VT-420 Visual ODS Pro™

Signal Processing Features:

• Simultaneous FFT & IFFT on all measurements in a Data Block. The FFT will transform any number of samples, and is not restricted to a power-of-2
• Integration & differentiation of time or frequency signals
• Cut, Copy & Paste of time or frequency signals
• DC Removal of time or frequency signals
• Sort & Select waveforms
• Notch & Band windows for removing unwanted data from time or frequency waveforms
• Force and exponential windows to remove noise and leakage from impulse response measurements
• A flat top window for obtaining accurate narrow band signal amplitudes
• A Hanning window for minimizing leakage effects in frequency spectra
• Calculation of Fourier Spectra, Auto Spectra, PSDs & ODS FRFs from time domain operating data
• Signal processing includes, Rectangular, Hanning, or Flat Top time domain windows, triggering, linear or peak hold spectrum averaging, and overlap processing
• ODS FRFs can be calculated either from Auto & Cross Spectra or from Transmissibility’s and reference Auto Spectra
• Order-tracked ODS’s can be displayed directly from multi-channel Order-tracked response only data
• Block Math functions include complex scaling, add, subtract, multiply, divide, conjugate, and more
• Units conversion and scaling between Linear (RMS) and Power (MS)
• Measurement scaling between Peak, Peak to Peak, and RMS
• Waveform statistics (Minimum, Maximum, Mean Squared, RMS, Variance, Standard Deviation, Absolute Deviation, Power, Linear Power, Crest Factor, Skew, Kurtosis)

Shape Processing Features:

• Shape Integration & differentiation
• Shape Cut, Copy & Paste
• Sort & Select of shapes and shape components (DOFs)
• Calculates a shape product, for locating nodal points and lines among all shapes