GFC-8131H数字频率计数器的特点
． 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
GFC-8131H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 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 | +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 | |
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