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    • 1. 发明申请
    • DUAL SENSOR AIR-IN-LINE DETECTOR
    • 双传感器空中在线检测器
    • WO1995021374A1
    • 1995-08-10
    • PCT/US1995001424
    • 1995-02-03
    • BAXTER INTERNATIONAL INC.DANBY, Hal, C.BRUNDLE, Alan, Keith
    • BAXTER INTERNATIONAL INC.
    • G01N15/06
    • A61M5/365G01N2035/1018
    • A device is provided for the detection of gas, e.g. air in tubing (14) carrying a liquid. The device includes a transmitter (21) for transmitting a light beam to the liquid contained in the tubing (14), and first and second light receivers (20a, 20b) for receiving reflected and transmitted light emitted from the transmitter (21) and which is incident upon the liquid in the tubing. The light receivers are located within a body member (12) around the liquid conducting tubing and each produces a signal according to the condition of the liquid in the tubing. Both receivers produce such a given signal when gas is present in the liquid but each receiver also produces such a signal under a different liquid condition. A processing means (33) is provided which is responsive to the outputs from the two receivers and indicates that gas is present in the tubing only when both provide said given signal.
    • 提供了用于检测气体的装置,例如, 管道(14)中的空气携带液体。 该装置包括用于将光束传输到容纳在管道(14)中的液体的发射器(21),以及用于接收从发射机(21)发射的反射和透射光的第一和第二光接收器(20a,20b) 被引入管道中的液体。 光接收器位于导液管周围的主体构件(12)内,并且每个都根据管道中液体的状况产生信号。 当气体存在于液体中时,两个接收器产生这样的给定信号,但是每个接收器也在不同的液体条件下产生这种信号。 提供了处理装置(33),其响应于来自两个接收器的输出,并且指示仅当两者提供所述给定信号时,气体才存在于管道中。