Ultrasonic Oscillation Control System (Ultrasonic System Research Institute)

The Ultrasonic System Research Institute has developed a new technology for controlling standing waves through the installation method of ultrasonic transducers, enabling the control of cavitation and acceleration (acoustic flow) effects. With this technology, it is possible to stir, atomize, clean, and modify liquids ranging from 300 to 6000 liters, which require a large amount of energy. - Application examples of the developed technology - Stirring and dispersing nano-level catalysts in solvents (stirring and dispersing carbon nanotubes in plating solutions and paints). Achieving appropriate ultrasonic irradiation for cleaning targets with varying adhesion strengths due to multiple contaminants, or for surface modification of complex-shaped parts. The most effective examples include surface modification of metal and resin parts and materials (relaxation of residual stress). Ultrasonic propagation characteristics: 1) Detection of vibration modes (changes in autocorrelation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response) 4) Detection of interactions (analysis of power contribution rates)

The Ultrasonic System Research Institute conducts consulting related to ultrasonic applications by utilizing a technology that measures, analyzes, and evaluates the propagation state of ultrasound, applying feedback analysis techniques based on multivariate autoregressive models. By organizing the measurements, analyses, and results (note) obtained using ultrasonic testers in chronological order, we establish and confirm new evaluation criteria (parameters) that indicate the state of ultrasound suitable for the purpose. Note: Nonlinear characteristics (dynamic characteristics of acoustic flow, bispectrum, autocorrelation... analysis results) We believe that this technology can be applied in various fields and are implementing proposals in various consulting services. We have published materials related to this technology. Ultrasonic Probe: Overview Specifications Measurement Range: 0.01 Hz to 100 MHz Oscillation Range: 1 kHz to 25 MHz Propagation Range: 1 kHz to over 900 MHz Materials: Stainless steel, LCP resin, silicone, Teflon, glass... Ultrasonic Propagation Characteristics 1) Detection of vibration modes (changes in autocorrelation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics 4) Detection of interactions

The Ultrasonic System Research Institute has developed application technologies for ultrasonic systems using a quantum mechanics model based on "the mathematics of the shape and sound of drums" and "fundamental experiments and analyses on ultrasonic propagation phenomena." As a fundamental application of this technology, we have realized rational design techniques and standards for ultrasonic systems tailored to the purposes of ultrasonic utilization. The technology developed this time was achieved through an abstract algebra model that adapts the oscillation and propagation states of ultrasound to the quantum mechanical wave function. Unlike previous development methods, we determine the control conditions of the system by interpreting the energy levels (corresponding to the order of harmonics) of the ultrasonic propagation state of the target object as perturbations (results from bispectral analysis) of nonlinear phenomena and sound (low-frequency vibrations). Furthermore, through the "evaluation technology for ultrasonic devices" at the Ultrasonic System Research Institute, we have confirmed specific effects of this method. As application examples, there has been an increase in proposals for "ultrasonic welding," "ultrasonic processing," and "ultrasonic plating," among others.

- Technology for controlling nonlinear ultrasonic phenomena: Nanolevel stirring, emulsification, dispersion, and grinding technology - The Ultrasonic System Research Institute has developed effective stirring (emulsification, dispersion, grinding) technology utilizing the technology for controlling nonlinear ultrasonic phenomena (acoustic flow). This technology controls ultrasonic (cavitation, acoustic flow) by utilizing (evaluating) the ultrasonic propagation characteristics (analysis results) of indirect containers, ultrasonic tanks, and other equipment through surface inspection. Furthermore, it realizes effective ultrasonic (cavitation, acoustic flow) propagation states tailored to the structure, material, and acoustic properties of specific target objects, in accordance with the interactions between glass containers, ultrasonic waves, and target objects, through ultrasonic oscillation control. In particular, the dynamic characteristics of harmonics achieved through acoustic flow control enable responses at the nanolevel. It has been developed from applications involving the dispersion of metal powders to nanosize. By employing control technologies for standing waves and cavitation in relation to ultrasonic waves, as well as propagation control technologies for indirect containers, appropriate stirring is performed using cavitation and acoustic flow.