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951 views Technical Discussions Yossi Shoef NDT Inspector Gabi Shoef Ltd, Israel, Joined Dec 2005, 19 Yossi Shoef NDT Inspector Gabi Shoef Ltd, Israel, Joined Dec 2005 19 03:40 Feb-07-2008 thickness for annular plates Does anyone know of a technique to measure the thickness of the annular plates in Aboveground Storage Tank within the critical zone (3") when entry to the tank can not be gained?    Reply  Translate  Close   burhanudin sudharmin Engineering, Reliability and Integrity Eng Shell Malaysia Trading, Malaysia, Joined Jan 2008, 54 burhanudin sudharmin Engineering, Reliability and Integrity Eng Shell Malaysia Trading, Malaysia, Joined Jan 2008 54 05:36 Feb-07-2008 Re: thickness for annular plates The use of PEC (pulse eddy current) was initiated some years ago if I can recall it correctly. The probe is placed on the outer section of the annular plate and the signal transmitted will register thickness readings within the critical zone. ----------- Start Original Message ----------- : Does anyone know of a technique to measure the thickness of the annular plates in Aboveground Storage Tank within the critical zone (3") when entry to the tank can not be gained? ------------ End Original Message ------------    Reply  Translate  Close   Alex McLay Alex McLay 02:20 Feb-08-2008 Re: thickness for annular plates --It is possible to use the PEC system with a thin transducer. --------- Start Original Message ----------- : Does anyone know of a technique to measure the thickness of the annular plates in Aboveground Storage Tank within the critical zone (3") when entry to the tank can not be gained? ------------ End Original Message ------------    Reply  Translate  Close

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