公开(公告)号：US20250137911A1

公开(公告)日：2025-05-01

申请号：US18925325

申请日：2024-10-24

Applicant: ABB Schweiz AG

Inventor： Grzegorz Piotr Wawrzola ,  Stefan Pypec ,  Matti Laitinen

IPC: G01N17/00 ,  G01N17/04

Abstract: An atmospheric corrosion sensor for detecting corrosion of electrical equipment comprising at least two atmospheric corrosion sensing structures placed on at least one insulated corrosion sensor substrate wherein the corrosion sensing structures are accessible to corrosion atmosphere. The atmospheric corrosion sensing structures have the same spatial dimensions and each of said atmospheric corrosion sensing structures comprises a different composition of corrodible material.

公开(公告)号：US20250137916A1

公开(公告)日：2025-05-01

申请号：US18924307

申请日：2024-10-23

Applicant: ABB Schweiz AG

Inventor： Stefan Pypec ,  Grzegorz Piotr Wawrzola ,  Adam Michalik ,  Artur Siwek

IPC: G01N17/04

Abstract: An atmospheric corrosion sensor for detecting corrosion of electrical equipment due to corrosive gas comprising at least one atmospheric corrosion sensing structure placed on at least one insulated corrosion sensor substrate, wherein the atmospheric corrosion sensor comprises at least one gas permeable layer placed on the corrosion sensing structure, wherein the gas permeable layer allows for transferring the molecules of corrosive gases present in the atmosphere to the surface of the sensing structure, opposite to the insulated corrosion sensor substrate, causing it to corrode.

公开(公告)号：US20250137915A1

公开(公告)日：2025-05-01

申请号：US18924290

申请日：2024-10-23

Applicant: ABB Schweiz AG

Inventor： Grzegorz Piotr Wawrzola ,  Daniel-Bo Wang ,  Matti Laitinen ,  Vesa Tiihonen

IPC: G01N17/04

Abstract: A method of detecting atmospheric corrosion for electrical devices includes monitoring of an electrical state of plurality of metal structures operating as sensing elements embedded in a corrosion sensor. All metal structures have equal dimensions and are made of the same material with the same chemical structure and are placed on non-conductive substrate and located in electrical device. Each metal structure works as single sensing element and its electrical state is monitored. What is more, monitoring of the electrical state of metal structures comprises an assessment of how many of the metal structures have been damaged due to corrosion. The progress of corrosion is assessed by comparison of number of damaged metal structures to threshold values.