Patent ID: 6348803
Filing Date: 2002-02-19
Classification: G01N

Abstract:
A sensor for use in a sensor system for time domain reflectometry measurement of relative proportions of a fluid mixture having constituents with differing electrical permittivities, comprising:a sensor housing which has outer surfaces configured to engage walls of a fluid flow channel in sealed relationship therewith; an inside face which faces the fluid mixture during measurement; a transition assembly that is connected to a signal lead in sealed relationship with the sensor housing to prevent leakage through the sensor when the inside face is exposed to pressure from the fluid mixture; an electrode having an elongated sensing face which defines an electrode longitudinal axis; said electrode being configured to extend longitudinally across at least part of the inside face in approximately level relationship to the inside face, said electrode being in electrical communication with the signal lead to allow time domain reflectometry signals to be communicated with the electrode.