Field validation

Coated storage tank shell, 6 to 18 m

Measurement points

39 accepted 3 rejected One square per reading. Not a map of the asset.

Test context

Why readings were rejected: Three readings rejected on a weld cap where the sensor could not sit flat.

Hand-held piezoelectric gauge on prepared spots, same operator, same shift.

Both instruments calibrated on an S355 step wedge before and after the campaign.

Demo narrative for layout review. All results on this staging site are invented.

Wind 4 to 6 m/s. One battery change per profile.

Rejected readings

Rejected readings and why
Point	Location	Condition	Outcome
P-11	West shell, 6.2 m elevation	Unbonded paint	Signal below the acceptance threshold. Recorded as not accepted; no thickness value derived.
P-27	West shell, 11.4 m elevation	Weld cap	Geometry outside the convex minimum, so the sensor could not sit flat.
P-38	North shell, 16.8 m elevation	Local pitting	Surface condition outside the validated range.

Does not demonstrate performance above 3 mm coating, on weld caps, or below 5 °C.

960 × 640 Colibri360, real hardware in operation The actual product, photographed in use. No studio render, no CGI. media placeholder

Drone-mounted EMAT thickness gauge with the sensor on a rotary mast, for measuring metal structures without scaffolding or rope access.

Send the material, coating and access details. You get a feasibility answer with the conditions stated.