Method of measuring fluid flow
    6.
    发明授权
    Method of measuring fluid flow 失效
    测量流体流量的方法

    公开(公告)号:US06938495B2

    公开(公告)日:2005-09-06

    申请号:US10250598

    申请日:2001-07-24

    CPC分类号: G01P5/26 G01P5/001

    摘要: In the method for measuring the velocity of fluid or visualizing the distribution of fluid by feeding tracer particles to the fluid, irradiating the fluid with light and observing return light from the tracer particles, tracer particles containing a flourescent substance are fed at least partially to the fluid and the fluid is irradiated with exciting light to cause the tracer particles to output flourescent emissions. A filter which does not transmit the exciting light is used to substantially selectively observe the flourecent emissions of the tracer particles. This method results in a remarkable improvement in the accuracy of flow velocity measurement or visualization of fluid distribution. Moreover, in a mixed fluid system consisting of two or more different fluids, the pattern of behavior of each fluid and the intermingled state of the fluids can be observed by using a plurality of different tracer particles.

    摘要翻译: 在用于测量流体速度或通过将示踪剂颗粒供给流体来显现流体分布的方法中,用光照射流体并观察来自示踪剂颗粒的返回光,含有荧光物质的示踪剂颗粒至少部分地供给至 流体和流体被激发光照射以使示踪剂颗粒输出荧光发射。 使用不透射激发光的滤光器用于基本上选择性地观察示踪剂颗粒的荧光发射。 这种方法导致流速测量的精度或流体分布的可视化显着提高。 此外,在由两种或更多种不同流体组成的混合流体系统中,可以通过使用多种不同的示踪剂颗粒观察每种流体的行为模式和流体混合状态。

    Method of measuring fluid flow by analyzing the fluorescent emissions of tracer particles in the fluid
    8.
    发明授权
    Method of measuring fluid flow by analyzing the fluorescent emissions of tracer particles in the fluid 失效
    通过分析流体中示踪剂颗粒的荧光发射来测量流体流动的方法

    公开(公告)号:US06276217B1

    公开(公告)日:2001-08-21

    申请号:US09436907

    申请日:1999-11-09

    IPC分类号: G01F1708

    CPC分类号: G01P5/26 G01P5/001

    摘要: In the method for measuring the velocity of fluid or visualizing the distribution of fluid by feeding tracer particles to the fluid, irradiating the fluid with light and observing return light from the tracer particles, tracer particles containing a fluorescent substance are fed at least partially to the fluid and the fluid is irradiated with exciting light to cause the tracer particles to output fluorescent emissions. A filter which does not transmit the exciting light is used to substantially selectively observe the fluorescent emissions of the tracer particles. This method results in a remarkable improvement in the accuracy of flow velocity measurement or visualization of fluid distribution. Moreover, in a mixed fluid system consisting of two or more different fluids, the pattern of behavior of each fluid and the intermingled state of the fluids can be observed by using a plurality of different tracer particles.

    摘要翻译: 在用于测量流体速度或通过将示踪剂颗粒供给流体来观察流体分布的方法中,用光照射流体并观察来自示踪剂颗粒的返回光,含有荧光物质的示踪剂颗粒至少部分地供给至 流体和流体被激发光照射以使示踪剂颗粒输出荧光发射。 使用不透射激发光的滤光器用于基本上选择性地观察示踪剂颗粒的荧光发射。 这种方法导致流速测量的精度或流体分布的可视化显着提高。 此外,在由两种或更多种不同流体组成的混合流体系统中,可以通过使用多种不同的示踪剂颗粒观察每种流体的行为模式和流体混合状态。

    Method of measuring fluid flow by analyzing the fluorescent emissions
from tracer particles in the fluid
    9.
    发明授权
    Method of measuring fluid flow by analyzing the fluorescent emissions from tracer particles in the fluid 失效
    通过分析流体中示踪剂颗粒的荧光发射来测量流体流动的方法

    公开(公告)号:US5979245A

    公开(公告)日:1999-11-09

    申请号:US698249

    申请日:1996-08-14

    CPC分类号: G01P5/26 G01P5/001

    摘要: In the method for measuring the velocity of fluid or visualizing the distribution of fluid by feeding tracer particles to the fluid, irradiating the fluid with light and observing return light from the tracer particles, tracer particles containing a fluorescent substance are fed at least partially to the fluid and the fluid is irradiated with exciting light to cause the tracer particles to output fluorescent emissions. A filter which does not transmit the exciting light is used to substantially selectively observe the fluorescent emissions of the tracer particles. This method results in a remarkable improvement in the accuracy of flow velocity measurement or visualization of fluid distribution. Moreover, in a mixed fluid system consisting of two or more different fluids, the pattern of behavior of each fluid and the intermingled state of the fluids can be observed by using a plurality of different tracer particles.

    摘要翻译: 在用于测量流体速度或通过将示踪剂颗粒供给流体来观察流体分布的方法中,用光照射流体并观察来自示踪剂颗粒的返回光,含有荧光物质的示踪剂颗粒至少部分地供给至 流体和流体被激发光照射以使示踪剂颗粒输出荧光发射。 使用不透射激发光的滤光器用于基本上选择性地观察示踪剂颗粒的荧光发射。 这种方法导致流速测量的精度或流体分布的可视化显着提高。 此外,在由两种或更多种不同流体组成的混合流体系统中,可以通过使用多种不同的示踪剂颗粒观察每种流体的行为模式和流体混合状态。

    Nitrogen oxides detection method, and sensor element for detection of nitrogen oxides
    10.
    发明授权
    Nitrogen oxides detection method, and sensor element for detection of nitrogen oxides 失效
    氮氧化物检测方法和氮氧化物检测传感器元件

    公开(公告)号:US06306351B1

    公开(公告)日:2001-10-23

    申请号:US09214322

    申请日:1999-01-04

    IPC分类号: G01N2700

    摘要: The present invention relates to a nitrogen oxide detecting element. Although there has been a demand for effecting detection of a nitrogen oxide by using a semiconductor type gas sensor, no semiconductor type sensors have existed which can detect the nitrogen oxide with good selectivity against other interfering gases (CO, H2) for an extended period of time with good durability. Then, by causing a gas detecting portion to include an oxide containing more than a predetermined amount of Bi and maintaining this gas detecting portion at a temperature range where its electron-conductivity is exhibited, it has become possible to detect the nitrogen oxide.

    摘要翻译: 本发明涉及氮氧化物检测元件。 尽管需要通过使用半导体型气体传感器来实现氮氧化物的检测,但是不存在半导体型传感器,其可以以较高的选择性对其他干扰气体(CO,H 2)的长时间检测氮氧化物 时间具有良好的耐久性。 然后,通过使气体检测部包含含有超过规定量的Bi的氧化物,并将该气体检测部保持在其电子传导性的温度范围,可以检测氮氧化物。