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Título: | A low-noise fundamental-mode orthogonal fluxgate magnetometer |
Autor: | Vázquez Villalabeitia, Manuel CSIC ORCID CVN | Fecha de publicación: | 2014 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | IEEE Transactions on Magnetics 50(5): 1-3 (2014) | Resumen: | We introduce a low-noise fundamental-mode orthogonal fluxgate magnetometer for use in magnetotelluric surveys. The fluxgate makes use of rapidly quenched amorphous wire having vanishing value of saturation magnetostriction constant (λ ≈ 10-7) and displaying ultrasoft magnetic behavior. The design of the fluxgate consists of multiple U-shaped sensor heads where pairs of wire pieces are inserted as core material. The novelty of this system resides in the use of a quadruple sensor head. Digital signal processing with effective electronic noise suppression allows this magnetometer to achieve a noise floor of 0.8 pT/Hz1/2 for frequencies above 10 Hz. The possibilities of in situ application are discussed and guidelines on noise suppression strategies are given. © 2013 IEEE. | URI: | http://hdl.handle.net/10261/98759 | DOI: | 10.1109/TMAG.2013.2292834 | Identificadores: | doi: 10.1109/TMAG.2013.2292834 issn: 0018-9464 |
Aparece en las colecciones: | (ICMM) Artículos |
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