Handheld ultrasonic concealed weapon detector

Norbert Wilde; Steve Niederhaus; Hon Lam; Chris Lum

doi:10.1117/12.479300

14 August 2002 Handheld ultrasonic concealed weapon detector

Norbert Wilde, Steve Niederhaus, Hon Lam, Chris Lum

Proceedings Volume 4708, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Defense and Law Enforcement; (2002) https://doi.org/10.1117/12.479300
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

A handheld, battery-operated prototype of a concealed weapon detector (CWD) has been built and tested. Designed to detect both metallic and non-metallic weapons, the sensor utilizes focused ultrasound (40 kHz frequency) to remotely detect concealed objects from beyond arm's length out to a range of about 25 feet (8 meters). Applications include weapon detection in prison settings, by officers in the field for stand-off frisking of suspects, and as supplemental security at courthouse entrances and other monitored portals. The detector emits an adjustable, audible alarm (with provision for an earphone jack) as well as a visible light-bar indicator when an object has been detected. An aiming light, with momentary switch, allows the user to accurately determine the location of the concealed object. A presentation of the detector's capabilities and limitations will be presented along with probability of detection (PD) data obtained using the latest prototype version.

Citation Download Citation

Norbert Wilde, Steve Niederhaus, Hon Lam, and Chris Lum "Handheld ultrasonic concealed weapon detector", Proc. SPIE 4708, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Defense and Law Enforcement, (14 August 2002); https://doi.org/10.1117/12.479300

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