数位型数字频率计数器,主要规格:0.01Hz~2.7GHz 详细说明:特点 提供频率、周期量测.微电脑控制.高频与低频,均具高解析度.频率范围:0.01Hz~2.7GHz.高感度:10mVrms.1Hz档解析度:100nHz.自我侦测诊断.可调式触发准位控制.显示锁定功能 规格显示 8位数withHz,kHz,MHz,GHz,S,mS, S,nSandoverflowGateTime Continuouslyvaryfrom10mSto10S,or1periodofinputdependingonwhicheverisgreater准度 +(解析度+时基误差)频道A范围DC耦合0.01Hz~120MHz;AC耦合30Hz~120MHz感度10mVrmstypical;50mVrmsmax耦合AC或DC,switchable滤波器Lowpass,switchableinoroutforchannelA.-3dBpointofnominally100kHz阻抗1M //40pF衰减器x20dB触发准位调整-2.5VDCto+2.5VDC解析度Themaximumresolutionforfrequencymeasurementis100nHzfor1Hzand0.1Hzfor100MHzinputrespectively,andforperiodmeasurementis10nSfor1Hzand0.1fS(f=10-15)for100MHzinputrespectively.Atleast7,6,5digitsaredisplayfor1S,100mS,10mSgatetimerespectivelyPeriodRange8nSto100Satleast7digitsdisplayedforpersecondofgatetime频道B范围50MHzto2.7GHz感度 50mVrms(10mVrmstypical)耦合AConly时基AgingRate1ppm,perMonth温度5ppm23 C+5 C电源变化+0.005ppmfor+10%变化使用电源 交流100V/120V/220V/240V 10%,50/60Hz附件 操作手册 1,电源线 1,测试线 2尺寸及重量 230(宽) 95(高) 280(长)mm约2.2公斤