Screens for wall loss straight through coating and insulation.
A handheld pulsed eddy current instrument that screens wall response through coatings and insulation. No surface prep, no bare metal, no couplant, and no shutdown: the line stays in service while it is read.
The probe measures the decay of a transient eddy-current response and reports it as relative apparent wall.
The pulsed eddy current field over a steel wall: the coil's field lines, then the eddy currents decaying in the metal
The pulsed eddy current field over a steel wall, and the eddy currents decaying in it.
Wall-response screening
Limits
PEC is footprint-averaged: it responds to ferromagnetic deposits as if they were wall, and does not resolve isolated pitting. PEC values are relative, based on τ, rather than absolute thickness, unless a material reference exists.
