产品名称：频率计8131 
产品型号：GFC-8131H
产品简介：
数位型数字频率计数器 , 主要规格:0.01Hz ~ 1.3GHz
． 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
| 基本参数： |
| 显示 | | | 8 位数 with Hz, kHz, MHz, GHz, S, mS, μS, nS and overflow | | Gate Time | | | Continuously 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 7,6,5 digits are display for 1S, 100mS, 10mS gate time respectively | | Period Range | 8nS 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 Rate | 1 ppm, per Month | | 温度 | 5 ppm 23°C±5°C | | 电源变化 | ±.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 | |
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