Remotely-Driven Smart Actuator Based on Electro-Active Paper(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space En
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This paper presents the concept of microwave remotely-driven smart actuator. The features of remotely-driven smart actuator offer unique performance and application capabilities and exploit many of these unique capabilities. Since the microwave-driven actuator does not require carry-on-battery, ultra-lightweight, and distributed micro size actuators can be made. A dipole rectifying antenna (rectenna) array receives the microwave and converts it into a DC power. Since the rectenna is a thin film, it can be easily integrated into smart material actuator. The converted DC Power from the rectenna array is fed into the actuator through the microwave conversion/control circuit. Recently, cellulose based paper has been came across as an electro-active paper (EAPap) material so as to be used as artificial muscles for biomimetic insects. Since the power requirement of EAPap is less than the safety limit of microwave power in air, the EAPap actuators can be driven by wireless microwave power. So far, the magnitude in the order of tens mW/cm^2 has been successfully transmitted via microwave in a laboratory level experiment, which is enough power to activate EAPap actuators. This idea is useful for specific applications that require multifunctional capabilities such as smart skin, ultra-lightweight space structures, micro robots, flapping wing for insect-like flying objects and smart wan paper as well. Current research status along with its issues will be addressed.
- 一般社団法人日本機械学会の論文
- 2004-09-04