Why external magnets are used during pipeline MFL tool run?
We use them as an alignment point of reference in the 3 and 9 o’clock position to provide a hard identifying feature where no existing ones, such as valves or taps, are present to maintain a high degree of accuracy from the IMU. The IMU is capable of producing sub-centimeter GPS coordinates for any point on the pipeline as long as it’s data can be aligned to features located by the MFL that have known and highly accurate GPS coordinates. When the MFL tool with the IMU passes the magnets, it recognizes the “artifical” anomaly which we have placed on the pipeline. We then align those points from the ILI data to our GIS for accurate location data.
Related Questions
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- How in the long run is it anticipated the information gathered in this tool will be used outside of the schools personal use?
- Why external magnets are used during pipeline MFL tool run?
