38 readings
Steel stack, vertical profile to 40 m
35 accepted 3 rejected
FV-2026-002
View validation
Application
Stacks and chimneys
Wall thickness on steel stacks where access equipment is disproportionate to the measurement.
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Real photograph of the asset class: Stacks and chimneys
The actual structure under inspection, showing the access problem. No stock imagery, no icon in place of a photograph.
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Conditions
What we are dealing with
Full-height access costs more than the inspection and requires a production stop.
- Asset geometry
- Vertical cylinders, 20 to 80 m, often guyed.
- Typical material
- Carbon steel, sometimes corten
- Typical coating
- High-temperature coating, condition variable
Today
Conventional approach
Rope access teams over several shifts, or a crane-mounted platform.
With ALTCER
How we measure it
Vertical profile flights at fixed circumferential positions, with readings referenced to height.
You receive: Height-referenced thickness profile per circumferential position.
Demo narrative for layout review. Every condition and limitation on this staging site is invented.
Where this does not apply
Hot surfaces above 40 °C are out of scope. No measurement through refractory lining.
Evidence
Measured on this asset class
Recommended system
960 × 640
Colibri360, real hardware in operation
The actual product, photographed in use. No studio render, no CGI.
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Colibri360
Drone-mounted EMAT thickness gauge with the sensor on a rotary mast, for measuring metal structures without scaffolding or rope access.
- 2 – 60 mm Measurable thickness — S355, mill scale, lift-off up to 2 mm, 20 °C
- 0.08 mm Measurement accuracy — S355 reference block, lift-off 1 mm, 20 °C
- 3 mm Validated lift-off — Coated carbon steel, coating up to 3 mm