Sensors & Electronics
Macro Property Measurement
Transient Infrared (IR) Thermography (57)
Problem: Non-destructively determine key sample information by evaluating transient thermal energy diffusion in the object
Project Activity Scope (from Technical Overview Chart): Interaction Mechanisms through Measurement & Analysis System Applications
PNNL Solution:
- Rapidly applied heat using a high energy pulse of light
- Recorded series of IR thermograms showing time-temperature history
- Analyzed thermograms to detect and enhance visibility of thermal conduction anomalies (internal structure, material variations, etc.)
Capabilities Employed to Meet Client Needs: Flash lamp used for rapid sample heating; infrared 2-D imaging camera employed for thermal imaging; computer programming for file manipulation between data acquisition and data analysis systems; image processing; sequential image presentation to allow rapid visualization of process dynamics; experimental design and laboratory method development and evaluation; reference sample preparation to support method evaluation; experimental documentation and formal reporting of results.
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Contact: Michael Watkins
