Measuring DC Fields as Low as 0.5 nT by Using Bi-2223 Polycrystalline Superconductors

Topal, Ugur; Alikma, Fatma; Coker, E.

doi:10.1007/s10948-012-1887-4

Measuring DC Fields as Low as 0.5 nT by Using Bi-2223 Polycrystalline Superconductors

Atıf İçin Kopyala

Topal U., Alikma F., Coker E. G.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, cilt.26, sa.5, ss.1831-1835, 2013 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 26 Sayı: 5
Basım Tarihi: 2013
Doi Numarası: 10.1007/s10948-012-1887-4
Dergi Adı: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.1831-1835
Marmara Üniversitesi Adresli: Hayır

Özet

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.