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    • 3. 发明授权
    • Infrared type gas analyzer
    • 红外型气体分析仪
    • US5894128A
    • 1999-04-13
    • US917474
    • 1997-08-26
    • Akioki Nakamori
    • Akioki Nakamori
    • G01N21/03G01N21/3518G01N21/61
    • G01N21/3518
    • An infrared type gas analyzer is formed of a measuring cell for receiving a gas to be measured; an infrared light source for irradiating the gas in the measuring cell; a correlation filter disposed adjacent to the measuring cell; and a sensor for detecting infrared light ejected from the infrared light source and passing through the correlation filter and the measuring cell to analyze the gas in the measuring cell. A correction filter is disposed on a portion of the correlation filter for correction or calibration of the gas analyzer. Thus, the infrared type gas analyzer has a simple structure and can perform a simplified correction without complicated operation.
    • 红外型气体分析仪由用于接收待测气体的测量池形成; 用于照射测量池中的气体的红外光源; 设置在与测量单元相邻的相关滤波器; 以及传感器,用于检测从红外光源射出并通过相关滤光器和测量单元的红外光,以分析测量单元中的气体。 校正滤波器设置在相关滤波器的一部分上,用于校正或校准气体分析器。 因此,红外线型气体分析仪具有简单的结构,可以进行简单的校正而不需要复杂的操作。
    • 4. 发明授权
    • Method of and apparatus for measuring oxygen concentration with limiting
current oxygen sensor
    • 用限流电氧传感器测量氧浓度的方法和设备
    • US5270009A
    • 1993-12-14
    • US942407
    • 1992-09-09
    • Akioki NakamoriMasaru Kozakura
    • Akioki NakamoriMasaru Kozakura
    • G01N27/41G01N27/406G01N27/00
    • G01N27/4065
    • Relation of the degree of interference to interference concentration is previously stored with respect to at least one interference gas influencing an oxygen indicated value of a sample gas, so that interference corresponding to interference gas concentration of the sample gas is corrected on the basis of the stored relation when oxygen concentration is calculated from a detection signal of an oxygen sensor and outputted. Concentration of the interference gas, with respect to which the relation of the degree of interference is stored, is manually inputted in measurement, or previously set. When the concentration of the interference gas is previously set, such concentration is made changeable by manual input. Thus, even if the sample gas contains an interference gas in high concentration as in the case of an exhaust gas containing highly concentrated CO.sub.2 gas, it is possible to accurately measure oxygen concentration of the sample gas.
    • 相对于影响样品气体的氧气指示值的至少一种干扰气体,预先存储干扰浓度的关系,从而基于所存储的样本气体来校正对应于样品气体的干扰气体浓度的干扰 当从氧传感器的检测信号计算氧浓度并输出时,关系。 干扰气体的集中,相对于存储干涉程度的关系,在测量或预先设定的情况下手动输入。 当预先设定干扰气体的浓度时,可以通过手动输入来改变浓度。 因此,即使在含有高浓度CO 2气体的废气的情况下,即使样品气体含有高浓度的干扰气体,也能够精确地测定样品气体的氧浓度。