Compact vibration sensor for testing sub-resonance of slim optical pickup actuators

摘要

A new interferometric vibration sensor for testing both vibration and subsidiary resonance that have detrimental effects on the servo performance of the optical pickup actuator is presented. Experimental results of slim optical pickup actuators obtained from the sub-resonance tester such as the interferometric vibration sensor are presented. It can be also used for other applications in the R&D domain and production environments with a low price and compact size.