Multiple-Input Multiple-Output (MIMO) Sine Test

EDM Modal Sine Testing includes a dedicated test setup and operation process flow using a single or multiple modal shakers outputting a sine wave to acquire FRF signals. The Source Output type is either Swept sine or Stepped sine. The sweep mode can be linear or logarithmic. The FRF signals of each measurement DOFs with respect to defined reference DOF will be constructed. The output drive level can be defined to run the test under no control strategy, or the response of a control channel can be specified to run the test in a closed loop.

Features:

  • Ease of use testing process

  • Point/direction auto/manual increment

  • Multiple swept & stepped sine excitations

  • Multiple number of sweeps

  • Different initial phase conditions for each sweep: +/- or random

  • Testing Plan for the process and status

  • Specify source output level; or control the amplitude of multiple input channels

  • Multiple sine excitation with sine tone (references)

  • Specify source output level; or control the amplitude of one input channel

  • Linear, Logarithmic sweep mode

  • Filter, RMS, Mean or Peak for measurement strategy

  • Fixed or proportional tracking filter, with user defined bandwidth

  • User defined Start/end frequency; Number of points; Delta F (or Points/Oct); Sweep Speed; Transition speed

The modal analysis process is seamlessly integrated with the MIMO Sine testing.