A NOVEL LOW-SHOCK CALIBRATION METHOD USING DIGITAL FILTER TECHNIQUE

• Abstract:

  A piezoelectric accelerometer output voltage with zero shift was induced by the low-frequency response of the charge amplifier. So we designed a virtual amplifier with same input-output characteristic as the charge amplifier, and shock sensitivities of a piezoelectric accelerometer were evaluated by applying the input acceleration to the virtual amplifier. The shock sensitivities were comparable to the vibration calibration results.
• Keywords:

  shock calibration, piezoelectric accelerometer, charge amplifier, laser interferometer, digital filter
• Download:

  IMEKO-WC-2015-TC22-437.pdf
• DOI:

  _unreg_wc-2015.437

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