AWA14423型測試電容傳聲器愛華AWA84103型通用振動(dòng)加速度計(jì)（側(cè)端）代理商
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概述：采用數(shù)字真有效值檢波專利技術(shù)的數(shù)顯聲頻傳聲器放大器，包含A、C和Z頻率計(jì)權(quán)特性，符合GB3785.1標(biāo)準(zhǔn)對(duì)1級(jí)聲級(jí)計(jì)的要求。測量頻率范圍可延伸到40 kHz或80 kHz。通過前面板LEMO 7芯插座，可連接到傳聲器前置放大器和1/2英寸或1英寸測試電容傳聲器，組成1級(jí)聲級(jí)計(jì)用于聲學(xué)測量。還有直接輸入插孔，可連接到加速度計(jì)前置放大器，也可用作一般高靈敏度聲頻電子電壓表，測量真有效值（RMS）電壓。是一種用途廣泛的實(shí)驗(yàn)室用聲學(xué)、振動(dòng)、電壓測量儀器，可以代替進(jìn)口測量放大器作為聲學(xué)計(jì)量使用。
特點(diǎn)：
1：動(dòng)態(tài)范圍大（110 dB），測量時(shí)不需更換量程；
2：精度高，穩(wěn)定性好，數(shù)字顯示電壓5位數(shù)，聲壓級(jí)讀數(shù)至0.01 dB，不需另加數(shù)字電壓表提高讀數(shù)精度；
3：可以將某一測量值設(shè)置為參考0 dB，直接讀出其它測量值與它相比的增益或衰減dB數(shù)；
主要性能指標(biāo)
執(zhí)行標(biāo)準(zhǔn)：IEC 61672：2002 Class 1，GB/T 3785-2010 1級(jí)
頻率計(jì)權(quán)：A，C，Z
時(shí)間計(jì)權(quán)：16ms、F、S、8秒
量程：316mV，1V，3.16V，10V
窗函數(shù)（選配功能）：矩形窗、漢寧窗、平頂窗、布萊克曼窗
參考量程：10V
參考量程級(jí)線性范圍：110dB
電壓測量范圍：15μV到10V
信號(hào)輸入：直接輸入（BNC插座），前置輸入（LEMO 7芯插座），
ICP前置輸入（BNC插座）
信號(hào)輸入阻抗：1MΩ
輸入保護(hù)：±18V
恒流源供電：18V、2mA
信號(hào)輸出：交流輸出（BNC插座），直流輸出（BNC插座），RS-232C（DB9M插座）
內(nèi)部參考信號(hào)：1kHz,50mV，失真小于1%。
內(nèi)部電池：免維護(hù)鉛酸充電電池，插入外接電源即開始充電。充滿電后可連續(xù)使用20小時(shí)以上。
外接電源：220V或110V，50Hz或60Hz
功耗：小于10W。
工作溫度：0℃～40℃
相對(duì)濕度： 20%～90%
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