Results 21 to 30 of about 55,372 (282)

Construction of Differential Type Search Coil Magnetometer

open access: yesJournal of the Korean Magnetics Society, 2010
Search coil magnetometer has been used for detection of ac magnetic field with high sensitivity. To reduce demagnetizing factor of core and increase S/N ratio of search coil magnetometer, the core was divided by two parts and coil was wound on each cores. Two coils were connected serially and put into amplifier as differential mode.
J.H. Kim, De-Rac Son
exaly   +3 more sources

Performance Test of Search Coil Sensors with Different Core Types

open access: yesJournal of Astronomy and Space Sciences
A search coil magnetometer (SCM) is a common equipment to observe energy transmission and vibrations in space physics, enabling measurements across a wide frequency range of up to tens of kilohertz.
Hyeonji Kang   +6 more
doaj   +2 more sources

The Search-coil Magnetometer for the THOR mission [PDF]

open access: yes, 2016
Turbulence Heating ObserveR (THOR) is the first mission ever flown in space fully dedicated to plasma turbulence. The search-coil magnetometer (SCM) of THOR is a triaxial dual-band antenna dedicated to measuring the magnetic field fluctuations in the frequency range [1Hz,4kHz] and [1,200]kHz.
Sahraoui, Fouad   +10 more
core   +8 more sources

Proposing New Planar-Type Search Coil for Permanent Magnet Synchronous Motor: Design and Application for Position Estimation

open access: yesIEEE Access, 2021
Conventional position sensors for permanent magnet synchronous motor, such as optical encoder, resolver, or hall sensor, can get fault by the stress. The fault of the motor position sensor may cause serious accidents.
Jun-Hyuk Im, Jin Hur
doaj   +1 more source

Designing Ultrahigh Frequency Motor Rotor Position Search Coils for Electric Propulsion in Drones

open access: yesDrones, 2023
As the core of electric propulsion in drones, the motor has higher requirements for its reliability and fault tolerance. Accurate acquisition of rotor position information is a prerequisite for a motor-driven drone’s system to operate stably. Traditional
Xinmin Li   +4 more
doaj   +1 more source

Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests

open access: yesBrain Sciences, 2023
Over the past 20 years, several eye-tracking technologies have been developed. This article aims to present a new type of eye tracker capable of producing detailed information on eye and head movements using an array of magnetoresistive detectors fixed ...
Aniello Donniacuo   +5 more
doaj   +1 more source

Magnetic Flux Density Measurement Platform for an Inductive Wireless Power Transmitter Coil Design

open access: yesSensors, 2022
This paper presents a platform developed for automated magnetic flux density measurement. The platform was designed to be used to measure the magnetic flux density of the transmitter/receiver coil of an inductive wireless power transfer system.
Nataša Prosen   +2 more
doaj   +1 more source

Determination of rotor slot number of an induction motor using an external search coil [PDF]

open access: yes, 2009
This paper describes determination of the number rotor slots of an induction motor from the induced emf in an external search coil. This information is needed in prediction of motor speed from the external search coil induced voltage.
Keysan, Ozan, Ertan, Hulusi Bülent
core   +3 more sources

A novel online method for locating fault coil in direct‐drive permanent magnet synchronous motor with inter‐turn short‐circuit fault using search coil array

open access: yesIET Electric Power Applications, 2023
This study presents a fault coil localisation approach for a direct‐drive permanent magnet synchronous motor (DDPMSM) with inter‐turn short‐circuit fault (ISF) using the search coil (SC) array.
Hao Chen   +6 more
doaj   +1 more source

Genetic Algorithm for TMS Coil Position Optimization in Stroke Treatment

open access: yesFrontiers in Public Health, 2022
Transcranial magnetic stimulation (TMS), a non-invasive technique to stimulate human brain, has been widely used in stroke treatment for its capability of regulating synaptic plasticity and promoting cortical functional reconstruction.
Shujie Lu   +5 more
doaj   +1 more source

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