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padding:0px; width:660px"><tbody><tr><td><span style="font-size:13px">性能特點(diǎn)(ZC5991)</span></td><td><span style="font-size:13px">　　　ZC5991型揚(yáng)聲器/話筒極性測(cè)試儀技術(shù)指標(biāo)</span></td></tr><tr><td><ul><li><span style="font-size:13px">采用脈沖測(cè)試，三種脈沖幅度選擇</span></li><li><span style="font-size:13px">極性聲、光指標(biāo)，可選擇正、負(fù)報(bào)警極性</span></li><li><span style="font-size:13px">可外接試音信號(hào)，在極性測(cè)試同時(shí)進(jìn)行純音檢聽</span></li><li><span style="font-size:13px">極性測(cè)試快速準(zhǔn)確</span></li></ul></td><td rowspan="2"><table align="right" border="1" cellpadding="2" cellspacing="1" style="border-collapse:collapse; border-spacing:0px; margin:0px; padding:0px; width:295.714px"><tbody><tr><td><span style="font-size:13px">型號(hào)</span></td><td><span style="font-size:13px">ZC5991</span></td></tr><tr><td><span style="font-size:13px">測(cè)試速度</span></td><td><span style="font-size:13px">約0.2秒/次</span></td></tr><tr><td><span style="font-size:13px">zui大靈敏度</span></td><td><span style="font-size:13px">≤25cm傳感話筒距被測(cè)件距離</span></td></tr><tr><td><span style="font-size:13px">功能選擇</span></td><td><span style="font-size:13px">本地極性測(cè)試、輸出外部試音信號(hào)、遠(yuǎn)程控制</span></td></tr><tr><td><span style="font-size:13px">結(jié)果判別</span></td><td><span style="font-size:13px">正、反極性LED指示</span></td></tr><tr><td><span style="font-size:13px">結(jié)果報(bào)警</span></td><td><span style="font-size:13px">可選擇在正或負(fù)極性報(bào)警或關(guān)閉</span></td></tr><tr><td colspan="2"><span style="font-size:13px">測(cè) 量信號(hào)</span></td></tr><tr><td><span style="font-size:13px">脈沖寬度</span></td><td><span style="font-size:13px">約0.4ms</span></td></tr><tr><td><span style="font-size:13px">測(cè)量脈沖幅度</span></td><td><span style="font-size:13px">≥10Vp-p(輻射為高時(shí)）高、中、低三檔幅度<br />選擇</span></td></tr></tbody></table></td></tr><tr><td><span style="font-size:13px"><img alt="" src="http://www.zctek.com.cn/ckfinder/userfiles/images/2015051410522922.jpg" style="height:256px; margin:0px; width:300px" 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