Meters energy and frequency in ultrasonic and megasonic cleaning tanks used in the semiconductor, wafer, disk drive, flat-panel display, electronics and parts precision cleaning industries.

United States Patent: 6,146,674

Nondestructive Evaluation Sciences Branch Langley Research Center.

Unclassified/commercial mind control technology.

AQUAMATIC, Denmark

The Audio Spotlight (TM) uses subtle nonlinear properties of the air to create an extremely narrow sound beam. This beam ofsound behaves just like a beam of light - 'shining' it at a specific listener allows only that person to hear it, and projecting it against a surface creates an acoustic 'image' at the point of reflection. It is the first device that provides total control over both the location and distribution of high quality sound, something impossible to achieve with traditional loudspeakers.

Peter Hoekje, Assistant Professor, Department of Physics, UNI

NASA (USA)

sonic shockwaves

Includes a first and a second transducer coupled together through a coupling medium communicating undulating pressure wave for the transfer of electrical power into an undulating pressure wave communicated into an electrical response. This is a signal that can be converted into useful power for an embedded sensory and actuation control unit. The primary advantage is the transfer of power through a coupling medium without the use of electrical power wires.

Electronic kit. Hear car brakes, gas leaks or even bats.

The 2047U/C combines the features of a standard electronic stethoscope - with those of an ultrasonic (sounds higher in frequency than the ear can hear) detector.