| Title |
A System of Detecting Explosives using Fluorescence Quenching of Polymers |
| Authors |
박동출(Dong-Chul Park) ; 정용재(Youngjae Jung) |
| DOI |
https://doi.org/10.5573/ieie.2023.60.12.61 |
| Keywords |
Explosive detection; Fluorescent quenching; Chemosensor; Vapor detection of explosives |
| Abstract |
There is a need to develop an explosive detection system that can detect land mines and explosive terrorist attacks buried in war and conflict areas in advance. Using the polymer fluorescence quenching phenomenon, the decrease in fluorescence intensity when explosive vapor combines with a fluorescent polymer material is selected with an optical system and digitized through an amplifier circuit and ADC. An algorithm was applied to integrate the relative difference in the section with a negative slope and determine that explosive material was detected when the integrated value exceeds the threshold. The air-aspirated explosive detection system in this study can detect TNT concentrations up to 9.15 ppb and has a response time of less than 5 seconds. |