US 2020/0348354 A1Published application

Fouling sensor

AssigneeIjinus

InventorsARNAUD LE GAC, MATHILDE LE NOALLEC, OLIVIER LE STRAT, ALBIN MONSOREZ, YOANN TREGUIER

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Abstract

A fouling sensor in the form of an electrical insulator including a body. The body includes a dish-shaped portion having a top surface and a bottom surface, and a measurement electrode formed of a printed circuit. Both surfaces are identical and filled with copper. The measurement electrode is positioned inside the dish-shaped portion and the measurement electrode includes an inner surface and an outer surface. The inner surface is oriented towards the inside of the dish-shaped portion and measures the capacitance inside the fouling sensor while the outer surface is grounded. The outer surface is oriented towards the outside of the dish-shaped portion and measures the capacitance outside the fouling sensor while the inner surface is grounded. The body also includes an electrical power supply and a microcontroller configured to instantaneously subtract the capacitive value of the inner surface from that of the outer surface and store the obtained resultant.

Claims10

Dependent claims

A fouling sensor in the form of an electrical insulator comprising a body, the body comprising:

a dish-shaped part comprising a top face and a bottom face;
a measurement unit consisting of a printed circuit comprising a top face and a bottom face that are identical and filled with copper, the measurement unit is positioned inside the dish-shaped part, the measurement unit comprises an inner face and an outer face, the inner face is oriented toward an interior unit of the dish-shaped part and is configured to measure an internal capacitance of the fouling sensor while the outer face is grounded, and the outer face is oriented toward the outside of the dish-shaped part and is configured to measure an external capacitance of the fouling sensor while the inner face is grounded;
a microcontroller configured to connect the outer face to the ground during the internal capacitance measurement, to connect the inner face to the ground during the external capacitance measurement and to instantaneously subtract a capacitive value of the inner face from that of the outer face and to store an obtained resultant voltage;
and
an electrical power supply.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/861,417Filed 29 Apr 2020
Priority: FR 15 5559018 Jun 2015
Published: 5 Nov 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01R 31/1245
Of components, parts or materials: of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
G01N 17/008
Investigating resistance of materials to the weather, to corrosion, or to light: monitoring fouling
G01R 27/26
Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant: measuring…
G01R 27/2605
Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric…:…

Family

Application15/737,310Continuation in part · filed 17 Dec 2017
Application16/861,417Continuation in part
US 2018/0224389 A1Published application
US 2020/0348354 A1This patent

From the US filing history. Foreign family members aren’t listed.

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