Methods and devices for sensing corrosion under insulation (CUI)

摘要

A method of sensing corrosion of a pipe covered by a layer of insulation comprises positioning a CUI sensor radially adjacent an outer surface of the pipe. The CUI sensor comprises a non-conductive base having a first end and a second end opposite the first end. In addition, the CUI sensor comprises a first test circuit mounted to the base. The first test circuit includes a first conductor, a second conductor, and a first testing element extending between the first conductor and the second conductor. Further, the method comprises exposing the first testing element to the same environment as the outer surface of the pipe. Still further, the method comprises determining whether the first testing element has corroded through. Moreover, the method comprises assessing whether corrosion of the pipe has occurred based on the determination of whether the first testing element has corroded through.

主权项

1. A method of sensing corrosion of a pipe covered by a layer of insulation, the method comprising:
inserting a CUI sensor radially through the layer of insulation to a location adjacent an outer surface of the pipe, wherein the CUI sensor comprises:
a non-conductive base having a first end and a second end opposite the first end, wherein the inserting step positions the first end of the base distal the pipe and the second end of the base adjacent the pipe; andat least one test circuit mounted to the base, wherein each test circuit includes a first conductor, a second conductor, and a testing element extending between the first conductor and the second conductor; exposing the testing element to the same environment as the outer surface of the pipe; and determining whether the testing element has corroded through.