Results 41 to 50 of about 4,945 (206)

Design and Numerical Study of Electro-Hydrostatic Actuator [PDF]

Journal of Physics: Conference Series, 2019
Abstract In order to improve the compactness and integration of electro-hydrostatic equipment to meet their miniaturization, a new electro-hydrostatic actuator (EHA) scheme is proposed, and the working principle and feature are introduced.
Yousheng Yang, Wenqian Niu, Jing Zhao
openaire   +1 more source

A Systematic Literature Review on PHM Strategies for (Hydraulic) Primary Flight Control Actuation Systems

Actuators
Prognostic and Health Management (PHM) strategies are gaining increasingly more traction in almost every field of engineering, offering stakeholders advanced capabilities in system monitoring, anomaly detection, and predictive maintenance. Primary flight
Leonardo Baldo, Andrea De Martin, Giovanni Jacazio, Massimo Sorli   +3 more
doaj   +1 more source

A mechanistic study of the EC′ mechanism – the split wave in cyclic voltammetry and square wave voltammetry [PDF]

, 2016
In this paper, a detailed investigation of electrochemical reactions coupled with homogenous chemical steps using cyclic voltammetry (CV) and square wave voltammetry (SWV) was carried out to study the electrocatalytic (EC’) mechanism.
Cooper, Joshua J., Fisher, Adrian C., Lawrence, Nathan S., Song, Peng, Wadhawan, Jay D., Ward, Haydn J.   +5 more
core   +2 more sources

Ferrofluidic solenoid [PDF]

, 1973
An electromechanical actuator for producing mechanical force and/or motion in response to electrical signals is disclosed. The actuator includes a ferromagnetic fluid and a coil which are contained within an elastomeric capsule.
Sabelman, E. E.
core   +1 more source

Transport of free surface liquid films and drops by external ratchets and self-ratcheting mechanisms

, 2010
We discuss the usage of ratchet mechanisms to transport a continuous phase in several micro-fluidic settings. In particular, we study the transport of a dielectric liquid in a heterogeneous ratchet capacitor that is periodically switched on and off.
Ajdari, Bonn, Brunet, Brunet, Buguin, Cole, Curie, de Gennes, Doedel, Doedel, Engel, Hänggi, Israelachvili, John, John, John, Kargupta, Karin John, Lin, Linke, Matthias, Merkt, Noblin, Oron, Pismen, Podgorski, Quéré, Ramos, Rousselet, Savel’ev, Savel’ev, Savel’ev, Savel’ev, Savel’ev, Savel’ev, Snoeijer, Stroock, Thiele, Thiele, Thiele, Uwe Thiele   +40 more
core   +3 more sources

Optical waveguide sensors [PDF]

, 1986
An overview of the field of optical waveguide sensors is presented. Some emphasis is laid on the development of a single scheme under which the diversity of sensor principles can be arranged.
Fluitman, J., Popma, Th.
core   +2 more sources

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Modeling and Mode Switching Analysis of Electro‑hydrostatic Actuators for Primary Flight Control System

Transactions of Nanjing University of Aeronautics and Astronautics
With the advancement of more electric aircraft （MEA） technology， the application of electro-hydrostatic actuators （EHAs） in aircraft actuation systems has become increasingly prevalent.
GUO Tuanhui, FU Yongling, CHEN Juan
doaj   +1 more source

Closed-loop feedback control for microfluidic systems through automated capacitive fluid height sensing [PDF]

, 2018
Precise fluid height sensing in open-channel microfluidics has long been a desirable feature for a wide range of applications. However, performing accurate measurements of the fluid level in small-scale reservoirs (
Griffith, Linda G, Kassis, Timothy, Noh, Minkyun, Soenksen Martinez, Luis Ruben, Trumper, David L   +4 more
core   +1 more source

Performance Analysis of an Electro-Hydrostatic Actuator

Journal of the Korean Society for Aeronautical & Space Sciences, 2007
The EHA(Electro-hydrostatic Actuator) reveals completely different characteristics from the conventional valve-controlled Electro-hydraulic actuators. In this paper, its mathematical model including nonlinear elements was derived to be verified by experiments.
openaire   +2 more sources