Magnetic Pipe Sensor

The magnetic pipe sensor addresses the challenge of monitoring internal corrosion in submarine pipelines by using sensor units with magnetic sensor arrays to detect corrosion, enabling timely maintenance decisions and extending pipeline lifespan.

JP7647711B2Active Publication Date: 2025-03-18YOKOGAWA ELECTRIC CORP
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Patent Information

Application Number
JP2022137371
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-08-30
Publication Date
2025-03-18
Estimated Expiration
2042-08-30

AI Technical Summary

Technical Problem

Monitoring internal corrosion in submarine pipelines is challenging due to its uneven growth properties and difficulty in prediction, which can lead to catastrophic equipment failures if not addressed promptly.

Method used

An apparatus comprising one or more sensor units with an inner shell, an outer shell, and a magnetic sensor array disposed between them, configured to detect corrosion by continuously surrounding the pipeline and minimizing dead zones between sensor units.

Benefits of technology

The magnetic pipe sensor effectively detects corrosion over time, allowing for timely decision-making regarding pipeline replacement or maintenance, thereby extending the pipeline's lifespan and reducing replacement costs.

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Abstract

To detect the degree of corrosion of pipe over time.SOLUTION: One or a plurality of sensor units each comprise an inside shell 36, an outside shell 26, and a magnetism sensor array 40. The magnetism sensor array is disposed between the inside shell and the outside shell. The inside shell, the outside shell, and the magnetism sensor array have a complementary curbed shape with respect to the outside surface of a pipe. The sensor units detect the corrosion of the pipe over time. The sensor units are successively arranged around the pipe so as to completely enclose the pipe. The plurality of sensor units are successively arranged around the pipe in such a way that a dead zone between the magnetism sensor arrays of the sensor units is minimized. The inside shell and / or the outside shell includes one of an aluminum, a carbon fiber, an industrial grade plastic, and / or a hybrid material. The magnetism sensor array has a plurality of printed circuit board strips that are arranged in parallel.SELECTED DRAWING: Figure 2
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