Audio Spotlight: How an Audio Spotlight Works [video]
Naval Postgraduate School Physics
MetadataShow full item record
Dr. Bruce Denardo explains how a audio spotlight works and gives a jaw-dropping demonstration. The Audio spotlight is uses a set of transducers to generate a 65 kHz beam and because the wavelength of this beam is so small, it does not spread. In one sense, the audio spotlight is similar to a laser. How do we make this 65 khz beam of acoustic energy audible, so you can hear something when the acoustic spotlight is pointed at you?
NPS PhysicsIn-class Physics Demonstrations
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
From blackout at Pearl Harbor to spotlight on Tokyo Bay: a study of the evolution in U.S. Navy public relations policies and practices during World War II. Klinkerman, Robert Dale. (University of Wisconsin, 1972);
Tonthat, Tom (Naval Postgraduate School, Monterey California, 2021-07-01);During the 18th annual Acquisition Research Symposium (ARP) in May, Naval Postgraduate School (NPS) students presented theses and research projects to the Department of Defense (DOD) acquisition commu... Read More
Lang, Danny M. (Monterey, California: Naval Postgraduate School, 2015-12);This thesis investigated five specific phase-shift keyed (PSK) modulated signals for usage in Spotlight Synthetic Aperture Radars (SAR) and the effects each of the individual PSK signals sidelobe structure has on SAR ...