抄録
Orthogonal fluxgate in fundamental mode has low noise output but its offset is often very large. A method has been proposed to compensate the offset consisting in periodical switching of the dc bias of the excitation and subtraction of the signal obtained with positive and negative dc bias. This method has been already proved to effectively suppress the offset, however no investigation has been made for the temperature drift of the offset. In this paper we show that this method can be used also to compensate the drift of the offset for a wide temperature range: compensated output shows about 120 nT maximum variation of the offset in -90°C to +90°C temperature range, making orthogonal fluxgate in fundamental mode competitive to cheap parallel fluxgate. Moreover the dependence of the open loop sensitivity on the temperature is also investigated: no substantial drop of the sensitivity is observed in the same temperature range.
| 元の言語 | 英語 |
|---|---|
| 記事番号 | 6332559 |
| ページ（範囲） | 4103-4106 |
| ページ数 | 4 |
| ジャーナル | IEEE Transactions on Magnetics |
| 巻 | 48 |
| 発行部数 | 11 |
| DOI | |
| 出版物ステータス | 出版済み - 10 29 2012 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
これを引用
Temperature dependence of offset and sensitivity in orthogonal fluxgate operated in fundamental mode. / Butta, Mattia; Sasada, Ichiro; Janosek, Michal.
：: IEEE Transactions on Magnetics, 巻 48, 番号 11, 6332559, 29.10.2012, p. 4103-4106.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Temperature dependence of offset and sensitivity in orthogonal fluxgate operated in fundamental mode
AU - Butta, Mattia
AU - Sasada, Ichiro
AU - Janosek, Michal
PY - 2012/10/29
Y1 - 2012/10/29
N2 - Orthogonal fluxgate in fundamental mode has low noise output but its offset is often very large. A method has been proposed to compensate the offset consisting in periodical switching of the dc bias of the excitation and subtraction of the signal obtained with positive and negative dc bias. This method has been already proved to effectively suppress the offset, however no investigation has been made for the temperature drift of the offset. In this paper we show that this method can be used also to compensate the drift of the offset for a wide temperature range: compensated output shows about 120 nT maximum variation of the offset in -90°C to +90°C temperature range, making orthogonal fluxgate in fundamental mode competitive to cheap parallel fluxgate. Moreover the dependence of the open loop sensitivity on the temperature is also investigated: no substantial drop of the sensitivity is observed in the same temperature range.
AB - Orthogonal fluxgate in fundamental mode has low noise output but its offset is often very large. A method has been proposed to compensate the offset consisting in periodical switching of the dc bias of the excitation and subtraction of the signal obtained with positive and negative dc bias. This method has been already proved to effectively suppress the offset, however no investigation has been made for the temperature drift of the offset. In this paper we show that this method can be used also to compensate the drift of the offset for a wide temperature range: compensated output shows about 120 nT maximum variation of the offset in -90°C to +90°C temperature range, making orthogonal fluxgate in fundamental mode competitive to cheap parallel fluxgate. Moreover the dependence of the open loop sensitivity on the temperature is also investigated: no substantial drop of the sensitivity is observed in the same temperature range.
UR - http://www.scopus.com/inward/record.url?scp=84867789644&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84867789644&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2012.2202383
DO - 10.1109/TMAG.2012.2202383
M3 - Article
AN - SCOPUS:84867789644
VL - 48
SP - 4103
EP - 4106
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 11
M1 - 6332559
ER -