Next Article in Journal
Development of an Indoor Location Based Service Test Bed and Geographic Information System with a Wireless Sensor Network
Next Article in Special Issue
Quantitative Modeling of Coupled Piezo-Elastodynamic Behavior of Piezoelectric Actuators Bonded to an Elastic Medium for Structural Health Monitoring: A Review
Previous Article in Journal
Adaptive-Compression Based Congestion Control Technique for Wireless Sensor Networks
Previous Article in Special Issue
Sensing and Tactile Artificial Muscles from Reactive Materials
Sensors 2010, 10(4), 2946-2956; doi:10.3390/s100402946
Article

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

,
,
,
 and
*
School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
* Author to whom correspondence should be addressed.
Received: 1 January 2010 / Revised: 23 February 2010 / Accepted: 9 March 2010 / Published: 29 March 2010
(This article belongs to the Special Issue Advances in Actuators)
View Full-Text   |   Download PDF [1252 KB, uploaded 21 June 2014]   |  

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 (CC BY 3.0).
SciFeed

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
RIS
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.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert