Problem Solving Forum
September 26 - October 2, 2011
How do you calibrate a DFT gauge in the magnetic field of a live power plant to measure coatings on steel substrates?
Selected Answers
From
Lee Edelman of Independant on
September 28, 2011:
What? Do you mean a blasted surface? Are they shim ...read more
What? Do you mean a blasted surface? Are they shims of a known thickness?
From
Lee Edelman of Independant on
September 28, 2011:
For Type 1 gages, you should take a BMR and subtra ...read more
For Type 1 gages, you should take a BMR and subtract that value from the coating thickness reading. Type 2 gages can be calibrated on known reference standards. I would not calibrate my Type 1 or 2 gage in the magnetic field. There are other choices for DFT readings such as ultra sound.
From
subramaniam anna durai of doosan heavy industries on
September 28, 2011:
We use plastic shims to cal ...read more
We use plastic shims to calibrate a dft gauge on a coated surface.
