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The Institute of infrared Thermography is one of the foremost providers of infrared Thermography Training in the world! We’re flexible and can deliver the training you and your company requires. Where and when you need it. IRT... providing education and training courses of all types internationally since 1984!

The Level II Course follows the ASNT recommended course curriculum, and will be conducted in accordance with ASNT-TC-1A, SNTC outline and procedures for LII.

Level II

The Level II Infrared thermography training course is designed for practicing Level I thermographers who are interested in advancing their inspection skills and application knowledge. Where Level 1 concentrated on Qualitative thermography, Level 2 is focused on Quantitative; temperature, emissivity and transmissivity and the use of information (definitions, equations, tables etc...) available to thermographers. Advanced theory, applications, equipment operations, thermal analysis and inspection techniques, marketing, plus much more, is presented in a simple, easy to learn, hands-on fashion. This hands-on course will assist you to strengthen and improve thermography skills for condition monitoring and nondestructive testing applications for improved accuracy and diagnosis.

Level II Infrared Certification Outline Intermediate Thermal Infrared Physic

  • Basic calculations for three modes of Heat Transfer
    • Conduction Principles and Elementary
    • Calculations
      • Thermal resistance
      • Heat capacitance
    • Convection Principles and Elementary Calculation
    • Radiation Principle and Elementary Calculation
  • The Infrared Spectrum
    • Planck’s law / Curves
    • Spectral Emittance of real Surfaces
    • Semi-Transparent windows and Fillers
  • Radiosity Challenges
    • Blackbodies – Theory / Concepts
    • Emittance Problems
      • Specular and Diffuse Emitters
    • Lambertian Emitters Angular
    • Sensitivity
    • Effects of Emittance Errors
    • Best practices to reduce effects of Reflection
    • Quantifying Effects of Unavoidable Reflections
    • Theoretical Corrections
    • Transmittance Problems
    • Quantifying Partial Transmittance
    • Theoretical Corrections
  • Resolution Test and Calculations
    • IFOV and FOV Measurements and Calculation
    • MRTD
    • Slit Response Function- Measurement
      • Calculations, Interpretations and Comparisons
    • Resolutions vs. lens and Distance




Level II Thermal Infrared Operations

  • Infrared Measurement & Quantification
    • Advanced Measurements
    • Quantifying Target Surface Emittance
    • Accounting for and calculation transmission losses
    • Quantifying Temperature Profiles
  • Producing and Recording Appropriate images Special Equipment for “Active” Techniques
    • Hot or cold fluid energy Sources
    • Heat Lamp / Flash Lamp/ Laser Energy
    • Sources
  • Advanced Reports and Documentation

Level II infrared Partial Applications

  • Active Applications
    • Insulation Flaws
    • Moisture in aircraft bodies
    • Delaminations in Composites
    • Bond Quality of Coatings
    • Location of high Heat Capacity Components
  • Filtered Applications
    • Sunlight
    • Furnace Interiors
    • Semi- Transparent Targets
  • Transient Applications
    • Imaging a Rapidly moving Process
    • Thermal Transients
    • Software – Software to assist diagnosis
    • Asset management – Reliability Centered Maintence (RCM), PdM and CbM
    • Advanced Temperature Measurement Methods
      • Accurate field quantification
      • Baseline and Trending
    • Advanced Applications
      • Electrical Thermography
        • Accounting for load and wind effects
        • The cost of an Electrical Fault
      • Mechanical Systems
        • Diagnosing the mechanical systems
  • Student driven Application Discussion



When you have completed this course and fulfilled the course requirement you will be able to handle most infrared applications. You will be able to properly collect data, achieve accurate, repeatable temperature measurement, interpret infrared image and properly document your findings. The institute’s training courses are Dynamic, practical, informative and Valuable.