書誌事項
- タイトル別名
-
- Noise Characterization of Coil Detection Type Magnetic Field Sensor Utilizing Pulse Excitation Amorphous Wire Magneto-Impedance Element
- パルスレイジアモルファスワイヤ ジキ インピーダンス ソシ オ モチイタ コイル ケンシュツガタ ジカイ センサ ノ ノイズ トクセイ ヒョウカ
この論文をさがす
抄録
In this experiment, we investigated noise characteristics of a pulse magneto-impedance sensor which is based on an amorphous magnetic wire with a pickup coil. For a helical static magnetization, the ac current i passing the wire induces a coil voltage Vc in the coil around the wire. The pulsed excitation, combining both high and low frequency harmonic, produces the voltage Vc with dc current biasing. We describe improvements of pulse excitation conditions for an amorphous magnetic wire to reduce magnetic noises. The relation between the time interval of a current pulse train T and magnetic noises was investigated. The magnetic noise is suppressed clearly when T is smaller than 1.5 μs for pulse width 10 ns. Under the optimal conditions, the rms noise of 1-cm-long an amorphous wire magneto-impedance sensor with 600 turns of the pickup was estimated as 1pT/Hz1/2M at 20 Hz∼500 Hz.
収録刊行物
-
- Journal of the Magnetics Society of Japan
-
Journal of the Magnetics Society of Japan 34 (4), 533-536, 2010
公益社団法人 日本磁気学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282680262151680
-
- NII論文ID
- 10026683573
- 20000491203
-
- NII書誌ID
- AA12297999
-
- ISSN
- 18822932
- 18822924
-
- NDL書誌ID
- 10770668
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可