DU Jing, SUN Zhi-feng, WANG Hao. PET/PVC waste plastic sorting system based on NIR technology[J]. 2011, 30(9): 98-101. DOI: 10.13873/j.1000-97872011.09.039.
A simple device for automated sorting of post-consumer PET and PVC waste plastic is described.Different plastic has different NIR spectrum
an infrared spectral detection is designed by a photoelectric sensor in conjunction with a narrowband filter.The system platform is centralized on STM32F103X
it consists of signal conditioning module
A/D conversion module
control
separation module and communication module.According to the results
PVC particles are apart from PET plastics with 100 % efficiency in ideal separation.The system runs precisely and quickly