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2. 发明申请

US20100095782A1 METHOD AND APPARATUS FOR DETERMINING THE FLOW PARAMETERS OF A STREAMING MEDIUM 审中-公开
标题翻译：用于确定流媒体流动参数的方法和装置
公开(公告)号：US20100095782A1
公开(公告)日：2010-04-22
申请号：US12531105
申请日：2008-12-05
申请人： György Ferencz , Zoltan Rozsnyik
发明人： György Ferencz , Zoltan Rozsnyik
IPC分类号： G01F1/66
CPC分类号： G01F1/667 , G01F1/66 , G01F1/662 , G01F15/14 , G01F25/0007
摘要： According to the method longitudinal waves are generated in a transducer used only as a transmitter connected from outside to a conduit. These waves are transmitted along two diagonal paths through the streaming medium in an upstream and a downstream direction, and received by two transducers used only as receivers which are located in a diagonal upstream and downstream position and on an opposite side relative to the transducer used as a transmitter, also connected to the conduit. A transit time value of the waves between the transducer used as a transmitter and each of the transducers used as receivers is determined. A difference value on the basis of the determined transit time values is generated and the flow parameters are determined on the basis of said difference value. This measuring method is highly independent of the propagation velocity of the wave in the medium streaming in the conduit therefore also independent of the temperature and humidity of a gaseous medium. An apparatus and a conduit for use in the apparatus for performing the method is also suggested. The conduit used in the apparatus comprises a first location for receiving a transmitter in a middle region of the measuring area and two second locations for receiving receivers in a border region of the measuring area opposite to the first location. The wall of the conduit is dimensioned so that the longitudinal waves can pass through it with minimal loss and maximum efficiency. The inner wall of the conduit forms a uniform and continuos surface for the transmission of the longitudinal waves between the transmitter and the receivers and for blocking the passage of any organic or inorganic material. In medical applications the apparatus and its housing is configured to receive, hold and release a sterile conduit.
摘要翻译：根据该方法，在仅用作从外部连接到导管的发射器的换能器中产生纵波。这些波沿着上游和下游方向的两条对流路径通过流媒体传输，并且被两个仅用作接收器的换能器接收，该换能器位于对角上游和下游位置，并且相对于用作一个发射器，也连接到导管。用作发射机的传感器和用作接收器的每个换能器之间的波的渡越时间值被确定。生成基于确定的通过时间值的差值，并基于所述差值确定流量参数。该测量方法与导管中的介质流中的波的传播速度非常独立，因此也不依赖于气体介质的温度和湿度。还提出了用于执行该方法的装置中的装置和导管。在装置中使用的导管包括用于在测量区域的中间区域中接收发射器的第一位置和用于在与第一位置相对的测量区域的边界区域中接收接收器的两个第二位置。导管的壁尺寸使得纵波能够以最小的损失和最大的效率通过它。导管的内壁形成均匀且连续的表面，用于在发射器和接收器之间传输纵波，并阻止任何有机或无机材料的通过。在医疗应用中，该装置及其壳体构造成接收，保持和释放无菌导管。

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