A micro differential thermal analysis (DTA) system is used for detection of trace explosive particles. The DTA system consists of two silicon micro chips with integrated heaters and temperature sensors. One chip is used for reference and one for the measurement sample. The sensor is constructed as a small silicon nitride membrane incorporating heater elements and a temperature measurement resistor. In this manuscript the DTA system is described and tested by measuring calorimetric response of 3 different kinds of explosives (TNT, RDX and PETN). This project is carried out under the framework of the Xsense project at the Technical University of Denmark (DTU) which combines four independent sensing techniques, these micro DNT sensors will be included in handheld explosives detectors with applications in homeland security and landmine clearance.
|Journal||Proceedings of SPIE--the international society for optical engineering|
|Publication status||Published - 2011|
|Event||Micro- and Nanotechnology Sensors, Systems, and Applications III - Orlando, FL, United States|
Duration: 25 Apr 2011 → 29 Apr 2011
|Conference||Micro- and Nanotechnology Sensors, Systems, and Applications III|
|Period||25/04/2011 → 29/04/2011|