NDLI: Rotary Silicon Polymeric Composite Thermal Micro-Actuator

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Rotary Silicon Polymeric Composite Thermal Micro-Actuator

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Rotary Silicon Polymeric Composite Thermal Micro-Actuator

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Yang, Jiaping Tan, Cheng Peng Chong, Nyok Boon Lau, Gih Keong
Copyright Year	2013
Abstract	This paper reports a new rotary thermal micro-actuator. This new thermal actuator uses a pair of powerful silicon-polymeric composite benders to actuate a magnetic head slider into a rotation when the expandable polymer elements are resistively heated. The advantage is the rotary micro-actuator design can move the read/write head slider with a larger lateral displacement by using a new T-shape central hinge joint as compared to the previous translational design. The experimental results demonstrate that the prototyped device can reach up 314nm displacement by a 4V step voltage. The 1st mechanical resonance frequency has been pushed up to 35 kHz. Simulation shows that the micro-actuator can be subjected to 1000G shock loading under non-operation mode. The large displacement, high resonance frequency and robust shock resistance make the rotary thermal micro-actuator be very suitable for a wide range of precise positioning systems applications including dual-stage positioning systems in disk drives and resonance switches in microsystems.
Sponsorship	Information Storage and Processing Systems Division
File Format	PDF
ISBN	9780791855539
DOI	10.1115/ISPS2013-2891
Conference Proceedings	ASME 2013 Conference on Information Storage and Processing Systems
Language	English
Publisher Date	2013-06-24
Publisher Place	Santa Clara, California, USA
Access Restriction	Subscribed
Subject Keyword	Microelectromechanical systems Actuators Switches Microactuators Magnetic heads Rotation Displacement Design Hinges Polymer composites Composite materials Simulation Disks Silicon Resonance Shapes Shock (mechanics) Polymers
Content Type	Text
Resource Type	Article

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