Ball bearing vibration exciters for modal analysis

The APS 113 ELECTRO-SEIS® long stroke exciter is a ball bearing force generator specifically designed to be used alone or in arrays for studying dynamic response characteristics of various structures.
The APS 400 ELECTRO-SEIS® long stroke exciter is a ball bearing force generator specifically designed to be used alone or in arrays for studying dynamic response characteristics of various structures.
The APS 420 ELECTRO-SEIS® long stroke, electrodynamic force exciter is specifically designed to be used alone or in arrays for studying dynamic response characteristics of various structures.
   
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