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    Covert IR-Laser Remote Listening Device

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    azu_etd_mr_2012_0121_sip1_m.pdf
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    Author
    Melena, Nicholas
    Neuenfeldt, Nicholas
    Slagel, Adam
    Hamel, Matthew
    Mackin, Charles
    Smith, Collin
    Issue Date
    2012-05
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    This honors thesis details the performance, specifications, and process used in designing and building the Covert IR‐Laser Remote Listening Device (RLD.) In the interests of national security and law enforcement, it is some times necessary to perform covert surveillance of a target. The purpose of this product was to create an inexpensive, novel prototype capable of detecting and recording conversation from behind a window or within an automobile. Our final product utilizes window vibrations to deflect an infrared laser beam reflected off of the window surface. The deflections of this reflected beam cause changes in intensity of the light incident upon the photodetector within our product, and these fluctuations are then reconverted to audible sound. The final design prototype has been used to reliably detect sound from behind a window at ranges up to at least 20 feet in the direct reflection condition. This product is the result of funding by Lockheed Martin Advanced Systems in conjunction with the University of Arizona engineering senior design class.
    Type
    text
    Electronic Thesis
    Degree Name
    B.S.
    Degree Level
    bachelors
    Degree Program
    Honors College
    Optical Sciences and Engineering
    Degree Grantor
    University of Arizona
    Collections
    Honors Theses

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