Aerial NDT · West Kootenay
EMAT Inspection in Nelson, BC
Electromagnetic acoustic transducer thickness testing by drone — no couplant, up to 4 mm lift-off, made for corroded, dirty, or coated steel where conventional UT struggles. Flown by Transport Canada-certified RPAS pilots serving Nelson and the West Kootenay region — since 1999 as BC's leak detection and inspection specialists.
Free phone consult · No pressure · Mon–Sat 8am–6pm PT
Flying Nelson: local context
BC's best-preserved heritage downtown on a steep grid — no-contact aerial inspection suits century-old façades perfectly.
Local asset profile: BC's best-preserved heritage town — 1900s homes on terraced streets, with retaining walls and stairs concealing service runs.
Typical emat inspection work around Nelson
- Heritage façade thermography
- Terraced-roof surveys
- Corroded or scaled tank shells
- Coated structures without coating removal
- Dirty industrial surfaces
How the Nelson survey runs
- 1
Surface review
Coating type and condition assessed — EMAT is selected precisely where scale, dirt, or coatings would slow conventional UT.
- 2
Aerial scan
The EMAT head generates ultrasound electromagnetically in the steel itself — contact without couplant, tolerant of rough surfaces.
- 3
Grid acquisition
Readings collected on the survey grid at production pace; anomalies densified immediately.
- 4
Screening report
Thickness map with flagged zones — often the triage step that targets follow-up quantitative UT exactly where it pays.
Nelson questions, answered
How does EMAT work without couplant?
EMAT generates the ultrasonic wave electromagnetically inside the conductive material rather than transmitting it through a gel interface. No couplant, no surface wetting, and tolerance for up to 4 mm of lift-off — which is why it shines on scaled, dirty, or coated steel that would need grinding before conventional UT.
When do you choose EMAT over standard aerial UT?
When surface preparation is the bottleneck: heavy scale, old coatings, dirty process environments, or screening programs covering large areas fast. Conventional UT still wins for highest-precision spot measurements on prepared surfaces — many programs use both, EMAT to screen and UT to quantify.
What materials can EMAT inspect?
Conductive metals — carbon steel is the everyday case, per ASTM E1816-18 practice. Range 2–150 mm with 0.06 mm resolution covers everything from thin shell plate to heavy structural sections.
Can EMAT find corrosion under paint without damaging it?
Yes — that is one of its best tricks. Reading through intact coatings means corrosion surveys no longer require destroying the coating you are trying to protect. Where the coating itself is the question, we pair it with aerial DFT measurement.
Can you legally fly drones for inspection in Nelson?
Yes — our pilots hold Transport Canada RPAS certification with advanced-operations capability, and Nelson operations run under whatever airspace authorizations the location requires. BC's best-preserved heritage downtown on a steep grid — no-contact aerial inspection suits century-old façades perfectly. Flight planning, NOTAM checks, and authorizations are part of the service, not your problem.
How does Nelson weather affect scheduling?
Aerial inspection flies in defined weather windows — wind, precipitation, and (for thermal work) the right temperature differentials. Nelson sits in our standing West Kootenay coverage, so we schedule against the local forecast and typically land the survey within days of booking rather than weeks. Mon–Sat, 8am–6pm Pacific.
What does emat inspection cost in Nelson?
Province-wide pricing — no regional premium for Nelson. Single-asset thermal surveys typically start in the high hundreds; NDT campaigns and multi-asset programs are quoted by scope. The free phone consult (604-239-9934) produces a firm number in about five minutes.
Other aerial services in Nelson
Aerial Ultrasonic Testing (UT) in Nelson
Contact UT wall-thickness measurement delivered by drone — corrosion mapping on tanks, stacks, and structures at height without scaffolding, rope access, or shutdown.
View serviceAerial Pulsed Eddy Current (CUI) in Nelson
Corrosion-under-insulation screening through cladding — pulsed eddy current by drone reads wall thickness through up to 100 mm of insulation and weather jacket. No stripping.
View serviceAerial Coating Thickness (DFT) in Nelson
Dry-film thickness verification at height by drone — magnetic-induction and eddy-current measurement on tanks, stacks, bridges, and structural steel. No lifts, no ropes.
View serviceAerial High-Temperature UT in Nelson
Wall-thickness measurement on hot, in-service assets — 0 to 260 °C (32–500 °F) — without shutdown, by drone. Echo-to-echo and pulsed-echo modes with live A-scan.
View service← All about emat inspection·Aerial inspection hub·drone.leak.ca
Aerial EMAT Inspection near Nelson
Need emat inspection in Nelson?
Free phone consult — asset, access, airspace, and a firm quote in five minutes. No pressure.