Consulting for Ultrasonic System Development Based on Sound Pressure Measurement Analysis 2

－－Abstract Algebra Model and Ultrasonic Experimentation and Examination Cycle－－ (Optimization Techniques for Resonance Phenomena and Nonlinear Phenomena) The Ultrasonic System Research Institute has developed ultrasonic <dynamic control> technology that optimizes the interaction of ultrasonic vibrations based on various analytical results of ultrasonic propagation states obtained through an original ultrasonic system (sound pressure measurement analysis and oscillation control) using an abstract algebra model. Note: Control of resonance phenomena (low harmonics) and nonlinear phenomena (high harmonics) is achieved by setting oscillation control conditions based on a logical model. Compared to previous control technologies, this technique establishes and implements optimal control states tailored to the purposes of ultrasonic applications (cleaning, stirring, processing, etc.) through new measurement and evaluation parameters (note) concerning the entire propagation path of ultrasonic vibrations, including various propagation tools. This is a method and technology that can be applied immediately, and we are proposing and responding to it as a consulting service (there is an increasing track record in precision cleaning, stirring, and processing at the nano level). Note: Parameters: Power spectrum, autocorrelation, bispectrum, power contribution ratio, impulse response characteristics, and others.

--- Control of Chemical Reactions through Nonlinear Ultrasonic Phenomena --- The Ultrasonic System Research Institute has developed an experimental device for controlling chemical reactions using ultrasonic waves by utilizing the technology to control nonlinear ultrasonic phenomena (acoustic flow). This technology controls ultrasonic waves (cavitation and acoustic flow) tailored to specific purposes by measuring and confirming the interactions within the container and through ultrasonic control using a megahertz ultrasonic oscillation probe. Note: Ultrasonic Control By setting the oscillation conditions for sweep oscillation and pulse oscillation using two types of nonlinear resonant ultrasonic oscillation probes, it dynamically controls high-frequency propagation states above 30 MHz through high sound pressure resonance phenomena and harmonic generation phenomena (nonlinear phenomena). Note: Ultrasonic Control "Precision Cleaning Example" Sweep Oscillation: 70 kHz - 15 MHz, 15 W Pulse Oscillation: 13 MHz, 8 W In particular, the dynamic characteristics of harmonics through acoustic flow control enable reactions and responses at the nano level. This has been applied and developed from the example of dispersing metal powder to nanosize.

The Ultrasonic System Research Institute has developed ultrasonic system technology that enables the control of ultrasonic propagation states above 1-900 MHz by installing a megahertz ultrasonic oscillation control probe in resin containers. By measuring, analyzing, evaluating, and technically assessing the ultrasonic propagation characteristics of containers and mounting components, effective ultrasonic irradiation for precision cleaning, processing, stirring, welding, and plating can be achieved. This represents a new application technology for ultrasound. Utilizing various acoustic properties (surface elastic waves) based on the structure, shape, and manufacturing methods of various materials, ultrasonic stimulation can be controlled for objects weighing several tons even in a 1000-liter water tank with an ultrasonic output of less than 20W. This was developed as an application method for nonlinear phenomena through an engineering (experimental and technical) perspective on elastic waves and an abstract algebraic model of ultrasound. Ultrasonic propagation characteristics: 1) Detection of vibration modes (changes in self-correlation) 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 has developed a "Dynamic Control Method for Megahertz Ultrasound" by applying Shannon's Juggling Theorem. << Application of Shannon's Juggling Theorem >> (F + F2 + ...) * H = (V + V2 + ...) * N F: The oscillation ratio of the base ultrasonic 1 F2: The oscillation ratio of the base ultrasonic 2 F3: The oscillation ratio of the base ultrasonic 3 H: Basic time (maximum control cycle time) (H = MAX(oscillation cycle of ultrasonic 1, oscillation cycle of ultrasonic 2, ...)) V: Megahertz oscillation cycle time by ultrasonic probe 1 V2: Megahertz oscillation cycle time by ultrasonic probe 2 V3: Megahertz oscillation cycle time by ultrasonic probe 3 V4: Megahertz oscillation cycle time by ultrasonic probe 4 (In the case of pulse oscillation, cycle time = 1) N: Adjustment parameters for harmonics 7, 11, 13, 17, 23, 43, 47, ... The key point (know-how) is to control the occurrence state of nonlinear phenomena based on the measurement, analysis, and evaluation of sound pressure data.