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Infrared Thermography Level 3

This course assumes the attending delegate to be an advanced, experienced user of thermal cameras, already familiar with all theoretical and practical aspects of the technology as taught in Levels 1 and 2. The delegate should preferably have in excess of two years practical IRT experience.

Course Benefits

  • The training course and exam follows the ISO 18436-7 Category 3 standard, and the ASNT SNT-TC-1A Level III standard.
  • The course is unique in that it combines practical workshop sessions with the relevant theory required by ISO 18436-7. The level 3 demonstration kits that are included in the price of the course, allow delegates to conduct their own practical workshop exercises (without having to share with other delegates), and then take these kits back to their workplace and show off their newly acquired skills.
  • The course not only prepares the thermographer to carry out advanced thermal analyses and compile professional reports, it is also structured to prepare the delegate for the final examination on day five.
  • The course is vendor neutral and delegates are encouraged to attend with any thermal camera.


Course Outline

The contents of this course closely follow the requirements of ISO 18436-7 and contain as minimum the following:  

1. Principles of infrared thermography (IRT) :

  • Fourier’s Law, Newton’s Law of Cooling 
  • Atmospheric transmission, Radiation reference sources 
  • Planck’s Law, Wien’s Law, Stephan-Bolzmann Law, Emissivity and its influencing factors.

2. Equipment and data acquisition:

  • Infrared camera selection criteria, Spectral bands, Thermal sensitivity (NETD), Lens selection, Optical resolution, and Equipment Operation. 
  • Image composition, Emissivity determination, Error source recognition, prevention and control, Wavelength selection criteria. 
  • Recognizing and dealing with radiation, convection, and conduction. 
  • Effects of incorrect emissivity settings, Camera calibration and Environmental and operational conditions. 

3. Image processing:

  • Temperature measurement, Comparative quantitative and qualitative thermography techniques. 
  • Camera measurement tools, Advanced Software Measurement tools, Distance (atmospheric) correction, Emissivity correction
  • Statistical analysis , Image subtraction, Image montage and Temperature trending 
  • General image interpretation guidelines, and General guidelines for establishing thermal severity assessment criteria

4. General applications

5. Diagnostics and prognostics

6. Condition monitoring applications:

  • Machinery engineering principles (components and construction)
  • Typical machinery failure modes and mechanisms and their associated thermal signatures
  • Severity assessment and acceptance criteria (engineering codes and standards)

7. Corrective actions

8. Reporting and documentation (ISO International Standards)

9. Condition monitoring programme design:

  • General principles, Technique selection, Measurement intervals 
  • Reference temperatures, and Baseline temperatures
  • Procedure development

10. Condition monitoring programme implementation

11. Condition monitoring programme management:

  • Safety, Equipment and Procedure management 
  • Skills and competencies management 
  • Database management 
  • Managing corrective action implementation​