Dual Shaker Vibration Test

In this short vibration testing video of part of an acceptance test, two SignalForce LE-4022-3" shaker systems operate in unison on a single rigidly attached sample payload. By using two shakers, the available force is doubled and the long test article has more realistic mounting locations. The shakers are individually controlled by a SignalStar Matrix multishaker vibration controller. The Matrix controller evaluates individual profiles, including phase and cross channel relationships. In the case of rigidly attached structures for dual shaker testing, the Matrix keeps both shakers in phase across all frequencies as the dynamics of the test change. Learn more at
Posted August 21, 2013
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