SWIR imaging can also be used for detection of many foreign contaminants to increase quality control and enhance production efficiency.
Crop Sorting for Agriculture
Crops like coffee beans for example. Foreign objects like stones, and raisins look similar in shape and colors mixed in coffee beans are hard to be distinguished by naked eyes, however, when captured in SWIR image, the difference become obvious.
Plastic Sorting for Recycling
SWIR linescan cameras with wavelength from 1.1um to 2.2um can rapidly identify different types of plastic such as PE, Polyester, PVC or acrylic which benefit in recycling industry.