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특허 상세정보

Non-dispersive infrared gas sensor

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01J-005/02   
미국특허분류(USC) 250/343; 250/345; 250/33912; 250/33913; 250/3383
출원번호 US-0574578 (2000-05-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Skjerven Morrill LLP
인용정보 피인용 횟수 : 54  인용 특허 : 13
초록

An NDIR sensor includes a cylindrical metallic tube, a printed circuit board platform that fits into one end of the tube, a diffusion filter that fits into the opposite end of the tube, and an optical system. The optical system includes an infrared source on the platform, a mirror on the inner wall of the tube so as to reflect and focus the infrared light from the infrared source, and a detector assembly that receives the infrared light after reflection. The gas sensor may further include a partition between the infrared source and the detector assembly,...

대표
청구항

1. A gas sensor comprising:a tube having an inner wall that includes a reflective portion; a platform in a first end of the tube; a filter in a second end of the tube, wherein the filter allows gas to enter through the filter into the tube; an infrared source on the platform; and a detector assembly on the platform and positioned to receive infrared light from the infrared source after reflection from the reflective portion of the inner wall.

이 특허를 인용한 특허 피인용횟수: 54

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