ITC Thermographer Level III study plan

Derive and explain the Planck, Wien, and Stefan-Boltzmann relationships and state what each predicts about peak wavelength, total exitance, and temperature sensitivity

Compute radiated exitance and spectral band fractions for a blackbody at three temperatures using a spreadsheet you build yourself

Distinguish emissivity, reflectivity, transmissivity, and absorptivity and apply Kirchhoff's law to a real target surface

Quantify how a 1 K target change maps to an apparent temperature change at 3-5 µm versus 8-14 µm for a 300 K target

Explain how detector type (microbolometer, cooled photon, InGaAs, QWIP) sets spectral response, NETD, frame rate, and calibration stability

Calculate IFOV and measurement spot size for three lens/detector combinations and decide whether a target fills the required pixel count

Identify the atmospheric transmission windows and explain humidity, CO2, and path length effects on measured temperature

Set up and justify an emissivity and reflected-apparent-temperature correction for a low-emissivity target

List the sources of measurement uncertainty in a radiometric measurement and rank them by typical magnitude for a 100 °C target

Describe a blackbody calibration check procedure and state acceptable drift criteria you would adopt

Interpret a calibration certificate: emissivity setting, uncertainty statement, and traceability chain

Explain how ambient temperature drift, non-uniformity correction, and integration time affect accuracy in the field

Compare radiometric versus non-radiometric imagers for program needs

Map the elements of a thermography program: written procedure, route design, severity criteria, training records, and equipment control

Draft severity classification criteria (delta-T thresholds and absolute limits) for electrical and mechanical assets and justify each threshold

Identify which consensus standards and recommended practices govern inspection, calibration, and qualification, and state what each covers without quoting them

Design a route and naming convention that makes repeat surveys comparable over time

Build a corrective-action workflow that links a finding to a work order, a recheck interval, and a closeout record

Define qualification levels, experience hours, and recertification requirements you would require of your own team

Establish an equipment control log covering calibration dates, lens inventory, and performance checks

Draft a report template that separates observation, measurement, interpretation, and recommendation

Analyze an electrical finding using load, delta-T, and phase comparison, and explain why absolute temperature alone can mislead

Interpret mechanical findings such as bearing friction, coupling misalignment, and belt wear from thermal patterns described in text

Evaluate building-envelope findings: insulation voids, air leakage, and moisture, including the required thermal gradient and its direction

Explain solar loading, wind, and emissivity variation as confounders in exterior surveys and state how to control for each

Justify when thermography is not the right tool for a stated problem

Perform a root-cause analysis on a finding that has two plausible explanations and state the discriminating test

Write recommendations that specify action, urgency, and owner rather than generic advice

Review a peer report against a checklist and identify at least five defects in reasoning or documentation

Explain how to present uncertainty and limitations to a non-technical client without overstating confidence

Complete a timed 100-question mixed-domain practice set and score each domain separately

Re-derive the five calculations you missed most often until you can do them without notes

Reconcile your severity criteria and accuracy budget against the standards you identified in week 4

List your remaining weak objectives and schedule targeted review before the exam