Modal analysis with stepper motor positioning
Complete measurement cycle with axis control.
Automated modal analysis on a cube test specimen with stepper-motor-controlled positioning (Beckhoff stepper motor terminal EL7031). After every measurement run the specimen is rotated by one increment through a motion controller task so that several geometry points are excited and measured one after the other; when finished, the motor returns to the zero position. The characteristic calculation is based on FRF spectra — as a single-channel variant and as a MIMO block for multi-channel evaluation. Operator guidance through LED output and a start button.
Workflows in detail
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ModalAnalysis (test sequence)
Complete measurement cycle with axis control.
Start → initialise → main loop (ready/LED on → start button trigger → modal loop with impulse outputs → motor increment) → motor zero position → end; error flow with trigger and output.
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ModalAnalysis / FRF MIMO
Characteristic blocks for single-channel and multi-channel FRF calculation.
Characteristic start → FRF spectrum → characteristic end.
Take it with you
Import through the SonicTC DbManager — individually or merged into an existing database.
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