Objective
The objective of this report is to compare Frequency Response Functions (FRFs) obtained from different measurement techniques and verify whether orthogonal and geometric projection reconstructions provide consistent results.
Experimental Setup and Measurement Overview
Measurements were performed at several angular positions using both accelerometer and vibrometer setups.
The following figures present representative FRF magnitude comparisons for selected measurement angles.
Orthogonal and Vibrometer Comparison (0°)
Comparison of orthogonal accelerometer and vibrometer measurements at 0°.
Accelerometer and Vibrometer Comparison (47.9°)
Comparison between accelerometer and vibrometer FRFs at 47.9°.
Tri-Axial Accelerometer Response
Measured tri-axial accelerometer response across the frequency range.
FRF Magnitude Reconstruction
Reconstructed FRF magnitudes comparing orthogonal (black), angled (red), and projected (blue) results.
Info: All plots are presented using a logarithmic scale for amplitude (m/s²/N) and a linear scale for frequency (Hz).