Investigation of the dynamics of 50% sliders using laser Doppler vibrometry

The dynamics of 50% style sliders are studied using laser Doppler vibrometry. Variations of air bearing frequencies detected from the upper and front surface of the slider are investigated as a function of disk velocity, suspension preload, and yaw angle. The experimental data is compared with numerical simulation results, and the dependence of air bearing stiffness and damping is investigated as a function of disk velocity. Results for the 50% slider are compared with those of 70% style sliders and full-size 330 style sliders