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Electrode for Magnetic Flow Sensor

  • US 20070227248A1
  • Filed: 06/30/2005
  • Published: 10/04/2007
  • Est. Priority Date: 07/02/2004
  • Status: Active Grant
First Claim
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1. A fluid flow sensor (10) for sensing a flow of a fluid (120) through a region, the sensor (10) comprising a magnetic circuit (30) for applying a magnetic field (70) to at least a part of the region, and a configuration of electrodes (40a, 40b) for sensing a potential generated in operation between the electrodes (40a, 40b) in response to the fluid (120) flowing through the magnetic field (120), characterized in that each of the electrodes (40) includes a metal element (130;

  • 300;

    400;

    500), a metal halide element (110;

    310, 320;

    410;

    520), and an at least partially electrically conductive porous element (100;

    330;

    420;

    530), said porous element (100;

    330;

    420;

    530) being operable to at least partially hinder progressive loss of the metal halide element (110;

    310, 320;

    410;

    520) to the flow of the fluid (120) and to provide an electrically conductive path between the flow of the fluid (120) and the metal halide element (110;

    310, 320;

    410, 520) and thereby to the metal element (130;

    300;

    400;

    500).

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