LSM (Large Standoff Magnetometry) technique. 1

[Joss10]

Dear colleagues,
I am looking for information and experience from some colleagues regarding the use of the LSM (Large Standoff Magnetometry) technique for aerial and buried piping inspection.
Any input will be appreciated.

 

[LittleInch]

We looked at this a few months ago.

https://www.eng-tips.com/viewthread.cfm?qid=497468

Looked like Snake oil then and to a certain extent still does.

For $300 you can find the answer

https://www.prci.org/Research/InspectionIntegrity/IIProjects/NDE-3-5/171490/PR652-203801-R03.aspx

and

https://www.prci.org/Research/InspectionIntegrity/IIProjects/NDE-3-5/171490/206678.aspx

Or

https://store.ampp.org/use-of-large-standoff-magnetometry-in-pipeline-integrity-investigations-74735

PG & Es verdict

https://www.researchgate.net/public...ng_Tool_for_Pipelines_Subjected_to_Geohazards

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.