Please use this identifier to cite or link to this item: http://essuir.sumdu.edu.ua/handle/123456789/34967
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Title Detecting and Estimating Magnetic Fluid Properties by a Needle- Type GMR Sensor
Authors Shirzadfar, H.
Kourtiche, D.
Haraszczuk, R.
Nadi, M.
Yamada, S.
Keywords GMR Sensor
Magnetic Fluid
Helmholtz Coil
Weight Density
Permeability
Type Conference Papers
Date of Issue 2012
URI http://essuir.sumdu.edu.ua/handle/123456789/34967
Publisher Sumy State University
License
Citation Detecting and Estimating Magnetic Fluid Properties by a Needle- Type GMR Sensor / H. Shirzadfar, D. Kourtiche, R. Haraszczuk et al. // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No2. - 02NNBM29
Abstract Magnetic fluid or magnetic liquid are colloidal solutions of ultra-fine magnetic materials. Ferromagnet-ic materials consist of magnetic or other compound containing iron, nickel or cobalt, by a particle size of 5 to 50 nanometers, generally in a superparamagnetic, ferromagnetic or diamagnetic state. Magnetic fluids have a unique combination of strength and ability to interact with the magnetic field. This paper proposes to estimate and detect magnetic fluid weight density (concentration as low as 1%) by giant magnetore-sistance (GMR) sensor. The high sensitivity of the sensor is around 11 μV/μT. We propose to use it for bio-applications to characterize magnetic microfluides. For this application a Helmholtz coil was simulated and fabricated to make more uniform magnetic flux density. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34967
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