アモルファスワイヤＭＩヘッド磁石変位センサによるまばたき波形の検出と眠気度計測

• 曽根 威之

  名古屋大学工学部

• 安藤 誠吾

  名古屋大学工学部

• 毛利 佳年雄

  名古屋大学工学部

書誌事項

タイトル別名

• Detecting Blinks and Estimating Sleepiness by Using an Magnet-Displacement Sensor with an Amorphous MI Element.

抄録

Two highly sensitive magnet-displacement sensors with a resonant-multivibrator and a Colpitts oscillator, respectively,were constructed by using amorphous wire magnetoimpedance elements. The sensor output is independent of the magnetic pole sign on account of the magnetoimpedance characteristics, which allow highly operable measurement of eyelid motions such as blinks. Small magnets were attached to the eyelids of several subjects, and the movements of the magnets when the subjects blinked were detected by the sensor. Sleepiness was clearly estimated by measuring the length of time that the eyelids were closed during blinking, the results were independent of subjects.

収録刊行物

• 日本応用磁気学会誌

  日本応用磁気学会誌 20 (2), 621-624, 1996

  公益社団法人 日本磁気学会

キーワード

• magneto-displacement sensor
• magneto-impedance
• amorphous wire
• sleepiness
• blink
• half width

詳細情報

• CRID: 1390282680070286208
• NII論文ID: 20000346849
• NII書誌ID: AN0031390X
• DOI: 10.3379/jmsjmag.20.621
• ISSN: 18804004
• ISSN: 02850192
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可