Infrared Thermography
🐘 Tusker VaultSpecializedSurface & Visual • IR

Infrared Thermography (IR)

Method Overview

Non-contact temperature distribution analysis to detect thermal anomalies, insulation voids, and structural delaminations.

Core Method Specifications

Technique IDIR
AcronymIR
CategorySpecialized
ModalitySurface & Visual
Standardized Report TemplateISO 17020 Ready
IR-Standard-TemplateTest in Sandbox

Target Applications & Governing Standards

1 Scopes Configured
Pressure Vessels
ASTM C1060 API 530
Target Assets / Components:
Refinery HeatersFired Furnace WallsRefractory Linings
Detectable Defects & Anomalies:
• Hotspots• Refractory Thinning• Insulation Voids

Method Limitations & Operational Boundary Conditions

Critical physics limits, thermal envelopes, blind spots, and ASME Sec V / API procedural boundaries for IR.

Level III Procedure Control
Operating Temp Envelope
Standard Envelope-20°C to +50°C ambient camera operating temperature
High-Temp CapabilityTarget object temperatures can range from -40°C to +2000°C (-40°F to 3632°F) with calibrated lens filters

Direct sunlight exposure, solar loading, and wind speeds > 15 mph (24 km/h) wash out thermal gradients on outdoor assets.

Thickness & Dead Zone
Min ThicknessEvaluates surface thermal radiation flux
Max RangeSubsurface insulation voids and refractory thinning detectable up to 300 mm (12 in) depth
Near-Surface Dead Zone

Requires active heat flow / thermal gradient (minimum Delta T >= 5°C) between internal process and external surface

Surface Condition & Couplant
Roughness & PrepSurface emissivity must be known. High emissivity surfaces (oxidized steel 0.85–0.95) are ideal
Coating TolerancePolished or unpainted bare metals have low emissivity (< 0.10) and act as thermal mirrors, reflecting background heat sources
Couplant / Media

None (non-contact optical radiation detection)

Geometry & Orientation
Orientation Sensitivity

Direct optical line of sight: camera angle of incidence should be within 45° of perpendicular to avoid emissivity drop-off

Clearance:Safe stand-off distance from high-voltage switchgear, rotating turbines, and fired furnace tubes
Critical Blind Spots
  • •Assets with zero heat flux (isothermal conditions where internal fluid temperature matches ambient)
  • •Shiny unpainted aluminum or galvanized insulation jacketing reflecting sky radiation and operator body heat
False Indication Trap:

Solar gain reflections on western pipe exposures during late afternoon mistaken for refractory thinning hotspots

Recommended Cross-Validation

Direct high-temperature UT thickness measurement on hot spots detected on fired furnace tubes

Visual internal borescope check of refractory lining tiles and anchor pins

Level III Code Compliance Directive:ASTM C1060 and ISO 18436-7 require entering precise ambient temperature, reflected apparent temperature, and calibrated surface emissivity.

Technique-to-OEM Compatibility Matrix

Verified manufacturers, instrument models, and diagnostic portals supporting IR.

9 Verified OEMs
FLIR Systems (Teledyne FLIR)

FLIR Systems (Teledyne FLIR)

World benchmark manufacturer of radiometric thermal imaging cameras, optical gas imaging (OGI) leak cameras, acoustic acoustic imagers, and drone payloads under Teledyne Technologies.

Modalities:IRDVTVTLT
Flyability

Flyability

Swiss pioneer of collision-resilient confined-space inspection drones (Elios series) with protective cage and multi-sensor payloads (UT thickness gauge, LiDAR 3D, and thermal) for tanks, boilers, and chimneystacks.

Modalities:RVIVTDVTUTIR
Skydio

Skydio

Autonomous AI-powered inspection drones (Skydio X10/X2) equipped with 360° computer-vision obstacle avoidance, thermal cameras, and automated 3D scan mapping for critical industrial assets.

Modalities:VTDVTIR
Percepto

Percepto

Autonomous Drone-in-a-Box (Air Max & Air Mobile) and AIM software platform for continuous automated visual, thermal, and optical gas inspection of refineries, mines, and utilities.

Modalities:VTDVTIRLT
Easy Aerial

Easy Aerial

Tethered and autonomous free-flight drone monitoring systems designed for long-endurance visual testing (DVT) and thermal perimeter monitoring of industrial energy assets.

Modalities:VTDVTIR
Fluke Corporation

Fluke Corporation

Fortive subsidiary and world benchmark manufacturer of industrial test tools, thermal imaging cameras, acoustic imaging leak detectors, and portable vibration meters.

Modalities:VTVAIR

FLIR Systems

OEM Manufacturer for IR inspection systems.

Verified Partner

Testo

OEM Manufacturer for IR inspection systems.

Verified Partner

Optris

OEM Manufacturer for IR inspection systems.

Verified Partner
ASME Sec V & ISO 9712 Qualified