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Observation of Water Level and Temperature Properties by using a Giant Magnetoresistance-Spin Valve Film

Journal of Magnetics, Volume 17, Number 3, 30 Sep 2012, Pages 214-218

Jong-Gu Choi (Department of Oriental Biomedical Engineering, Sangji University), Kwang-Jun Park (Department of Oriental Biomedical Engineering, Sangji University), Sang-Suk Lee *

(Department of Oriental Biomedical Engineering, Sangji University)

Abstract

The water level and temperature properties for the cooling system of potassium titanyl phosphate laser systems were observed. The middle point of the GMR-SV magnetoresistance curve is set in the neighborhood of high magnetic sensitivity (2.8 %/Oe). The experimental results for resistance dependence on water height and temperature showed linear regions with rates of 0.4 Ω/mm and 0.1 Ω/°C, respectively. The proposed results were found to be for adjusting the water level and temperature in the laser cooling system.

Keywords: GMR-SV (giant magnetoresistance-spin valve) film; water level and temperature; cooling system; sensor unit; MR (magnetoresistance) curve

DOI: http://dx.doi.org/10.4283/JMAG.2012.17.3.214

Full Text: PDF

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