。

性能特點:采用(yong)智能化集成電路,超寬的交流測量范圍(wei)和(he)超寬的頻率(lv)響應.

智(zhi)能復零具有輸入保護(hu)功能.

智能數碼量程(cheng)開(kai)關  手感輕  壽命長  可360度旋轉(zhuan),杜(du)絕了量程(cheng)開(kai)關的錯位打滑現(xian)象(xiang).

技術參(can)數(shu):測量電壓范圍:30uV-100V

測量電壓的頻率范圍:5Hz-2MHz

            輸入電(dian)阻:2MΩ

測量電壓的固有誤差:±3%

如有非標(biao)等特殊要求(qiu),可來電函提出(chu),可滿足!

輸入電容:20PF

外型尺寸:140×166×240mm

工作原理：

電(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)表(biao)(biao)頭指針的偏轉角正(zheng)(zheng)比于被測電(dian)(dian)(dian)(dian)壓(ya)(ya)的平均(jun)值(zhi)(zhi)，而面板卻是按正(zheng)(zheng)弦交(jiao)流(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)有效值(zhi)(zhi)進行刻度(du)的，因此(ci)電(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)只能(neng)用以(yi)測量正(zheng)(zheng)弦交(jiao)流(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)的有效值(zhi)(zhi)。當測量非正(zheng)(zheng)弦交(jiao)流(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)時，電(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)的讀(du)數沒有直接的意義，只有把該(gai)讀(du)數除以(yi)1.11（正(zheng)(zheng)弦交(jiao)流(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)的波(bo)形系(xi)數），才能(neng)得(de)到被測電(dian)(dian)(dian)(dian)壓(ya)(ya)的平均(jun)值(zhi)(zhi)。

交流毫伏表|TC-2172A|