Fluid quality sensor

Details Fluid quality sensor Fluid quality sensor

2006-08-07

2008-12-16

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S670000, C324S685000, C324S686000

Reexamination Certificate

active

07466147

ABSTRACT:
A fluid quality sensor includes a first electrode (24) that has a fluid passageway (22) that is adapted to be placed in line with at least one fluid conduit (30). A second electrode (40) is supported within the fluid passageway (22) and electrically isolated from the first electrode (24). The first electrode (24) and the second electrode (40) operate as a capacitor for making fluid quality determinations. A disclosed example includes a temperature sensor (50) thermally coupled with a mounting member (42) that supports the second electrode (40) within the first electrode24. A disclosed example includes a multiple piece first electrode that allows for at least a portion of the second electrode (40) to be exposed and accessible near one end of at least one piece of the first electrode during a selected portion of an example assembly process.

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