Apparatus and system for generating magnetic fields in inaccessible regions
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United States of America Patent
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Jul 16, 2024
Grant Date -
May 4, 2023
app pub date -
Oct 21, 2021
filing date -
Oct 21, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A sensor device for testing electrical connections using contactless fault detection is disclosed. The sensor device includes: a surface coil comprising a plurality of concentric loops disposed at a first region located away from the electrical connections. The concentric loops generate a first magnetic field passing through the electrical connections, and the first magnetic field is equivalent to that generated by a coaxial intermediate current loop adjacent to the electrical connections based on an excitation current in the surface coil. The sensor device further includes a sensor adapted to detect a second magnetic field at a second region located away from the electrical connections, wherein variations in the detected second magnetic field provide categories of performance of the electrical connections.
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