公开(公告)号：US4594888A

公开(公告)日：1986-06-17

申请号：US703025

申请日：1985-02-19

申请人： Kenneth W. DeBaun ,  Robert H. Morris

发明人： Kenneth W. DeBaun ,  Robert H. Morris

IPC分类号： G01F1/46 ,  G01P5/16 ,  G01F15/00

CPC分类号： G01F1/46 ,  G01P5/16

摘要： An airflow measuring sound attenuator that profiles and stabilizes the pattern of air flowing out of attenuation throats and accurately measures the average velocity of air flowing through the attenautor by a pitot tube array mounted in the region of profiled and stabilized airflow.

摘要翻译： 一种气流测量声衰减器，其分布并稳定从衰减喉管流出的空气模式，并通过安装在异型和稳定气流区域中的皮托管阵列精确地测量流过检流器的空气的平均速度。

公开(公告)号：US4052897A

公开(公告)日：1977-10-11

申请号：US736327

申请日：1976-10-28

申请人： Kenneth W. DeBaun

发明人： Kenneth W. DeBaun

IPC分类号： G01F1/34 ,  G01F1/46

CPC分类号： G01F1/34

摘要： Methods and apparatus for determining the total flow rate of gaseous fluid passing through a plurality of conduits utilizing a plurality of total and static pressure sensing probes, the number of total pressure sensing probes being selected and deployed within each conduit to cover cross-sectional areas of substantially equal and corresponding size, each total pressure sensing probe being connected to one central pressure averaging manifold and each static sensing probe being connected to a second pressure averaging manifold, the pressure difference between the two pressure averaging manifolds being compared to determine the pressure difference as a measure of average velocity.In addition, the fluid flow to and from each manifold is controlled, as by means of a restriction, to impede the flow while providing a substantially laminar flow and a Reynolds number less than 4,000.

摘要翻译： 用于通过使用多个全部和静态压力感测探头来确定通过多个管道的气态流体的总流量的方法和装置，在每个导管内选择并展开总压力传感探针的数目，以覆盖横截面积 每个总压力感测探头连接到一个中央压力平均歧管，并且每个静态感测探头连接到第二压力平均歧管，比较两个压力平均歧管之间的压力差，以将压力差定义为 平均速度的度量。

公开(公告)号：US4559835A

公开(公告)日：1985-12-24

申请号：US580347

申请日：1984-02-15

申请人： Kenneth W. DeBaun

发明人： Kenneth W. DeBaun

IPC分类号： G01F1/46

CPC分类号： G01F1/46

摘要： A traverse probe for insertion transversely with respect to the direction of bulk flow of an air or gas stream to sense and average a traverse of the static pressure and separately to sense and average a traverse of the combination of static and velocity pressure or total pressure of the stream. The probe includes along its length a spaced set of total pressure ports in the tube wall substantially aligned with the direction of flow in the zone of positive total pressure at the tube wall facing the direction of flow and first and second spaced sets of static pressure ports in the tube wall, one set aligned in each of the zones of static pressure only that lie at the tube wall adjacent to and on each side of the zone of positive total pressure. The set of total pressure ports is aligned on the bisector of the included angle between the sets of static pressure ports where the included angle is in the range of about 78.degree.-80.degree. for useful probe diameters.

摘要翻译： 横向探针，用于相对于空气或气体流的主体流动方向横向插入，以感测和平均静压的横移，并且分别用于感测和平均静态和速度压力或总压力的组合的横移 流。 探头沿着其长度包括管壁中的间隔的总压力端口组，其基本上与面向流动方向的管壁处的正的总压力区域中的流动方向对准，以及第一和第二间隔的静压端口组 在管壁中，一组在静压区域中对齐，仅位于与正的总压力区域相邻并且在每一侧的管壁上。 总压力端口的集合在静压端口组之间的夹角的二等分线上，其中夹角在约78°-80°的范围内用于有用的探头直径。