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What is Acoustic Resonant Testing (ART)?

  • Simple, reliable, continous non-destructive part testing method
  • 100% inspection (whole part, every part)
  • Extends to process monitoring
How does ART work?
Step One:  An industrial instrumented hammer impacts the part with a measured and repeatable force.  The impact causes the part to ring.
Step Two:  Audible and inaudible sounds are measured by the microphone.
Step Three:  A spectrum analyzer performs a Fast Fourier Transform on the measured data.  A computer then translates this into a spectral line that is displayed using specialized software.
MDSC Hammer Actuator.jpg
Step Four:  NDT-RAM software compares the results to acceptable limits and accepts or rejects the part accordingly.
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