Fluid property sensing array utilizing a neural network

Patent metadata

Field	Value
Publication number	US-12247940-B2
Application number	US-202217587101-A
Country	US
Kind code	B2
Filing date	Jan 28, 2022
Priority date	Mar 30, 2021
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

A fluid property sensing array includes a first sensor including a first electrode assembly and a first sensing layer at least partially coating the first electrode assembly, the first sensor having a first response to a property of the fluid; and a second sensor including a second electrode assembly and a second sensing layer at least partially coating the second electrode assembly, the second sensor having a second response to the property of the fluid. The array can include a third sensor including a third electrode assembly and a third sensing layer at least partially coating the third electrode assembly, the third sensor having a third response to the property of the fluid. The first sensing layer, the second sensing layer, and the third sensing layer can be compositionally different, such that the first response, the second response, and the third response to the property of the fluid are different.

First claim

What is claimed is:

1. A fluid property sensing array for detecting properties of a fluid, the fluid property sensing array comprising
a first sensor including a first electrode assembly and a first sensing layer at least partially coating the first electrode assembly, the first sensor having a first response to a property of the fluid;
a second sensor including a second electrode assembly and a second sensing layer at least partially coating the second electrode assembly, the second sensor having a second response to the property of the fluid; and
a third sensor including a third electrode assembly and a third sensing layer at least partially coating the third electrode assembly, the third sensor having a third response to the property of the fluid;
where the first sensing layer, the second sensing layer, and the third sensing layer are compositionally different, such that the first response, the second response, and the third response to the property of the fluid are different;
where the first sensing layer includes polyimide, where the second sensing layer includes polytetrafluoroethylene, and where the third sensing layer includes a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer.

2. The fluid property sensing array of claim 1 , where the fluid is lubricant oil.

3. The fluid property sensing array of claim 1 , where the first response includes response to water content of the fluid and response to one or more of acid content and base content of the fluid.

4. The fluid property sensing array of claim 3 , where the second response includes response to the one or more of acid content and base content of the fluid and an indifference response to the water content of the fluid.

5. The fluid property sensing array of claim 4 , where the third response includes response to both the acid content and the base content of the fluid.

6. The fluid property sensing array of claim 2 ,
where the first response includes response to water content of the lubricant oil and response to one or more of acid content and base content of the lubricant oil,
where the second response includes response to the one or more of acid content and base content of the lubricant oil and an indifference response to the water content of the lubricant oil, and
where the third response includes response to both the acid content and the base content of the lubricant oil.

7. The fluid property sensing array of claim 1 , where the first electrode assembly, the second electrode assembly, and the third electrode assembly include respective interdigitated electrode assemblies.

8. A fluid property sensing system comprising
a fluid property sensing array for detecting properties of a fluid, the fluid property sensing array comprising
a first sensor including a first electrode assembly and a first sensing layer at least partially coating the first electrode assembly, the first sensor having a first response to a property of the fluid;
a second sensor including a second electrode assembly and a second sensing layer at least partially coating the second electrode assembly, the second sensor having a second response to the property of the fluid; and
a third sensor including a third electrode assembly and a third sensing layer at least partially coating the third electrode assembly, the third sensor having a third response to the property of the fluid;
where the first sensing layer, the second sensing layer, and the third sensing layer are compositionally different, such that the first response, the second response, and the third response to the property of the fluid are different;

a measurement circuit for measuring the first response, the second response, and the third response, to thereby produce a data output;
a data acquisition machine for converting the data output into a computer input; and
a computer for receiving the computer input, where the computer employs a neural network for processing the computer input, where the neural network is a general regression neural network.

9. The fluid property sensing system of claim 8 , where the general regression neural network includes an input layer, a radial basis layer, a linear layer, and an output layer.

10. The fluid property sensing system of claim 9 , where the input layer includes from three to five nodes, the radial basis layer includes from ten to thirty-two nodes, the linear layer includes from two to five nodes, and the output layer includes from three to five nodes.

11. The fluid property sensing system of claim 10 , where the input layer includes three nodes, and the output layer includes three nodes.

12. A fluid property sensing system comprising
a fluid property sensing array for detecting properties of a fluid, the fluid property sensing array comprising
a first sensor including a first electrode assembly and a first sensing layer at least partially coating the first electrode assembly, the first sensor having a first response to a property of the fluid;
a second sensor including a second electrode assembly and a second sensing layer at least partially coating the second electrode assembly, the second sensor having a second response to the property of the fluid; and
a third sensor including a third electrode assembly and a third sensing layer at least partially coating the third electrode assembly, the third sensor having a third response to the property of the fluid;
where the first sensing layer, the second sensing layer, and the third sensing layer are compositionally different, such that the first response, the second response, and the third response to the property of the fluid are different;

where the system provides a first alarm for an increase in the acid content being about 0.3 mg KOH/g, a second alarm for the base content being lower than 2 mg KOH/g, and a third alarm for the water content being about 1000 ppm.

13. A fluid property sensing system comprising
a fluid property sensing array for detecting properties of a fluid, the fluid property sensing array comprising
a first sensor including a first electrode assembly and a first sensing layer at least partially coating the first electrode assembly, the first sensor having a first response to a property of the fluid;
a second sensor including a second electrode assembly and a second sensing layer at least partially coating the second electrode assembly, the second sensor having a second response to the property of the fluid; and
a third sensor including a third electrode assembly and a third sensing layer at least partially coating the third electrode assembly, the third sensor having a third response to the property of the fluid;
where the first sensing layer, the second sensing layer, and the third sensing layer are compositionally different, such that the first response, the second response, and the third response to the property of the fluid are different;

where the system provides a first alarm for an increase in the acid content being from 0.2 mg KOH/g to 0.4 mg KOH/g, a second alarm for the base content being lower than 3 mg KOH/g, and a third alarm for the water content being from 500 ppm to 2000 ppm.

14. A fluid property sensing system comprising
a fluid property sensing array for detecting properties of a fluid, the fluid property sensing array comprising
a first sensor including a first electrode assembly and a first sensing layer at least partially coating the first electrode assembly, the first sensor having a first response to a property of the fluid;
a second sensor including a second electrode assembly and a second sensing layer at least partially coating the second electrode assembly, the second se

Assignees

• Zhe Jiang
• Jiao Dian
• Urban Aaron
• Univ Akron

Inventors

• Zhe Jiang
• Jiao Dian
• Urban Aaron

Classifications

• G06N3/0985

  Hyperparameter optimisation; Meta-learning; Learning-to-learn · CPC title

• G06N3/0499

  Feedforward networks · CPC title

• G06N3/09

  Supervised learning · CPC title

• G01N33/2876 Primary

  Total acid number · CPC title

• G06N3/08

  Learning methods · CPC title