Thermal Imaging

Shortwave infrared (SWIR) is used in many applications for imaging objects with temperature greater than 100°C (> 373°K or >212°F).

In practice, InGaAs is used to image thermal radiation from objects ranging in temperature from 100 degrees C to above 1600 degrees C.

Above these temperatures, objects emit enough thermal emissions to be detected by SWIR camera’s FOV.

Typical application is used for industrial furnace monitoring for different products under super high temperature processing.
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Glass Bottle Defect Inspection

SWIR cameras can image through glass, allowing operators to inspect both the interior and exterior walls of the bottle, as well as monitor the temperature uniformity and cooling rate of the material.

These images allow glassmakers to prevent shattering due to uneven cooling or unmelted raw materials.
 
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Molten Metals Defect Inspection

One of the challenges in metal production is eliminating the impurities (slag) while processing the molten metal (typically 980 to 1650 degrees C).

InGaAs cameras detect emissivity differences between the hot metal and the slag or impurities, which provides operators with necessary information on when to end the process.

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