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특허 상세정보

Apparatus and method for measuring decay in intensity of electromagnetic radiation in multipass spectrometry

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01N-021/61   
미국특허분류(USC) 356/437; 356/440
출원번호 US-0030317 (2000-04-14)
우선권정보 GB-0009319 (1999-04-22)
국제출원번호 PCT//GB00/01431 (2001-10-19)
§371/§102 date 20011019 (20011019)
국제공개번호 WO00//65328 (2000-11-02)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Leydig, Voit &
인용정보 피인용 횟수 : 6  인용 특허 : 12
초록

An apparatus for measuring decay in intensity of electromagnetic radiation passing through a radiation-absorbent sample due to absorption of radiation by the sample is disclosed which includes a source of electromagnetic radiation having a wavelength within an absorption band of the sample and a plurality of partially-reflective specular surfaces which are spaced apart from each other along a predetermined path through the sample, each specular surface separating the incident radiation into a reflected part which follows the predetermined path and an unr...

대표
청구항

1. An apparatus for measuring decay in intensity of electromagnetic radiation passing through a radiation-absorbent sample due to absorption of radiation by the sample, comprising a source of electromagnetic radiation having a wavelength within an absorption band of the sample,partially-reflective means for partially reflecting said electromagnetic radiation at successive positions which are spaced apart from each other along a predetermined path along a single geometrical ray through the sample, said partially-reflective means being effective at each sa...

이 특허에 인용된 특허 (12)

  1. Pipino Andrew C. R.. Broad band intra-cavity total reflection chemical sensor. USP1998115835231.
  2. Zare Richard N. ; Martin Juergen,DEX ; Paldus Barbara A.. Deflecting light into resonant cavities for spectroscopy. USP1998095815277.
  3. Atkinson George H. ; Mehdizadeh Esmail. Diode laser-pumped laser system for ultra-sensitive gas detection via intracavity laser spectroscopy (ILS). USP1998055747807.
  4. Aagard Roger L. (Richfield MN). Folded path absorption cell gas sensor. USP1982034322621.
  5. Bender Gerald M. ; Shawgo Loyal B.. Gas concentration monitoring system. USP2001016181426.
  6. Atkinson George H.. Intracavity laser spectroscopy for high sensitivity detection of contaminants in gas. USP1998115841533.
  7. Stabile Paul J. ; Ludington David Norman ; York Pamela Kay ; Rosen Arye ; Cherukuri Satyam Choudary ; Zanzucchi Peter John ; Heaney Paul. Massively parallel detection. USP1998125854684.
  8. Wong Jacob Y. (Santa Barbara CA). Multi-channel gas sample chamber. USP1993065222389.
  9. Bien Fritz (Concord MA) Gersh Michael (Bedford MA) Goldstein Neil (Belmont MA) Lee Jamine (Burlington MA). Multi-pass optical cell species concentration measurement system. USP1996015485276.
  10. Harvey Robert J. (Capistrano Beach CA). Multiple-path gas-absorption cell. USP1993065220402.
  11. Wong Jacob Y.. Passive and active infrared analysis gas sensors and applicable multichannel detector assembles. USP1998025721430.
  12. Atkinson George H.. Ultra-sensitive detection of contaminants in corrosive gas via intracavity laser spectroscopy (ILS). USP1998045742054.