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    • 3. 发明申请
    • METHOD AND APPARATUS FOR MEASURING DENSITY
    • 测量密度的方法和装置
    • US20110019193A1
    • 2011-01-27
    • US12922898
    • 2009-04-15
    • Minoru DannoKenji MutaMasazumi TanouraMasatoshi KatsukiYuuko Ujihara
    • Minoru DannoKenji MutaMasazumi TanouraMasatoshi KatsukiYuuko Ujihara
    • G01N15/06G01N21/27
    • G01N21/39G01J3/4338G01N21/274G01N21/3504G01N21/534G01N21/85G01N2201/06113
    • Disclosed are method and apparatus for measuring density, that can simultaneously measure gaseous substance density and solid particulate material density and further can simultaneously measure the densities of a plurality of materials such as black smoke, white smoke, and water vapor in the solid particulate material in a simple and reliable manner. The method for measuring density comprises applying a laser beam having an absorption wavelength inherent in a gaseous material contained in an object to be measured, to the object to detect a light transmittance and a light absorption amount and detecting the density of gaseous materials in the object and the density of solid particulate materials in the object. The relationship between the density of a plurality of kinds of solid particulate materials including black smoke and white smoke and a laser beam attenuation level in each absorption wavelength is preset. Laser beams having a plurality of respective absorption wavelengths are applied to the gaseous substance to be measured. The attenuation levels of the applied laser beams having the plurality of absorption wavelengths are measured. The measured attenuation levels are compared with the attenuation levels calculated based on the present relationship to calculate the densities of the plurality of kinds of solid particulate materials.
    • 公开了用于测量密度的方法和装置,其可以同时测量气态物质密度和固体颗粒材料密度,并且还可以同时测量固体颗粒材料中多种材料如黑烟,白烟和水蒸气的密度 一种简单可靠的方式。 测量密度的方法包括将包含在待测物体中的气态材料中具有固有吸收波长的激光束施加到物体上,以检测透光率和光吸收量,并检测物体中气态物质的密度 以及物体中固体颗粒材料的密度。 预先设定包括黑烟和白烟的多种固体颗粒材料的密度与每种吸收波长中的激光束衰减水平之间的关系。 将具有多个相应吸收波长的激光束施加到待测量的气态物质上。 测量具有多个吸收波长的所施加的激光束的衰减水平。 将测量的衰减水平与基于当前关系计算的衰减水平进行比较,以计算多种固体颗粒材料的密度。
    • 10. 发明授权
    • Gas concentration flux measuring device
    • 气体浓度通量测量装置
    • US07365352B2
    • 2008-04-29
    • US10570344
    • 2004-09-28
    • Kenji MutaMasazumi TanouraKo Nakaya
    • Kenji MutaMasazumi TanouraKo Nakaya
    • G01N15/06G01N21/49G01N21/85
    • G01J3/433G01N15/06G01N21/21G01N21/31
    • A gas flux measuring device measures a region, such as a forest, as a measuring object with no influence by concomitants and with high responsiveness and excellent measuring stability. The device includes a laser beam source, laser output controller, wavelength modulation controller, first light receiver, first direct current component detector, first wavelength modulation demodulator, optical system, reference cell, second light receiver, second direct current component detector, second wavelength modulation demodulator, third wavelength modulation demodulator, analyzer, adder, temperature measurement and pressure measurement. A flow velocity measuring device directly measures horizontal 2-directional flow velocity components and a vertical directional flow velocity component of a gas flow in the measuring region and puts out these measurement signals into the analyzer. Based on the signals inputted from the flow velocity measuring device, the analyzer makes an analysis based on the eddy correlation method and obtains, by calculation using this analysis result, a momentum flux and concentration of the measuring object gas.
    • 气体通量测量装置测量森林等区域作为测量对象,不受伴随影响,响应性高,测量稳定性好。 该装置包括激光束源,激光输出控制器,波长调制控制器,第一光接收器,第一直流分量检测器,第一波长调制解调器,光学系统,参考单元,第二光接收器,第二直流分量检测器,第二波长调制 解调器,第三波长调制解调器,分析仪,加法器,温度测量和压力测量。 流量测量装置直接测量测量区域中的气流的水平2向流速分量和垂直方向流速分量,并将这些测量信号输出到分析仪中。 基于从流速测量装置输入的信号,分析仪根据涡流相关方法进行分析,并通过使用该分析结果计算得到测量对象气体的动量通量和浓度。