Linear thermopile array for fast searching

Nami Shibata, Masaki Hirota, Fuminori Satou, Hidemi Yasui, Shinichi Morita

研究成果: Contribution to journalConference article査読

1 被引用数 (Scopus)

抄録

A linear thermopile array with characteristics of high responsivity, fast response and low cost has been developed for use in searching for and detecting heat-radiating objects. The thermopile is fabricated by means of a silicon surface micromachining, compatible Si CMOS process and a lift-off technique, which results in a precisely patterned Au black absorption layer. The dynamic signal-to-noise ratio is proposed as a new figure of merit for evaluating thermal infrared sensors and is used to design the thermopile configuration so as to obtain optimum responsivity and thermal time constant. The newly fabricated thermopile array is composed of a zigzag arrangement of two rows of seven infrared sensing elements and achieves responsivity of 230 V/W and a thermal time constant of 0.5 msec. The array, incorporating an optical system with a 30-mm-diameter lens and an focal ratio (F/#) of 0.74, provides a dynamic S/N ratio of 6.9 at a scanning speed of 1,000 m/s and a distance of 80 m for a target with a background temperature difference of 25 °C.

本文言語英語
ページ(範囲)546-555
ページ数10
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
3698
DOI
出版ステータス出版済み - 1 1 1999
外部発表はい
イベントProceedings of the 1999 Infrared Technology and Applications XXV - Orlando, FL, USA
継続期間: 4 5 19994 9 1999

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

フィンガープリント

「Linear thermopile array for fast searching」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル