Rapid, Noninvasive Contraband Detection by Acoustic Response

    Volume 40, Issue 3 (May 1995)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 5


    Young, C
    Supervisory Special Agent and Electronics Engineer, Federal Bureau of Investigation, Engineering Research Facility, Quantico, VA

    Yohman, R
    Supervisory Special Agent and Electronics Engineer, Federal Bureau of Investigation, Engineering Research Facility, Quantico, VA

    (Received 22 September 1993; accepted 20 August 1994)

    Abstract

    We present here a simple, inexpensive method for the rapid detection of concealed contraband materials. This method exploits the difference in acoustic response between a hollow, contraband-laden host and a solid object of the same type. We model the concealment as a damped resonator and contrast it with the unperturbed unit, which is solid and therefore exhibits less damping upon excitation. Next we present the laboratory results that confirmed the efficacy of the technique, prior to on-site deployment as part of a narcotics investigation. Finally, we summarize the results in situ and offer concluding comments.


    Paper ID: JFS13807J

    DOI: 10.1520/JFS13807J

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    Author
    Title Rapid, Noninvasive Contraband Detection by Acoustic Response
    Symposium , 0000-00-00
    Committee E30