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Sensors 2010, 10(4), 2946-2956; doi:10.3390/s100402946
Article

Dynamic Characteristics of a Hydraulic Amplification Mechanism for Large Displacement Actuators Systems

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Received: 1 January 2010; in revised form: 23 February 2010 / Accepted: 9 March 2010 / Published: 29 March 2010
(This article belongs to the Special Issue Advances in Actuators)
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Abstract: We have developed a hydraulic displacement amplification mechanism (HDAM) and studied its dynamic response when combined with a piezoelectric actuator. The HDAM consists of an incompressible fluid sealed in a microcavity by two largely deformable polydimethylsiloxane (PDMS) membranes. The geometry with input and output surfaces having different cross-sectional areas creates amplification. By combining the HDAM with micro-actuators, we can amplify the input displacement generated by the actuators, which is useful for applications requiring large deformation, such as tactile displays. We achieved a mechanism offering up to 18-fold displacement amplification for static actuation and 12-fold for 55 Hz dynamic actuation.
Keywords: hydraulic amplification; liquid encapsulation; dynamic actuation; tactile display; MEMS hydraulic amplification; liquid encapsulation; dynamic actuation; tactile display; MEMS
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Arouette, X.; Matsumoto, Y.; Ninomiya, T.; Okayama, Y.; Miki, N. Dynamic Characteristics of a Hydraulic Amplification Mechanism for Large Displacement Actuators Systems. Sensors 2010, 10, 2946-2956.

AMA Style

Arouette X, Matsumoto Y, Ninomiya T, Okayama Y, Miki N. Dynamic Characteristics of a Hydraulic Amplification Mechanism for Large Displacement Actuators Systems. Sensors. 2010; 10(4):2946-2956.

Chicago/Turabian Style

Arouette, Xavier; Matsumoto, Yasuaki; Ninomiya, Takeshi; Okayama, Yoshiyuki; Miki, Norihisa. 2010. "Dynamic Characteristics of a Hydraulic Amplification Mechanism for Large Displacement Actuators Systems." Sensors 10, no. 4: 2946-2956.



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