Results 41 to 50 of about 2,873,297 (289)

Analytical Calculation of Mutual Inductance of Search Coils in Interior Permanent Magnet Synchronous Motor

open access: yesWorld Electric Vehicle Journal
Inductance is an important parameter for motor design and control, and the performance of the motor is closely related to the inductance parameter. To solve the problem of the complex magnetic circuit structure of search coil mutual inductance, this ...
Xinmin Li   +3 more
doaj   +1 more source

Measurement of Sudden Displacements in Superconducting Coils using Search-coils

open access: yesTEION KOGAKU (Journal of the Cryogenic Society of Japan), 2009
Search-coils, which can detect magnetic field variations, have been applied to the measurement of superconducting coil displacements. The advantage of the search-coil is that it can measure displacements which occur in an arbitrary section of a superconducting coil without making contact with a winding.
AOKI, Manabu   +4 more
openaire   +2 more sources

Search Coil-Based Startup Angle and Rotor Position Estimation for Enhanced Full-Speed-Range Motor Drives

open access: yesIEEE Access
This study presents a fully integrated motor drive system capable of full-speed-range operation by employing a rotor angle estimation method based on an enhanced search coil architecture.
Hsien-Yuan Hsu, Min-Fu Hsieh
doaj   +1 more source

Design of PCB search coils for AC magnetic flux density measurement

open access: yesAIP Advances, 2018
This paper presents single-layer, double-layer and ten-layer planar square search coils designed for AC magnetic flux density amplitude measurement up to 1 T in the low frequency range in a 10 mm air gap.
Michal Ulvr
doaj   +1 more source

Inductive localization accuracy of a passive 3-D coil in an Industry 4.0 environment [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2019
In this paper a localization system of a passive 3-D coil is proposed and signal uncertainties due to the 3-D coil's arbitrary orientation are analyzed. The 3-D coil is excited by an alternating primary magnetic field.
R. Psiuk   +5 more
doaj   +1 more source

Routine phasing of coiled-coil protein crystal structures with AMPLE

open access: yesIUCrJ, 2015
Coiled-coil protein folds are among the most abundant in nature. These folds consist of long wound α-helices and are architecturally simple, but paradoxically their crystallographic structures are notoriously difficult to solve with molecular-replacement
Jens M. H. Thomas   +5 more
doaj   +1 more source

Enhancing the Fault Ride-through Capability of a DFIG-WECS Using a High-Temperature Superconducting Coil

open access: yesEnergies, 2021
With the increase in doubly fed induction generator-based wind energy conversion systems (DFIG-WECS) worldwide, improving the fault ride-through (FRT) capability of the entire system has been given much attention.
Mohamed I. Mosaad   +4 more
doaj   +1 more source

Precision Analysis and Design of Rotating Coil Magnetic Measurements System

open access: yesApplied Sciences, 2020
This research presents the design and construction of measuring instruments for a dipole magnetic field using a rotating coil technique. This technique is a closed-loop speed-control system where a Proportional-Integral (PI) controller works together ...
Soontorn Odngam   +4 more
doaj   +1 more source

The magnetic analog with spiral search coils [PDF]

open access: yesTransactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, 1960
The teaching of field theory is often enriched by citing analogies among the various potential fields: heat flow fields, fluid flow fields, current flow fields, electric fields, magnetic fields, etc. Thus, the magnetic analog is old in theory. However, it appears that it has not heretofore been developed into a fully useful device.
openaire   +1 more source

Canine retraction with nickel-titanium coil springs versus elastomeric chains: A systematic review [PDF]

open access: yesJournal of Dental Materials and Techniques
Objective: Canine retraction after first premolar extraction is a prevalent orthodontic procedure. This systematic review aimed to evaluate the efficiency of NiTi coil springs and elastomeric chains for canine retraction and assess the side effects of ...
Mariam Chatuan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy