Concept

Rotary actuator

Publications associées (122)

Online trajectory generation in an amphibious snake robot using a lamprey-like central pattern generator model

This article presents a control architecture for controlling the locomotion of an amphibious snake/lamprey robot capable of swimming and serpentine locomotion. The control architecture is based on a central pattern generator (CPG) model inspired from the n ...

IEEE2007

Delta Thales, a novel architecture for an orientating device with fixed RCM (remote center of movement) and linear movement in direction of the RCM

Reymond Clavel, Patric Pham

A new 3 degrees of freedom (dof) structure is presented. It features rotation on two axes with a fixed remote center of motion (RCM) i.e. it always aims at the same point. The third axis is a linear movement in direction of the fixed point. This type of ki ...

2006

Mobile User Navigation Supported by WSAN: Full-fledge Demo of the SmartPark System

Matthias Grossglauser, Aristidis Papaioannou

The purpose of this demonstration is to illustrate that an off-the-shelf Wireless Sensor and Actuator Network (WSAN) can be used to discover resource availability and guide mobile users to these resources without any support from a navigation system like G ...

2006

Contactless electrochemical actuator for precise sampling on microchip

Martinus Gijs, Lynda Metref, Daniel Berdat

The scope of this work has been the design of a mechanical actuator in polydimethylsiloxane (PDMS) / glass for precise liquid sampling, based on the electrochemical generation of O2. The device is composed of two chambers separated by a PDMS membrane. In t ...

2005

High resolution miniature rotary microactuator

Jean-Marc Breguet, Walter Driesen

For the development of high precision mobile microrobots with a size of about one cm3, capable of micromanipulation tasks, small and precise actuators have to be developed in order to provide the microrobot and its manipulation tools with the required degr ...

2004

A ferrofluid micropump for lab-on-a-chip applications

Martinus Gijs, Heinrich Hofmann, Christophe Yamahata, Mathieu Chastellain

A disposable micropump is presented that uses the piston actuation principle and relies on the magnetic properties of a ferrofluid, a colloidal suspension of nanosize ferromagnetic particles. The cost effective micropump consists of 7 bonded layers of poly ...

2003

Precise positioning using the electrostatic glass motor

Roland Moser

Precise positioning over a long stroke is required in various fields. Important advances in the field of electromagnetic motors, piezoelectric actuators and bearing technology allow nanometric and sub-arc-second resolution for linear or rotary actuators, r ...

EPFL2002

Position Control of Piezoelectric Actuators by Thick-Film Piezoresistive Elements

Peter Ryser, Thomas Maeder, Enrico Colla, Jean-Marc Breguet, Arvid Bergander

Precise control of actuator position can be achieved by using thick-film resistors (TFRs) for piezoresistive position feedback. ...

2002

Monolithic Piezoceramic Flexible Structures for Micromanipulation

Reymond Clavel, Simon Nessim Henein, Jean-Marc Breguet

This paper presents several flexible structures cut directly into piezoelectric ceramics. Some parts of these structures are active while other play the role of joints or levers. With this innovative technology, this displacement of the piezos has been amp ...

1997

Model-based control of fast parallel robots

A global approach to the problem of model-based control of fast parallel robots is proposed in this work. Fundamental differences between the well-known serial arms and parallel manipulators are first explained. A formalism inspired from Denavit-Hartenberg ...

EPFL1994

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