System for verification of the signal quality dependence of a laser vibrometer

Abstract

The paper describes impact of a laser vibration measurement parameters on the signal quality of vibration measurement using Laser Doppler Vibrometer (LDV). Among these parameters are distance, perpendicularity, material, roughness or polarization properties of the measured surface. Follows the presentation of the measurement system that will be able to measure the quality of the LDV signal affected by these influences for a specific surface, at different distances and angles. Based on the characteristics obtained, it will be possible to assess the suitability of the measured surface for LDV use.