Results 21 to 30 of about 340,780 (299)

Comparative Study of Traveling and Standing Wave-Based Locomotion of Legged Bidirectional Miniature Piezoelectric Robots

open access: yesMicromachines, 2021
The use of wave-based locomotion mechanisms is already well established in the field of robotics, using either standing waves (SW) or traveling waves (TW).
Jorge Hernando-García   +3 more
doaj   +1 more source

Suppressing low-order eigenmodes with local control for deformable mirrors [PDF]

open access: yes, 2012
To improve the mechanical characteristics of actively controlled continuous faceplate deformable mirrors in adaptive optics, a strategy for reducing crosstalk between adjacent actuators and for suppressing low-order eigenmodes is proposed.
Andersen, Torben   +4 more
core   +1 more source

Piezoelectric Actuators for Tactile and Elasticity Sensing

open access: yesActuators, 2020
Piezoelectric actuators have achieved remarkable progress in many fields, being able to generate forces or displacements to perform scanning, tuning, manipulating, tactile sensing or delivering functions.
Javier Toledo   +3 more
doaj   +1 more source

Grasping and Control Issues in Adaptive End Effectors [PDF]

open access: yes, 2004
Research into robotic grasping and manipulation has led to the development of a large number of tendon based end effectors. Many are, however, developed as a research tool, which are limited in application to the laboratory environment.
Crowder, Richard, Dubey, Venketech
core   +1 more source

Carbon Nanotube Actuators

open access: yesScience, 1999
Electromechanical actuators based on sheets of single-walled carbon nanotubes were shown to generate higher stresses than natural muscle and higher strains than high-modulus ferroelectrics. Like natural muscles, the macroscopic actuators are assemblies of billions of individual nanoscale actuators.
R. H. BAUGHMAN   +12 more
openaire   +7 more sources

A Simple Method to Allow Parylene-C Coatings on Gold Substrates

open access: yesProceedings, 2017
Parylene-C, a biocompatible coating material, does not adhere well to metals. This is problematic especially for biomedical devices containing gold structures.
Sander van den Driesche   +4 more
doaj   +1 more source

Analysis of a discrete-layout bimorph disk elements piezoelectric deformable mirror [PDF]

open access: yes, 2018
We introduce a discrete-layout bimorph disk elements piezoelectric deformable mirror (DBDEPDM), driven by the circular flexural-mode piezoelectric actuators.
Chen, Ziguang   +4 more
core   +1 more source

Novel Design of Additively Manufactured Micromixer in a Microchannel Comprising Mounting and Sealing Elements

open access: yesProceedings, 2018
An additively manufactured three-dimensional mixing element (3DME) integrated in a microchannel is presented. The 3DME increases the interfacial contact-surface by swapping the positions of the incoming streaming liquids.
Martin Oellers   +4 more
doaj   +1 more source

Sliding-mode control of a flexure based mechanism using piezoelectric actuators [PDF]

open access: yes, 2012
The position control of designed 3 PRR flexure based mechanism is examined in this paper. The aims of the work are to eliminate the parasitic motions of the stage, misalignments of the actuators, errors of manufacturing and hysteresis of the system by ...
Acer, Merve   +2 more
core   +3 more sources

Design and Evaluation of Capacitive Smart Transducer for a Forestry Crane Gripper

open access: yesSensors, 2023
Stable grasps are essential for robots handling objects. This is especially true for “robotized” large industrial machines as heavy and bulky objects that are unintentionally dropped by the machine can lead to substantial damages and pose a significant ...
Narendiran Anandan   +3 more
doaj   +1 more source

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