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Title: A design of orthogonal fluxgate sensor
Authors: Li, X.P. 
Fan, J. 
Ding, J. 
Chiriac, H.
Qian, X.B. 
Yi, J.B. 
Issue Date: 2006
Citation: Li, X.P., Fan, J., Ding, J., Chiriac, H., Qian, X.B., Yi, J.B. (2006). A design of orthogonal fluxgate sensor. Journal of Applied Physics 99 (8) : -. ScholarBank@NUS Repository.
Abstract: A design of orthogonal fluxgate sensor is presented, in which the sensing element consists of multiple number of cores of soft ferromagnetic thin wires closely packed together. An orthogonal fluxgate sensor with the sensing element formed by a glass-coated amorphous wire of 16 μm in diameter and another orthogonal fluxgate sensor with the sensing element formed by 16 closely packed glass-coated amorphous wires of 16 μm in diameter were constructed and tested. In the tests, the excitation currents passing through the sensing elements for both sensors were set in such a way that each of the amorphous wires in the sensing elements was driven by a current of equal magnitude. The current excitation frequency for each sensing element was determined such that the sensor gave the maximum sensing output. The results showed that under the excitation current of optimum frequencies the sensitivity of the 16-core sensor was 65 times higher than that of the single-core sensor, in a trend of increasing exponentially against the increase of the number of cores in the sensing element. © 2006 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.2172210
Appears in Collections:Staff Publications

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