Results 141 to 150 of about 190,337 (189)

Scleral Search Coils Influence Saccade Dynamics

Journal of Neurophysiology, 2002
The 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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An orientable search coil

Physics Education, 2016
We provide a design for a low cost orientable search coil that can be used to investigate the variation of magnetic flux with angle. This experiment is one of the required practical activities in the current A level physics specification for the AQA examination board in the UK.
P J Holt, M Poblocki
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A new "wireless" search-coil system

Proceedings of the 2008 symposium on Eye tracking research & applications - ETRA '08, 2008
The 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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OGO Search Coil Magnetometer Experiments

IEEE Transactions on Geoscience Electronics, 1969
The 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, Robert E. Holzer, Edward J. Smith   +2 more
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Flat/film infinity coils and backside defect searching

International Journal of Applied Electromagnetics and Mechanics, 2016
Previously, we have proposed an infinity coil as a high sensibility ECT sensor. This paper has evaluated a possibility of the backside defect searching by the low frequency excitation of a modified infinity coil whose exciting coils are the flat/film shape to fit to the curverved test targets.
Hamanaka, Shunichi, Saito, Yoshifuru, Marinova, Iliana, Ohuch, Manabu, Kojima, Takaharu   +4 more
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Search coil based transformer inter-turn fault detection

2014 Eighteenth National Power Systems Conference (NPSC), 2014
Detection of transformer inter-turn fault at early stage is essential for increasing life of transformer and avoiding economical impacts. This paper presents a novel approach to detect transformer inter-turn fault by search coil induced voltage analysis. A healthy winding is associated with symmetrical leakage flux pattern.
P. A. Venikar, M. S. Ballal, B. S. Umre, H. M. Suryawanshi   +3 more
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Analytical Optimization of Low-Frequency Search Coil Magnetometers

IEEE Sensors Journal, 2012
An analytical optimization is proposed for the sensitivity threshold of low-frequency search coil magnetometers employing disk-shape flux concentrators. The optimal diameters of the core and the wire are found for a given set of the optimization parameters: frequency, search coil volume and aspect ratio, relative permeability of the core and the flux ...
A. Grosz, E. Paperno
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