Vibration test and analysis system of optical recording equipment based on Polytec laser Doppler vibrometer

In accordance with the characteristic of high frequencies on vibration signals of optical recording equipment,the Polytec laser Doppler vibrometer is employed as the instrument for picking vibration signals.Then the vibration test and analysis system of optical recording equipment based on Polytec laser Doppler vibrometer is presented.The experimental system can be applied to vibration test of disk,slider,suspension and compact disc etc.This experimental system provides a good foundation for testing and analyzing of the dynamic characteristic of optical recording equipment.