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    • 4. 发明申请
    • SYSTEMS AND METHODS FOR DETECTING THE PRESENCE AND/OR ABSENCE OF A SOLID LIQUID OR GAS
    • 用于检测固体液体或气体的存在和/或不存在的系统和方法
    • WO2007121398A2
    • 2007-10-25
    • PCT/US2007/066710
    • 2007-04-16
    • GREENWALD TECHNOLOGIES, INC.GREENWALD, ShlomoGREENWALD, Zipora
    • GREENWALD, ShlomoGREENWALD, Zipora
    • A61M1/00
    • A61M1/3626A61M5/1689A61M5/365A61M2205/3317
    • Systems and methods are described for detecting the presence and/or absence of a solid, liquid or gas which utilize an RF energy emitter and RF energy detector for determining whether a solid, liquid or gas is present within a defined physical space. More specifically, an RF energy emitter is provided at a first side of a solid, liquid or gas transmission channel and an RF energy receiver/detector is provided at an opposite side of the solid liquid or gas fluid channel. The RF energy emitter either continuously or periodically emits RF energy which in the preferred exemplary embodiment is in the high-frequency or more preferably ultrahigh frequency signal range. The amount of detected RF energy transferred across the channel is used in determining the presence and/or absence of a solid, liquid or gas.
    • 描述了用于检测使用RF能量发射器和RF能量检测器来确定固体,液体或气体是否存在于限定的物理空间内的固体,液体或气体的存在和/或不存在的系统和方法。 更具体地,在固体,液体或气体传输通道的第一侧设置RF能量发射器,并且在固体液体或气体流体通道的相对侧设置RF能量接收器/检测器。 RF能量发射器连续地或周期地发射RF能量,其在优选的示例性实施例中是高频的,或者更优选的是超高频信号范围。 通过通道传输的检测到的RF能量的量用于确定固体,液体或气体的存在和/或不存在。