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ThermalyzeEmissivityThermalStageRegions
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Rich Barton

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The emissivity of paper masking tape has an emissivity of approximately 0.95 and can be used to accurately measure the temperature of a flat surface next to the area of interest (AOI) on a target, allowing the emissivity of the AOI to be calculated.

Note: A thermal stage will be required to heat the target.

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Rich Barton
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  1. Cut and place a small piece of paper masking tape adjacent to the area of interest (AOI) of the target.
  2. Place the target on the thermal stage with a thermal pad between the stage and target to maximize heat transfer.
  3. Set the thermal stage controller to 50°C and allow the target temperature to stabilize.
  4. Begin capturing thermal images.
  5. Select an appropriate lens and position the target so that both the tape and AOI are both in view.
  6. Draw a rectangle region enclosing pixels on the tape.
  7. Draw a second rectangle region enclosing pixels on the AOI.
  8. Position the regions close together (without overlap) to minimize any temperature difference between the areas.
  9. Open the Emissivity Settings window. If the lens working distance is less than approximately 40mm, check Use Camera Temp. If greater than 40mm, uncheck Use Camera Temp and set the Background Temperature to the ambient room temperature.
  10. In the Region Settings window, set the emissivity of the tape region to 0.95.
  11. Adjust the emissivity of the AOI region until the mean temperatures of both regions match.
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