FOVDAR: Eccentric Mass Vibrator Control and Data Acquisition Software/PC
FOVDAR is a PC-based controller for performing forced vibration tests using an eccentric mass vibrator.
Allows the user to define the desired sine step sweep range of a test (low and high frequency and step size, vibrator stabilization time).
Allows the user to enter location information and calibration factors for 16-128 channels of response transducers.
Creates the drive signal to the eccentric mass vibrator to conduct the sweep and via closed adaptive loop verifies the correct frequency/stabilization of the vibrator (using a pulse feedback).
Acquires data on 16-128 channels of transducers and automatically correlates the sinusoidal response contained in the signals, thereby rejecting noise. The result is a frequency domain response function (in-and-out-of-phase response) for each channel. The resonant frequencies, damping, and mode shapes can typically be easily seen from these plots, or they can be animated using ME’scopeVES.
Provides for plotting, archiving, and exporting of all data as acceleration, velocity, or displacement. These can also be normalized to unity force.
Test data set ups can be saved and retrieved for later use, review, and modification.· Optionally, FOVDAR can be operated remotely via a wireless connection, thereby allowing the user to be up to 200 m from the vibrator. (See also ANCO products Eccentric Mass Vibrators and FEA & Seismic Analysis.)