Differential thermal analysis microsystem for explosive detection

Jesper Kenneth Olsen, Anders Greve, L. Senesac, T. Thundat, Anja Boisen

    Research output: Contribution to journalConference articleResearch


    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.
    Original languageEnglish
    JournalProceedings of SPIE--the international society for optical engineering
    Pages (from-to)80312P
    Publication statusPublished - 2011
    EventMicro- and Nanotechnology Sensors, Systems, and Applications III - Orlando, FL, United States
    Duration: 25 Apr 201129 Apr 2011


    ConferenceMicro- and Nanotechnology Sensors, Systems, and Applications III
    Country/TerritoryUnited States
    CityOrlando, FL
    Internet address


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