Dergi makalesi Açık Erişim
Topal, Ugur; Alikma, Fatma; Coker, E. Gulce
In this study a novel type of magnetometer capable of direct measurement of DC fields as low as 0.5 nT was described. The second harmonic voltage generated by polycrystalline superconductors inserted in AC and DC fields was used as sensor signal. The experiments have shown that a 0.5 nT DC field can be detectable by using Bi-2223 superconductors as the core material. The Bi-2223 reveals better sensitivity compared to the other high-T-c cuprates. Besides, the sensor works in a wide dynamical range (10(5) orders in magnitude), which increases its potential application areas.
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