infrared gas analyzer and infrared gas analysis method

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C250S339130

Reexamination Certificate

active

11232657

ABSTRACT:
There are provided an infrared gas analyzer of a simple configuration, capable of taking measurements with high precision when using an infrared light source excellent in thermal responsiveness, and capable of ON/OFF operations at high speed, and an infrared gas analysis method using the same. The infrared gas analyzer having a sample cell into which a sample gas is distributed, for detecting concentration of a measuring target component of the sample gas by taking advantage of variation in absorption amount of infrared rays having passed through the sample cell, comprising a first infrared light source for irradiating the sample cell with first infrared rays, a second infrared light source having a response characteristic equal to that of the first infrared light source, a detector for detecting a difference between the first infrared rays emitted from the first infrared light source, and having passed through the sample cell, and second infrared rays emitted from the second infrared light source, a light source drive controller for synchronously driving the first and second infrared light sources, respectively, and a measurement controller for providing the light source drive controller with instructions for respective drive amounts of the first and second infrared light sources while receiving an output signal from the detector, thereby generating a measurement output corresponding to the concentration of the measuring target component of the sample gas.

REFERENCES:
patent: 3180984 (1965-04-01), Fertig et al.
patent: 3560735 (1971-02-01), Strange et al.
patent: 3731092 (1973-05-01), Freilino
patent: 4180733 (1979-12-01), Ueda
patent: 4271124 (1981-06-01), Speeter
patent: 4885469 (1989-12-01), Yamagishi et al.
patent: 5332901 (1994-07-01), Eckles et al.
patent: 5572032 (1996-11-01), Fujiwara et al.
patent: 5764354 (1998-06-01), Aidam et al.
patent: 5818598 (1998-10-01), Kebabian
patent: 6452182 (2002-09-01), Zochbauer et al.
patent: 1 276 194 (1972-06-01), None
patent: 2 218 804 (1989-11-01), None
patent: 3174069 (2001-03-01), None
patent: 2001-221737 (2001-08-01), None
patent: 2002-131230 (2002-05-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

infrared gas analyzer and infrared gas analysis method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with infrared gas analyzer and infrared gas analysis method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and infrared gas analyzer and infrared gas analysis method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3936838

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.