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    Laser interferometer

    Technical Parameters:
    System accuracy: ± 0.5ppm (0 ~ 40 ℃ the entire working environment)
    Laser frequency stabilization accuracy: ± 0.05ppm
    Resolution: 0.001um
    Measurement speed: 4.0m / sec
    Sampling frequency: 50KHz
    Measuring range: 0-80metres
    Warm-up time: ~ 6 minutes
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