System for accurately measuring frequency
The utility model discloses a system for accurately measuring frequency. The system comprises a satellite time service receiver, a reference frequency scale, a frequency measuring instrument, a time difference measuring instrument and a computer, the satellite time service receiver receives a time s...
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| Hauptverfasser: | , , , , , , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a system for accurately measuring frequency. The system comprises a satellite time service receiver, a reference frequency scale, a frequency measuring instrument, a time difference measuring instrument and a computer, the satellite time service receiver receives a time service signal of a GNSS system through an antenna, and the satellite time service receiver and the reference frequency scale respectively output 1PPS pulse signals to the input end of a time difference measuring instrument for time difference measurement; wherein the measurement input end of the frequency measuring instrument is used for connecting a measured frequency signal, and the reference input end of the frequency measuring instrument is connected with a frequency scale signal output by areference frequency scale; and the measurement value of the time difference measurement instrument and the measurement data of the frequency measurement instrument are respectively sent to a computerfor data processing, and |
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