# US 12,111,246 B2 · Multifunctional corrosion probe system

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- Number: US 12,111,246 B2
- Document ID: US12111246B2
- Status: Granted
- Kind: B2
- Application number: 17/768,645
- Filed: 2020-08-20
- Published: 2024-04-04
- Granted: 2024-10-08
- Earliest claimed: 2019-10-17
- Applicants: Byeong Ho Ki
- Inventors: Byeong Ho Ki
- Web page: https://patentgrep.com/patent/US12111246B2

## CPC

- G01N 17/04: Corrosion probes
- G01N 27/20: Investigating the presence of flaws
- G01N 17/006: {of metals}
- G01N 17/02: Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

Proposed is a multifunctional corrosion probe system that can sense both general corrosion and focusing corrosion of a pipe on the basis of physical changes of stacked specimens. The multifunctional corrosion probe system includes a sensing unit having a plurality of specimens and a plurality of insulating layers, which are alternately stacked, and configured to be inserted into a pipe, anode wires having first ends installed on first sides of the plurality of specimens, respectively, cathode wires having second ends installed on second sides of the plurality of specimens, respectively, a power control unit to which second ends of the plurality of anode wires and second ends of the plurality of cathode wires are connected, and a graph output unit connected with the power control unit, estimating a current that is output from the power control unit, and outputting a resistance graph and a current graph.

## Claims

### Claim 1

A multifunctional corrosion probe system comprising:
a sensing unit (10) having a plurality of specimens (110) and a plurality of insulating layers (120), which are alternately stacked, and configured to be inserted into a pipe (A);
anode wires (210) having first ends installed on first sides of the plurality of specimens, respectively;
cathode wires (220) having second ends installed on second sides of the plurality of specimens, respectively;
a power control unit (20) having a first end connected to second ends of the plurality of anode wires, having a second end connected to second ends of the plurality of cathode wires, and applying electricity to the plurality of specimens; and
a graph output unit (30) connected with the power control unit (20), estimating a current that is output from the power control unit (20), and outputting a resistance graph and a current graph,
wherein the specimens (110) include a first specimen (111), a second specimen (112), and a third specimen (113) and are made of the same material as the pipe (A),
the third specimen (113) is thicker than the second specimen (112), and
the second specimen (112) is thicker than the first specimen (111),
wherein the insulating layers (120) include a first insulating layer (121) and a second insulating layer (122),
the first insulating layer (121) and the second insulating layer (122) are formed in the same thickness, and
the first insulating layer (121) is inserted between the first specimen (111) and the second specimen (112) and the second insulating layer (122) is inserted in the second specimen (112) and the third specimen (113),
wherein the anode wires (210) include:
a first anode wire (211) connected to the first side of the first specimen;
a second anode wire (212) connected to the first side of the second specimen; and
a third anode wire (213) connected to the first side of the third specimen,
wherein the cathode wires (220) include:
a first cathode wire (221) connected to the second side of the first specimen;
a second cathode wire (222) connected to the second side of the second specimen; and
a third cathode wire (223) connected to the second side of the third specimen,
wherein the power control unit (20) includes:
a first power control module (201) connected with the second end of the first anode wire and the second end of the first cathode wire;
a second power control module (202) connected with the second end of the second anode wire and the second end of the second cathode wire; and
a third power control module (203) connected with the second end of the third anode wire and the second end of the third cathode wire, and
wherein the graph output unit (30) includes a computer, in which software receiving an estimated current and converting and outputting current values into a resistance graph and a current graph, and a warning generation module (21) configured to generate a warning when a resistance value or a current value changes over a reference value.

### Claim 2 (depends on 1)

The multifunctional corrosion probe system of claim 1, wherein the plurality of specimens (110) is made of the same material as the pipe (A), and the plurality of specimens (110) and plurality of insulating layers (120) are stacked and covered with an insulating module (130).