台湾固纬GFC-8270H数字频率计数器的商品描述：GFC-8270H数字频率计数器的特点1.     提供频率、周期量测2.     微电脑控制3.     在高频与低频，均具高解析度4.     频率范围：0.01Hz ~ 2.7GHz5.     高感度：10mVrms6.     1Hz档解析度：100nHz7.     自我侦测诊断8.     可调式触发准位控制9.     显示锁定功能GFC-8270H数字频率计数器的技术参数：显示 8位数with Hz, kHz, MHz, GHz, S, mS,μS, nS and overflowGate Time Continuously vary from 10mS to 10S, or 1 period of input depending on whichever is greater准确度 +(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10mVrms typical；50mVrms max耦合AC或DC, switchable滤波器Low pass, switchable in or out for channel A.-3dB point of nominally 100kHz阻抗1MΩ//40pF衰减器x 20dB触发准位调整-2.5 VDC to +2.5 VDC解析度The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHzinput respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively.At least 7,6,5 digits are display for 1S, 100mS, 10mS gate time respectivelyPeriod Range8nS to 100S at least 7 digits displayed for per second of gate time频道B范围50MHz to 2.7GHz感度<50mVrms (10mVrms typical)耦合AC only时基Aging Rate1 ppm, per Month温度5 ppm 23°C+5°C电源变化+0.005 ppm for+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 GFC-8270H数字频率计数器的仪器型号：GFC-8270HGFC-8270H数字频率计数器的生产厂家：台湾固纬GFC-8270H数字频率计数器的订货代码：GFC-8270H