The transportable hydrogen quantum clock, developed by VNIIFTRI, is based on a small-sized active hydrogen generator with a storage vessel made of single-crystal leucosapphire.
Small-sized, cost-effective, has high metrological characteristics, can function in harsh operating conditions, transportation by all means of transport in working condition is possible.
DESIGNED FOR
– Time scale comparison of geographically dispersed objects;
– Time scale formation and storage;
– Precision signal formation with frequencies 5 MHz, 10 MHz, 100 MHz.
PURPOSE AND APPLICATION
Measuring the difference of time scales of spatially separated standards of time located at a distance of up to 1000 km with an error of not more than 2 ns;
measuring the frequency of the reference signals of remote standards, as well as determining the instability parameters of their frequencies and spectral characteristics of the signals;
storage of a time scale and a source of reference precision signal at mobile and stationary objects.
SPHERES OF APPLICATION
Metrology, research in the field of time and frequency, telecommunications.
Output signals
| 100 MHz | Sinusoidals, RH = 50 Ohm | Urms= (1.0 ± 0.2) V |
| 10 MHz | ||
| 5 MHz | ||
| 1 Hz | Positive polarity pulses, RH = 50 Ohm | Um= 3.5 V
tИ =10 µs τф = 3 ns |
| Output frequency tuning range | ±1•10-9 with step 1•10–15 |
OUTPUT FREQUENCY INSTABILITY (RMSD):
| TIME OF MEASUREMENT | RMSD |
| 1 s | 5•10-13 |
| 10 s | 1•10-13 |
| 100 s | 3•10-14 |
| 1000 s | 8•10-15 |
| 3600 s | 5•10-15 |
| 24 h | 4•10-15 |
| Error of storage of a time scale during transportation time of 24 h and running time of 12 h | not more than 2 ns |
| Operating temperature range | +(5÷40)°С |
| Temperature frequency coefficient | TFC ≤ 3•10-15 1/К |
| Frequency magnetic coefficient | FMC ≤ 4•10-15 1/Э |
| Electric power supply: | |
| from AC mains by voltage | 100÷240 V (48 – 440 Hz) |
| from DC mains by voltage | 10 ÷ 36 V |
| Consumed power: | |
| when warming up and charging the battery | not more than 200 Wt |
| in a heated state (at + 20 °С) | not more than 100 Wt |
| Independent operation time from accumulator battery | not less than 3 hours |
| Weight | 75 kg |
