標題: Enhancement of Optical Adaptive Sensing by Using a Dual-Stage Seesaw-Swivel Actuator with a Tunable Vibration Absorber
作者: Chou, Po-Chien
Lin, Yu-Cheng
Cheng, Stone
機械工程學系
Department of Mechanical Engineering
關鍵字: small-form-factor;VCM;PZT;swing arm;absorber
公開日期: 1-May-2011
摘要: Technological obstacles to the use of rotary-type swing arm actuators to actuate optical pickup modules in small-form-factor (SFF) disk drives stem from a hinge's skewed actuation, subsequently inducing off-axis aberrations and deteriorating optical quality. This work describes a dual-stage seesaw-swivel actuator for optical pickup actuation. A triple-layered bimorph bender made of piezoelectric materials (PZTs) is connected to the suspension of the pickup head, while the tunable vibration absorber (TVA) unit is mounted on the seesaw swing arm to offer a balanced force to reduce vibrations in a focusing direction. Both PZT and TVA are designed to satisfy stable focusing operation operational requirements and compensate for the tilt angle or deformation of a disc. Finally, simulation results verify the performance of the dual-stage seesaw-swivel actuator, along with experimental procedures and parametric design optimization confirming the effectiveness of the proposed system.
URI: http://dx.doi.org/10.3390/s110504808
http://hdl.handle.net/11536/8907
ISSN: 1424-8220
DOI: 10.3390/s110504808
期刊: SENSORS
Volume: 11
Issue: 5
起始頁: 4808
結束頁: 4829
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