Results 21 to 30 of about 35,312 (308)

Measurement of frictional torque of a directacting valvetrain using a shaft-to-shaft torque transducer to study the effect of Laser Surface Texturing on friction reduction [PDF]

open access: yesMATEC Web of Conferences
The study of tribological applications requires measuring various parameters, including RPMs, friction, and wear. The useful information is sometimes not readily available in a measurement and requires further postprocessing to extract that information ...
Siddiqui Muhammad Rizwan   +6 more
doaj   +1 more source

A high - precision measurement chain for reference purposes

open access: yesMeasurement: Sensors, 2021
Reference transducers not only for high pressure (GPa) but also for high force (MN) and high torque (MN▪m) have been based on foil-type strain gauges for decades, due to their excellent signal-to-noise ratio and established, well-proven technology. Thus,
André Schaefer
doaj   +1 more source

Design study for a multicomponent transducer for wind turbine test benches [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2020
This paper covers the design study of a multicomponent transducer (MCT) for wind turbine test benches. The MCT will cover the characteristics of wind turbines in the power range of up to 6 MW.
J. Gnauert   +4 more
doaj   +1 more source

Mechanical Evidence of the Orbital Angular Momentum to Energy Ratio of Vortex Beams [PDF]

open access: yes, 2012
We measure, in a single experiment, both the radiation pressure and the torque due to a wide variety of propagating acoustic vortex beams. The results validate, for the first time directly, the theoretically predicted ratio of the orbital angular ...
Alexander Volovick   +7 more
core   +4 more sources

Aspects Concerning the Torque Ripple Control of the Brushless DC Motor

open access: yesAdvances in Electrical and Computer Engineering, 2013
This paper deals with two advanced numerical structures to control the electromagnetic torque ripple of Brushless Direct Current Motors (BLDCM), indirectly achieved by phase currents control and directly by the Direct Torque Control (DTC) technique. In
BALUTA, G., URSANU, G.
doaj   +1 more source

Analysis of the Output Characteristics of a Novel Small-Angle Transducer Used in High-Precision Inertial Sensors

open access: yesSensors, 2018
This paper presents the design of a novel small-angle transducer characterized by a simple structure, fast response and very low reaction torque. A theoretical model is presented which describes the linear relationship between the output voltage and the ...
Zongyu Chen, Jiuzhi Dong, Xingfei Li
doaj   +1 more source

Development and Characterization of a Compact Device for Measuring the Braking Torque of a Vehicle

open access: yesSensors, 2020
In this article, a new force transducer is designed, developed and built for the measurement of braking forces in the wheel rim of a motor vehicle. The parameters of the transducer design are justified using numerical simulation.
Ester Olmeda   +3 more
doaj   +1 more source

Development of a non-contact torque transducer based on the laser speckle contrast method [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2017
When a torque measurement is required, torque transducers show many drawbacks during their use: the usual limits are the need for contact and the effects on shaft line parameters. A new approach is proposed in this work: a non-contact torque meter for
A. Garinei, R. Marsili
doaj   +1 more source

Investigating wind turbine dynamic transient loads using contactless shaft torque measurements

open access: yesThe Journal of Engineering, 2019
The wind industry is showing increasing awareness about the importance of long-term direct shaft mechanical torque measurements to fully understand wind turbine (WT) dynamics, adopt proactive solutions for extreme load mitigation and enhance condition ...
Donatella Zappalá   +3 more
doaj   +1 more source

Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines [PDF]

open access: yes, 2009
Direct Torque Control (DTC) has been extensively researched and applied to most AC machines during the last two decades. Its first application to the Brushless Doubly-Fed Reluctance Machine (BDFRM), a promising cost-effective candidate for drive and ...
Chaal, Hamza, Jovanovic, Milutin
core   +2 more sources

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