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Recent content by steve30

  1. steve30

    high coefficient of friction with glass

    Hello, Which materials have a high coefficient of friction with glass ? The material wil be used to design a spherical support (4 mm) for a flat glass surface (point contact) Thanks
  2. steve30

    Resonence probem in machine

    Interferometrs fixed on the systeme are used to measure and calculate a FFT. But I can not pick up the resposible element of the machine out of the FFT.
  3. steve30

    Resonence probem in machine

    I am experiencing a system instability problem due to a resonence. The system is higly complex consisted of drives, voice colis, piezos, springs and compex mechanics. It performes precision movement in 6 direction in 100 mm range (motion resolution is in nanometers). Some times (once in a day)...
  4. steve30

    Increasing width of notch filter

    I am trying to filter a resonence band around 300 Hz using a notch filter. The resonance band has bandwidth of 30 Hz. I can not afford to apply such a wide notch filter due to unwanted phase lag. How I can proceed? Thanks
  5. steve30

    Resonence probem in a highly complex system

    I am experiencing a system instability problem due to a resonence. The system is higly complex consisted of drives, voice colis, piezos, springs and compex mechanics. It performes precision movement in 6 direction in 100 mm range (motion resolution is in nanometers). very seldon (once in a...
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