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The single most important issue in Random testing after accuracy is correct random energy. This means the excitation energy must be, not onlyRandom
random in frequency, amplitude, and phase but constantly changing as well. Incorrect random energy causes the test to fail to conform to industry test standards.

The accepted specification for amplitude variability is described as: 120 Degrees of Freedom (DOF) for control and WILL vary at least +/- 1dB. It does not say it MAY. The statistical standard for Random says it WILL vary +/- 1dB, at least.


  • Continuous Control to a PSD rather than “Once per Test” control to the system ID
  • One Click Data Reporting with PDF Creation
  • Choose independent limit profiles for each active measurement channel
  • Determine Frequency Response Function (FRF) measurements for selected channels
  • Easy integration with chambers and other test instrumentation
  • Exceptionally rapid correction for resonant frequencies – provides excellent protection against over test
Adaptive Control (standard on PUMA) – is a tool that permits PUMA to “see the future” and adjust the control speed in real time to the next measure of error that is about to happen. This ‘look ahead' feature allows the PUMA to control problems lesser systems don't even understand

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