固纬GFC-8131H频率计特点:．提供频率与周期量测 ．在高频与低频，均具高解析度 ．频率范围：0.01Hz ~ 1.3GHz ． 高感度：10mVrms ．1Hz 档解析度：100nHz ．可调式触发准位控制 ． 显示锁定功能 固纬GFC-8131H频率计技术参数:显示8 位数 with Hz kHz MHz GHz S mS μS nS and overflowGate TimeContinuously vary from 10mS to 10S or 1 period of input depending on whichever is greater准确度+(Resolution +Timebase error)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 or 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 100MHz input respectively and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively.At least 765 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 1.3GHz感度<40mVrms (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 AC 100V/120V/220V/240V ±10% 50/60Hz附件 操作手册 × 1 电源线 × 1 测试线 GTL-110× 2尺寸及重量 230(宽) × 95(高) × 280(长) mm约 2.2 公斤