The speed calibration device is a new type of high-precision speed source. It adopts dual-phase-locked speed stabilization technology and extremely micro-processing control technology. The system has both highly stable digital speed regulation and flexible and accurate stepless speed regulation. The output part adopts highly reliable brushless motor and precision low-noise gear shifting mechanism, which has strong adaptability and extremely wide adjustment range.
â–² Features â—† Can be used for the verification of various rotational speed instruments and rotational speed measuring systems such as rotational speed, reverse rotation protection and overspeed protection Verification â—† Applicable to the verification of various specifications of magnetoelectric, magnetoresistive, Hall, and eddy current speed sensors â—† Configure special accessories to verify various aviation tachometers and marine tachometers â—† Calibration Output characteristics of various speed measuring motors â—† Standard electrical signal source can be output to verify the secondary instrument of speed measurement â—† Equipped with a speed sensor signal input interface, the speed sensor can be calibrated separately without secondary instrument Test (provide several types of voltage drive for active speed sensor)
â–² Performance index (type 2)
◆ Speed ​​range: 20 ～ 33000 r / min
◆ Speed ​​uncertainty: 1 × 10-4
◆ Speed ​​stability: 5 × 10-5
◆ Time base performance: Startup accuracy 2 × 10-6
Daily stability 2 × 10-6
Time base frequency 10 MHz
◆ Speed ​​resolution: 0.1 (20 ～ 600 r / min)
1 (600 ～ 6600 r / min)
5 (6600 ～ 33000 r / min)
◆ Output standard electrical signal: frequency range 2 ～ 9999 Hz,
Accuracy is 1 × 10-5,
Waveform is square wave, amplitude is 12V
◆ Can output DC voltage: ± 5V, ± 12V, ± 24V
◆ Requirement range for access to external test signal: 1 ～ 9999 Hz, amplitude greater than 0.5V
◆ Total power: ≤300 W
◆ Noise≤75db
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