Method for signal detection in a gas analysis system

    公开(公告)号:US09863874B2

    公开(公告)日:2018-01-09

    申请号:US15274305

    申请日:2016-09-23

    Abstract: A method for signal detection with a gas analysis system (1, 1′) includes a radiation source (3); a gas measuring section (9) containing gas to be measured; a Fabry-Perot interferometer (13); a thermal sensor (17) configured to cause a change in voltage between electrodes with electromagnetic radiation falling thereon and arranged such that radiation released by a second interferometer mirror falls on the thermal sensor. The method includes irradiating the gas measuring section with radiation source radiation, continuously increasing or decreasing a distance of interferometer mirrors during a generating of time signal pulses at a constant period of time from one another. After a predefined number of time signal pulses, the voltage generated between the electrodes is detected and stored as a measured signal value. After a further predefined number of time signal pulses, the voltage generated between the electrodes is detected again and stored as a measured signal value.

    ATOMIC ABSORPTION PHOTOMETER AND ATOMIC ABSORPTION MEASUREMENT METHOD

    公开(公告)号:US20170322147A1

    公开(公告)日:2017-11-09

    申请号:US15525327

    申请日:2014-11-11

    Inventor: Kazuo SUGIHARA

    CPC classification number: G01N21/3103 G01J3/10 G01J3/42 G01N2021/3111

    Abstract: There are provided an atomic absorption photometer and an atomic absorption measurement method which can easily perform background correction in a short time period by using a plurality of types of methods while suppressing the amount of samples consumed. Background correction is performing by using each of the D2 lamp method, the Zeeman method, and a self-reversal method, according to measurement data in each of measurement periods T41 to T46 obtained in one data acquisition cycle. Background correction is performed on the common measurement data (atomic absorption data) obtained in the atomic absorption measurement period T41, by using the measurement data (background data) obtained in each of the first to third background measurement periods T44, T46, and T42.

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