부산대학교 도서관

The aim of this research is to differentiate recyclable material like papers and plastics using capacitance proximity. Capacitance proximity sensor is one of the most famous systems used in the food industry. The sensor is mainly used to detect the level of liquid in the container. However, this research has found a new alternative of using the capacitance proximity sensor which is to identify paper and plastic from mixed recycling materials. This sensor can detect the target based on the permittivity value of each material. The sensors used in this study have been adjusted according to the values of paper and plastic. Experiments have been done using samples with the combination of plastic and paper with different densities. Results obtain from the experiment showed that the capacitance proximity sensor was able to detect non-metallic materials which were plastic and paper and able to identify paper and plastic with different densities.