Infrared Thermography Level 2 Course Curriculum

The Level 2 course is designed to increase the knowledge of the Level 1 thermographer to the end that challenges such as active infrared applications may be met. The course looks at infrared radiation from a quantitative view to help determine the monetary value of remedial action taken as a result of thermographic findings. It meets or exceeds the recommended training requirements of ASNT-TC-1A for Level II Thermal/Infrared Certification. The course is a good mixture of audio, visual, and kinetic presentation material to help enable all types of learners to benefit from the material presented.

Introduction

• General overview of the use of Infrared Thermography
• Course logistics and curriculum outline
• Trainer and student introductions
• Understanding Certification and requirements

Intermediate Thermal/Infrared Physics
Matter, Energy, Heat and Temperature

• Basic atomic structure
  - States of matter
  - Bonding of molecules
• Forms of energy
  - Definitions and basic explanation
  -The Kinetic Molecular Theory

Three Modes of Heat Transfer

• Conduction
  - Fourier ’s law: concepts & calculations
  - Thermal resistance
  - Transient conduction: concepts & calculations
• Convection
  - Newton ’s Law of Cooling:
  - Concepts & calculations
  - Real world applications
• Radiation
  - Stephan-Boltzman formula
  - Concepts & calculations
  - Real world applications
  - Dollars and cents calculations of remedial action

The Infrared Spectrum

• Planks Law / curves
• Spectral Emittance of Real Surfaces
• Semitransparent Windows and Filters

Radiosity Principles

• Blackbodies - theory /concepts
• Emissivity concepts
  - specular and diffuse emitters
  - Lambertian emitters - angular sensitivity - effects of emittance errors
  - Emissivity calculations
• Reflection Concepts
  - quantifying effects of reflection
  - theoretical corrections
• Transmittance Concepts
  - quantifying partial transmittance
  - theoretical corrections

Resolution Test & Calculations

• FOV , IFOV and IMFOV
  - measurements & calculations
• NETD, MRTD, MDTD • SRF (Square Response Function Test)
• Resolution vs Lens and Distance

Level II Thermal / Infrared Operations

Infrared Measurement Quantification

• Simple measurements
• Performance of Emissivity testing
• Temperature profiles, Image Subtraction
• Producing and recording accurate images

Special Equipment for "Active" Techniques

• Hot or cold fluid energy sources
• Heat lamp / flash lamp / laser energy sources
• Reports and Documentation

Level II Thermal / Infrared Applications

• Temperature Measurement Applications: Temperature over time
• Energy Loss Applications
• Mass-transfer heat exchange
  -(air or other flows into or out of a system)
• Active Applications
• Filtered Applications

Level II Examination