Title :
Shear-mode piezo transducers for HGA dynamics testing
Author :
Kulangara, Sivadasan K.
Author_Institution :
Magnecomp Corp., Temecula, CA, USA
Abstract :
Shakers used in modern head gimbal assembly (HGA) resonance testers need to be linear, repeatable, and with minimal out-of-plane movements up to several tens of kilohertz. The authors investigate the suitability of shear-mode piezo actuators for the task. These compact devices also double up as sensors for HGA dynamics testing.
Keywords :
dynamic testing; magnetic heads; piezoelectric transducers; HGA dynamics testing; head gimbal assembly resonance testers; minimal out-of-plane movements; shakers; shear-mode piezo transducers; Actuators; Assembly; Bandwidth; Gain measurement; Magnetic heads; Resonance; Resonant frequency; Testing; Transducers; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.815445
