FLUID LEVEL SENSOR APPARATUS WITH INTER-DIGITATED PLANR CAPACITORS FOR DIRECTLY INSERTING INTO A FLUID

FLUID LEVEL SENSOR APPARATUS WITH INTER-DIGITATED PLANR CAPACITORS FOR DIRECTLY INSERTING INTO A FLUID

According to one embodiment, a fluid level sensor apparatus for directly inserting into an oil-based fluid is disclosed. The apparatus comprises a sense element that includes a plurality of electrodes mounted on one side of a substrate. In this embodiment, the plurality of electrodes form at least t...

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Hauptverfasser: HANNA, Tyler S, LAL, Nikhil B, TADAS, Harshad V, LEGENDRE, Andrew
Format: Patent
Sprache:eng ; fre ; ger
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MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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creator HANNA, Tyler S
LAL, Nikhil B
TADAS, Harshad V
LEGENDRE, Andrew
description According to one embodiment, a fluid level sensor apparatus for directly inserting into an oil-based fluid is disclosed. The apparatus comprises a sense element that includes a plurality of electrodes mounted on one side of a substrate. In this embodiment, the plurality of electrodes form at least two inter-digitated planar capacitors in which a capacitance of one of the inter-digitated planar capacitors varies as a function of the level of the oil-based fluid within a fluid cavity. The apparatus in this embodiment also includes a passivation layer covering the two inter-digitated planar capacitors and an oleophobic coating covering the glass barrier layer.
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subjects MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
title FLUID LEVEL SENSOR APPARATUS WITH INTER-DIGITATED PLANR CAPACITORS FOR DIRECTLY INSERTING INTO A FLUID
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