We offer a high-performance hydrogen maser with built-in frequency comparator. Extremely frequency stability is provided by state-of-the-art technology. Ideal for high-accuracy measurement applications, particularly, in metrology.
Key applications
– National Time Keeping Service;
– Deep space tracking and navigation;
– VLBI systems;
– Scientific researches.
Output signals:
– Sine: 5 MHz; 10 MHz; 100 MHz; (1±0.2) V RMS into 50 Ω load;
– Pulse: 1 Hz (pps), positive polarity, amplitude: >2.5 V into 50 Ω load;
– width: 15±5 µs; rise time:<10 ns.
Metrological characteristics are given in the table:
| Relative frequency accuracy | ±3×10−13 (factory calibration) |
|
| Output signals frequency corrector | resolution returning range |
1×10−15 1×10−10 |
| Frequency stability (Allan deviation at (25±1)°C, environmental effects are excluded) |
1 s | ≤2.0×10−13 |
| 10 s | ≤2.0×10−14 | |
| 100 s | ≤7.0×10−15 | |
| 1000 s | ≤3.0×10−15 | |
| 1 hour | ≤1.5×10−15 | |
| 1 day | ≤2.0×10−15 | |
| Long term frequency stability | <1.0×10-15/day Achieved in cavity autotuning mode together with another identical maser. |
|
| Phase noise spectral density (dBc/Hz) (5 MHz output) |
Frequency offset | Spectral density |
| 1 Hz | ≤−118 | |
| 10 Hz | ≤−135 | |
| 100 Hz | ≤−149 | |
| 1000 Hz | ≤−156 | |
| Manual synchronization to external 1 pps TTL signal accuracy |
≤±50 ns | |
| Temperature sensitivity in operating temperature range (+10÷+35) °C |
≤±3×10−15 1/°C | |
| Magnetic sensitivity | ≤±1×10−14 1/Oersted | |
Full data monitoring and functions control (local or remote through any network) performs by personal computer.
Software running under Microsoft Windows 2000, XP, Vista 7 is applied.
Power: 220 V, 50 Hz AC; or (22÷30) V DC.
Power consumption: 150 VA AC, 100 W DC.
Dimensions (W×H×D): 550×990×550 mm.
Weight: 95 kg.
Warranty: 3 years.
Live time:15 years.
Ready to learn more? Contact us to find the right configuration for your Active Hydrogen Maser needs.