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Diagnostic tests using near-infrared laser absorption spectroscopy 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01N-021/35
출원번호 US-0827209 (1992-01-29)
발명자 / 주소
  • Cooper David E. (Palo Alto CA) Carlisle Clinton B. (Menlo Park CA) Riris Haris (Menlo Park CA)
출원인 / 주소
  • SRI International (Menlo Park CA 02)
인용정보 피인용 횟수 : 96  인용 특허 : 0

초록

RF modulation spectroscopy of a near infrared laser diode source is used to determine the amount of a target substance in a breath sample. In this type of modulation the laser output is modulated to produce sidebands displaced from the laser carrier by the modulation frequency. The modulated beam is

대표청구항

Apparatus for determining information regarding the presence of first and second isotopic species in a molecular gas sample comprising: a sample cell for holding the gas sample to be analyzed; a reference cell for holding a volume of gas having a known ratio of the first and second isotopic species;

이 특허를 인용한 특허 (96)

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