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A new "wireless" search-coil system
Proceedings of the 2008 symposium on Eye tracking research & applications - ETRA '08, 2008The scleral search-coil system is the accepted standard for precise and accurate recording of eye movements in the lab and clinic. One of the drawbacks of this system is the connecting wire that leads from the eye coil to the associated electronics; this wire causes irritation to the subject and has a tendency to break during experiments.
Dale Roberts, Mark Shelhamer, Aaron Wong
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Scleral Search Coils Influence Saccade Dynamics
Journal of Neurophysiology, 2002The scleral search coil technique is commonly used for recording eye movements. The goal of this paper is to investigate to what extent the placement of scleral search coils onto the eyes influences the kinematics of saccades. To that end saccadic eye movements of human subjects were recorded with an infrared video system, while they wore coils and we
Rosenthal, G, van der Geest, Jos
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On the measurement of the effective area of a search coil
Proceedings of the Physical Society, 1945A condenser null-method for the determination of the effective area of search coil is described. The underlying principle is to compare the area of the unknow coil with a calculable area, the two coils being used alternately in a powerful, constant magnetic field, of which the region of uniform intensity has been extended by the use of pole-pieces with
H Mikhail, Y L Yousef
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OGO Search Coil Magnetometer Experiments
IEEE Transactions on Geoscience Electronics, 1969The OGO triaxial search coil magnetometer measures naturally occurring magnetic fluctuations between 0.01 Hz and ~1000 Hz in the space around the earth. The instrument design is described and the design rationale discussed. The results of the observations on the first five OGO spacecraft in the magnetosphere, magnetotail, magnetosheath, and ...
Allan M. A. Frandsen +2 more
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An Analysis of Ocular Counter-rolling Measured with Search Coils
Acta Oto-Laryngologica, 1989Ocular counter-rolling (OCR) was studied by using a scleral search coil magnetic system in normal subjects and in pathological cases. Normal ocular counter-rolling was 2.7 degrees-7 degrees when the head was tilted 10 to 30 degrees. In most cases of benign paroxysmal positional vertigo, the OCR to the ipsilateral side was reduced, while that to the ...
S, Takemori, M, Tanaka, H, Moriyama
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Search of Short Circuits in the Superconducting Coils of the ATLAS Detector
IEEE Transactions on Appiled Superconductivity, 2005The detection of a short circuit inside the superconducting coils of the ATLAS detector after their installation in the casing is mandatory for the mechanical and electrical safety during a fast discharge of the magnet. The detection of a short circuit by means of a capacitor discharge becomes very difficult once the coils are integrated inside the ...
E. Acerbi +4 more
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Simulation Analysis of Micro Coils for the Fabrication of Micro-scaled Search Coil Magnetometer
2016 International Conference on Computer and Communication Engineering (ICCCE), 2016Magnetic field detection has been widely accepted in many applications such as military systems, outer space exploration and even in medical diagnosis and treatment. Low magnetic field detection is particularly important in tracking of magnetic markers in digestive tracks or blood vessels.
Tengku Muhammad Afif Bin Tengku Azmi +1 more
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Monte-Carlo Search for Snakes and Coils
2012The “Snake-In-The-Box” problem is a hard combinatorial search problem, first described more than 50 years ago, which consists in finding longest induced paths in hypercube graphs. Solutions to the problem have diverse and some quite surprising practical applications, but optimal solutions are known only for problems of small dimension, as the search ...
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The Use of Search Coils for Magnetic Measurements
International Journal of Electrical Engineering & Education, 1982The basic principle of search coils is explained by reference to the integral form of Maxwell's equation. The salient features of instrumentation, necessary for search coil applications, are discussed, followed by a brief description of a few typical examples of magnetic measurements by a variety of search coils.
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Research of Core Characteristics of Search Coil Magnetometer
Advanced Materials Research, 2012In this paper, the theory of apparent permeability and effective permeability of the core is described. The apparent permeability with coil in different positions of the core is investigated and simulated by HFSS. The best location of the coil is determined according to the curves of the apparent permeability.
Qun Yu, Hou Bo Zhang, Guan Nan Lin
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