AWA14423型測試電容傳聲器愛華AWA84103型通用振動加速度計(側端)代理商

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概述:采用(yòng)數字(zì)真有效值檢波專利(lì)技術的數顯聲頻傳聲器放大(dà)器,包含A、C和Z頻率計權特性,符合GB3785.1標準對(duì)1級聲級計的要求。測量頻率範(fàn)圍可延(yán)伸(shēn)到40 kHz或(huò)80 kHz。通過前麵板LEMO 7芯插座,可連接到傳聲器前(qián)置放大(dà)器和1/2英寸或1英寸測試電容傳聲器,組成(chéng)1級聲級計用於聲學測量。還有直接輸入插(chā)孔,可連接到加速度計前置放大器,也可用作一般高(gāo)靈(líng)敏(mǐn)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驗室用聲學(xué)、振動、電壓測量儀器,可以代替(tì)進口測量放大器作為聲學計(jì)量使用。
特點:
1:動態範圍大(110 dB),測量時不需更換量程;
2:精度高,穩定(dìng)性好,數字顯示電壓5位數,聲壓級讀(dú)數至0.01 dB,不需另加數字電(diàn)壓表提高讀數精度;
3:可以將某一(yī)測量(liàng)值設置為參考0 dB,直接讀出其它測量值(zhí)與它相比的增益或衰減dB數;
主(zhǔ)要性能指標
執行標準:IEC 61672:2002 Class 1,GB/T 3785-2010 1級
頻率計權:A,C,Z
時間計(jì)權:16ms、F、S、8秒
量程:316mV,1V,3.16V,10V
窗函數(選配功能):矩形窗、漢(hàn)寧窗、平頂窗、布萊(lái)克曼窗
參考量程:10V
參考量程級線性範圍:110dB
電(diàn)壓測量範圍:15μV到10V
信號輸入:直(zhí)接輸入(BNC插(chā)座),前置輸入(LEMO 7芯插座),
ICP前置輸入(BNC插座)
信號輸(shū)入阻抗:1MΩ
輸入保護:±18V
恒流源供電:18V、2mA
信號輸出:交流輸出(BNC插座),直流輸出(BNC插(chā)座(zuò)),RS-232C(DB9M插座)
內部參考信號:1kHz,50mV,失真小於1%。
內部電池:免維(wéi)護鉛酸充電電池,插(chā)入外接電源即開始充電(diàn)。充滿電後可連續使用20小時以(yǐ)上。
外接電源:220V或(huò)110V,50Hz或60Hz
功(gōng)耗:小於10W。
工作溫度:0℃~40℃
相對濕度: 20%~90%
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