Persistent Link:
http://hdl.handle.net/10150/244475
Title:
Covert IR-Laser Remote Listening Device
Author:
Melena, Nicholas; Neuenfeldt, Nicholas; Slagel, Adam; Hamel, Matthew; Mackin, Charles; Smith, Collin
Issue Date:
May-2012
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

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleCovert IR-Laser Remote Listening Deviceen_US
dc.creatorMelena, Nicholasen_US
dc.contributor.authorMelena, Nicholasen_US
dc.contributor.authorNeuenfeldt, Nicholasen_US
dc.contributor.authorSlagel, Adamen_US
dc.contributor.authorHamel, Matthewen_US
dc.contributor.authorMackin, Charlesen_US
dc.contributor.authorSmith, Collinen_US
dc.date.issued2012-05-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © 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.en_US
dc.description.abstractThis 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.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
thesis.degree.nameB.S.en_US
thesis.degree.levelbachelorsen_US
thesis.degree.disciplineHonors Collegeen_US
thesis.degree.disciplineOptical Sciences and Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
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