Electro-magnetic acoustic transducer (emat) with tri-axial transverse field inspection (tfi)

A system for inspecting pipelines, the system comprising:

• a pipe inspection gauge (PIG), the PIG comprising:
• at least one cylindrical PIG measurement section, each cylindrical PIG measurement section comprising:
• a magnetizer providing a static magnetic field;
• at least one measurement surface, each measurement surface comprising:
• at least one EMAT sensor;
• and
• at least one transverse field inspection (TFI) sensor;
• wherein the static magnetic field interacts with the at least one EMAT sensor in an EMAT measurement process and wherein the static magnetic field acts
• with the at least one TFI sensor in a TFI measurement process;
• a memory device;
• a processor communicatively coupled to the at least one EMAT sensor, the at least one TFI sensor, and the memory device configured to:
• store EMAT measurement information and store TFI measurement information;
• collect an EMAT measurement sample in sequence with a TFI measurement sample;
• and
• collect position information of the PIG along a pipeline;
• wherein the system is operable to inspect a length of a pipeline with an EMAT measurement process and with a TFI measurement process in a single traversal of the PIG along the length of the pipeline, and wherein the system is operable to identify one or more pipeline features based on the EMAT measurement process and the TFI measurement process.