System for measuring characteristics of a fluid flow

    公开(公告)号:US10060869B2

    公开(公告)日:2018-08-28

    申请号:US15556522

    申请日:2016-04-15

    摘要: The present invention relates to a system for measuring electrical characteristics of a fluid flowing through a section of a pipe, the system comprising a coaxial resonator, formed by an essentially coaxial insert in said pipe defining an annular volume between a chosen part of said insert and the pipe wall, said insert and pipe wall being made from an electrically conductive material, the system further comprising at least one antenna adapted to emit electromagnetic signals into and receive electromagnetic signals from said coaxial resonator, and means to measure the frequency response of said coaxial resonator within a frequency range including the waveguide mode TE11 of said coaxial resonator, The coaxial insert is mounted to the pipe wall through at least one support leg being positioned outside said annular volume, and one electrically conductive fin is positioned at least partially in the annular volume, said fin being positioned in a radial plane, said plane being different from the plane of said at least one antenna and the axis of said annular volume.

    SYSTEMS AND METHODS FOR ENVIRONMENT SENSING
    5.
    发明申请

    公开(公告)号:US20180080891A1

    公开(公告)日:2018-03-22

    申请号:US15271692

    申请日:2016-09-21

    IPC分类号: G01N27/04 G01N33/00

    摘要: Systems and methods are provided for environment sensing. The system includes a sensor having a sensing material and at least one pair of electrodes in contact with the sensing material, the sensing material configured to be in contact with an ambient environment. The system includes a controller circuit electrically coupled to the at least one pair of electrodes. The controller circuit is configured to generate a stimulation waveform for application to the sensing material of the sensor via the at least one pair of electrodes. The controller circuit is configured to receive an electrical signal from the at least one pair of electrodes representative of an impedance response of the sensing material, and analyze the impedance response of the sensing material at frequencies that provide a linear response of the sensing material to an analyte of interest and at least partially reject effects of interferences.