智慧型数字频率计数器

特点：

·提供频率、周期量测

·微电脑控制

·在高频与低频，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 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 (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1MW//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 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