Bending vibration measurement on rotors by laser vibrometry

Torsional and Bending Vibration Measurement on Rotors Using Laser Technology

Laser Doppler Vibrometry measurements of human cadaveric tympanic membrane vibration

OBJECTIVE To determine the feasibility of measuring tympanic membrane (TM) vibrations at multiple locations on the TM to differentiate normal eardrums from those with associated ossicular pathologies. DESIGN Cadaveric human temporal bone study. SETTING Basic science laboratory. METHODS A mastoidectomy and facial recess approach was performed on four cadaveric temporal bones to obtain acce...

Measurement of the Rayleigh wave polarization using 1D Laser vibrometry

The paper presents measurement procedures for the evaluation of velocity/displacement components of surface elastic waves through a single beam Laser Vibrometer. The developed technique is applied for the estimation of Rayleigh wave polarization in aluminum specimens. The estimated polarization orbits are compared with the analytical ones to demonstrate the effectiveness of the measurement tech...

Laser Vibrometry Across Sectors Laser Vibrometry Across Sectors Non-Contact Measurement of Structural Dynamics in Civil Engineering Application Notes

A new method for filtering speckle noise in vibration signals measured by Laser Doppler Vibrometry for on-line quality control

Mechanical fault diagnostics for quality control of manufacturing appliances is often based on the analysis of machine vibrations. In the presence of mechanical faults, vibration signals comprise periodic impulses with a characteristic frequency corresponding to a particular defect. Vibrometers based on LDV (Laser Doppler Vibrometry) are an alternative to the traditional use of piezo-electric a...