ALUPRO-MPI ULTRASONICS INC.
Large volume ultrasonic treatment of molten metals. Why it now finally works.
ALUPRO-MPI Ultrasonics Inc.
The MMM technology
Modulated, Multimode, Multifrequency sonic & ultrasonic vibrations can be excited in most any heavy-duty system by producing pulse-repetitive, phase, frequency and amplitude -modulated bulkwave-excitation covering and sweeping an extremely wide frequency band.
Every elastic mechanical system has many vibration modes, plus harmonics and sub harmonics, both in low and ultrasonic frequency domains. Many of these vibrating modes are acoustically and/or mechanically coupled, others are relatively independent.
The MMM multimode sonic and ultrasonic excitation has the potential to synchronously excite many vibrating modes through the coupled harmonics and sub harmonics in solids and liquid containers to produce high intensity vibrations that are uniform and repeatable.
Such sonic and ultrasonic driving creates uniform and homogenous distribution of acoustical activity on a surface and inside of the vibrating system, while avoiding the creation of stationary and standing waves, so that the whole vibrating system is fully agitated.
Basic Elements of MMM Systems & How MMM Systems Operate
Ultrasonic systems based on our unique MMM (Multi-frequency, Multimode, Modulated) technology may be used as structural actuators capable of delivering high power sonic and ultrasonic energy to a large or small loads. MMM uses proprietary techniques to initiate ringing and relaxing multimode (wideband high and low frequency) mechanical oscillations in a mechanical body to produce pulse-repetitive, frequency, phase and amplitude modulated bulk-wave excitation on that body.
MMM (Modulated, Multimode, Multifrequency) ultrasonic generators utilize a new and proprietary technology capable of stimulating wideband sonic and ultrasonic energy, ranging in frequency from infrasonic up to the MHz domain, that propagates through arbitrary shaped solid structures. Such industrial structures may include heavy and thick walled metal containers, pressurized reservoirs, very thick metal walled autoclaves, extruder heads, extruder chambers, mould tools, casting tools, large mixing probes, various solid mechanical structures, contained liquids, and ultrasonic cleaning systems.
Every elastic mechanical system, body, or resonator that can oscillate has many vibrating modes as well as frequency harmonics and sub harmonics in the low and ultrasonic frequency domains. Many of these vibrating modes can be acoustically and/or mechanically coupled while others would stay relativelyindependent. The MMM technology can utilize these coupled modes by applying advanced Digital Signal Processing to create driving wave forms that synchronously excite many vibrating modes (harmonics and sub harmonics) of an acoustic load.
This technique produces uniform and homogenous distribution ofhigh-intensity acoustical activity to make the entire available vibrating domain acoustically active whileeliminating the creation of potentially harmful and problematic stationary and standing waves structures. This is not the case for traditional ultrasonic systems operating at a stable frequency where creation of standing waves structures is the norm.
