Compensation of the thermal drift in the sensitivity of fundamental-mode orthogonal fluxgates

Anton Plotkin, Eugene Paperno, Alexander Samohin, Ichiro Sasada

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A method is suggested that reduces the temperature coefficient of the sensitivity of fundamental-mode orthogonal fluxgates by an order of magnitude. For the background magnetic fields greater than 20 μT, the method provides even better reduction, down to 100 ppm°C, which is comparable with the temperature coefficient of conventional parallel-type fluxgates operated in closed-loop configuration. The fluxgate prototype has demonstrated a 20-fold reduction of the thermal drift in its sensitivity. The suggested method is solely based on the processing of signals generated by fundamental-mode orthogonal fluxgates in open-loop configuration and does not require any additional hardware. This makes the open-loop fundamental-mode orthogonal fluxgates competitive with closed-loop parallel-type ones in terms of both resolution and accuracy, while still keeping them simpler than the parallel fluxgates.

Original languageEnglish
Article number08B305
JournalJournal of Applied Physics
Volume99
Issue number8
DOIs
Publication statusPublished - May 25 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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