EDM Modal MIMO FRF Testing includes a dedicated test
setup and operation process flow using multiple simultaneous
shakers. Using a large channel count data acquisition system
(i.e., Spider- 80X or Spider-80Xi), it provides much higher
efficiency and accuracy for the FRF measurements.
When using multiple shaker random excitation applications,
the shaker-driving source signals are guaranteed to be
uncorrelated with one another.
Multiple shaker excitation is useful to separate and identify
repeated or highly coupled modes. With more than one reference, multiple columns of the FRF signals can be
measured simultaneously. Combined with the poly reference
curve fitting algorithm, the modal participation factor helps to
isolate the repeated and highly coupled modes.
The modal analysis process is seamlessly integrated with the
MIMO FRF testing.
Features:
■ Includes all features of SIMO FRF test, plus,
■ One or multiple excitation (reference)