vibration test equipment

Discussion in 'General Electronics Chat' started by breadhead, Jan 21, 2014.

  1. breadhead

    Thread Starter New Member

    Jan 21, 2014
    1
    0
    Hello everyone. I rebuild vintage audio turntables and am looking for a means to validate upgrades in regards to their effect on lessening vibration transfer. These turntables have a mix of belts, pullets, electric motors, etc. My question is this. Can anyone recommend vibration testing equipment that would be suitable for this? Thank you very much. Jim
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,023
    3,236
    A good transducer is the turntable pickup. Just run the pickup in the continuous groove at the center of an LP and measure the pickup. Since the pickup cartridge output is only a view millivolts you will need to amplify it with a low noise op amp. Then some type of signal analyzer software for your computer may work. Or a digital oscilloscope with FFT capability may be sufficient to resolve the various vibration frequencies. If not you will need to go to a more expensive low frequency signal analyzer.
     
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