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    • 2. 发明申请
    • DEVICE AND PROCESS FOR MEASURING THE VELOCITY OF FLOW OF A FLUID
    • 用于测量流体流动速度的装置和方法
    • US20090133490A1
    • 2009-05-28
    • US12241610
    • 2008-09-30
    • Ulf ZSCHERNACKHenning GERDERHartmut STARK
    • Ulf ZSCHERNACKHenning GERDERHartmut STARK
    • G01F1/68
    • G01P5/12A61B5/0878G01F1/684G01F1/698G01F15/028
    • A device is provided for measuring the velocity of flow of a fluid in a respiration system and includes a first thermal sensor element (5) provided with a controllable heating element (50) and a second thermal sensor element (6). The thermal sensor elements (5, 6) are arranged at spaced locations from one another at a path of flow, so that a thermal signal generated by the first sensor element (5) with the heating element (50) is transmitted to the second sensor element (6), and the second sensor element (6) is designed to detect the thermal signal from the fluid flow. The second sensor element (6) is connected to the first sensor element (5) via feedback (12) which triggers another thermal signal. A controlling and analyzing device (13, 15) is connected to the sensor elements (5, 6) to start the generation of a first thermal signal and to read and analyze the signal frequency as an indicator of the velocity of flow.
    • 提供了一种用于测量呼吸系统中的流体的流速的装置,并且包括设置有可控加热元件(50)和第二热传感器元件(6)的第一热传感器元件(5)。 热传感器元件(5,6)在流动路径处彼此间隔开地布置,使得由第一传感器元件(5)与加热元件(50)产生的热信号被传送到第二传感器 元件(6),第二传感器元件(6)被设计成检测来自流体流的热信号。 第二传感器元件(6)通过触发另一个热信号的反馈(12)连接到第一传感器元件(5)。 控制和分析装置(13,15)连接到传感器元件(5,6)以开始产生第一热信号,并且读取和分析信号频率作为流速的指标。