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http://dx.doi.org/10.4283/JKMS.2002.12.4.149

Self Compensating Flux-gate Magnetometer Using Microcomputer  

Ga, E.M. (한남대학교 물리학과)
Son, D. (한남대학교 물리학과)
Son, D.H. (국방과학연구소)
Publication Information
Journal of the Korean Magnetics Society / v.12, no.4, 2002 , pp. 149-153 More about this Journal
Abstract
Flux-gate magnetometer has been still used for low field magnetic field measurement with portability, low power consumption, and high reliability. In many applications, flux-gate magnetometer measures not absolute values but changes of the earth magnetic field. For the eia magnetic field change measurements, we have constructed a high sensitive 3-axis flux-gate magnetometer of which measuring ranges is ${\pm}$1000 nT and noise level is 5pT/√㎐ at 1 ㎐. Using this magnetometer, we can compensate the earth magnetic field of ${\pm}$50,000 nT with successive approximation methods using microcomputer. After earth magnetic field compensation, we could measure earth magnetic field changes with ${\pm}$100 nT measuring ranges.
Keywords
flux-gate; Magnetometer; Flux-gate magnetometer; Low magnetic field; Earth magnetic fields;
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  • Reference
1 H. Aschenbrenner, Hoch frequenztechnik Und Electroakustik, 44, 2(1934)
2 F. Forster and Z. Metallkde, 46, 358(1955)
3 D. I. Gordon, 'Methods of Measuring the Magnetic Field', IEEE Trans. on Magn., MAG-8, 48(1972)   DOI
4 W. F. Stuart, 'Earth Field Magnetometery', Rep. Prog. Phys., 35, 803(1972)   DOI   ScienceOn
5 Malmstadt and Enke, 'Electronics and Instrumentation for Scientist', Benjamin/Cumimngs Publishing Co., Menlo Park, 383(1981)