公开(公告)号：US20240077421A1

公开(公告)日：2024-03-07

申请号：US18455346

申请日：2023-08-24

申请人： Regents of the University of Minnesota

发明人： Margaret Marie Elmer-Dixon ,  Brian Hinderliter ,  Melissa Ann Maurer-Jones ,  Jonathan Michael Tigner

IPC分类号： G01N21/64 ,  G01N33/44

CPC分类号： G01N21/6428 ,  G01N21/6456 ,  G01N33/442 ,  G01N2021/6439

摘要： In general, technical aspects of the current disclosure include determining an age of a plastic material. In one example, a method may include controlling a light source to deliver first light to a plastic material stained with a stain; receiving, by a light detector, second light, the second light comprising at least some of the first light that has interacted with the plastic material stained with the stain; generating, by the light detector, light information representative of the second light; determining, by processing circuitry and based on the light information, an age of the plastic material; and outputting, by the processing circuitry and for display at a display of a computing device, the age of the plastic material.