Technology for controlling nonlinear vibration phenomena of ultrasound.

"Flow and Shape of Ultrasound: The Constructal Law" -- Control technology for acoustic flow utilizing the Constructal Law -- The Ultrasound System Research Institute has developed ultrasound utilization technology (control of nonlinear phenomena) using the "Constructal Law" related to flow and shape. This was developed with inspiration from the observation of river flows. Regarding ultrasound utilization, we believe that the experience of observing flow allows for an intuitive understanding of acoustic flow (nonlinear phenomena of ultrasound). Acoustic Flow <General Concept> When finite amplitude waves propagate within a gas or liquid, acoustic flow occurs. Acoustic flow is a unidirectional steady flow of matter that arises either as a result of viscous losses from wave pulses in a free heterogeneous field or in the vicinity of obstacles (cleaning materials, jigs, liquid circulation) within an acoustic field, or near vibrating objects due to inertial losses. By organizing the technology to measure, analyze, evaluate, and utilize (control) "nonlinear phenomena" in ultrasound propagation phenomena through the "Constructal Law," which aims to improve flow, we have consolidated it into ultrasound technology.

The Ultrasonic System Research Institute has developed a technology that applies the measurement and analysis of ultrasonic states propagating in liquids within an ultrasonic tank to set and control the propagation state of ultrasound (acoustic flow, cavitation) according to specific purposes, taking into account the influences of the tank's structure, strength, manufacturing conditions, and the state of liquid circulation. This technology analyzes and evaluates the dynamic characteristics of complex ultrasonic vibrations (Note 1) in relation to various factors, allowing for the setting of physical stimulation and chemical reactions through ultrasound according to specific objectives, based on the configuration method of the circulation pump (Note 2). Note 1: This utilizes the original technology of the Ultrasonic System Research Institute, which incorporates "ultrasonic oscillation control" technology that considers "timbre." "Ultrasonic oscillation control" technology that considers "timbre." Note 2: The settings regarding the relationship between the tank, circulating liquid, and air are proprietary know-how. This technology can also be applied to tanks that do not have an overflow structure. This technology is provided as a consulting service for improving the liquid circulation methods of ultrasonic systems. Ultrasonic propagation characteristics: vibration modes, nonlinear phenomena, response characteristics, interactions.

- Experimental and Research Cycle of Abstract Algebra Models and Ultrasonic Phenomena - Basic Information The Ultrasonic System Research Institute has developed ultrasonic <dynamic control> technology that optimizes the interaction of ultrasonic vibrations based on various analysis results of ultrasonic propagation states using an original ultrasonic system (sound pressure measurement analysis and oscillation control). 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 concerning the entire propagation path of ultrasonic vibrations, including various propagation tools. This is a method and technology that can be applied immediately in practical applications and is proposed and addressed as consulting (with increasing achievements in precision cleaning and stirring at the nano level). 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 characteristics) 4) Detection of interactions (analysis of power contribution rates)

The Ultrasonic System Research Institute has developed a technology to utilize (control) "nonlinear phenomena related to the generation of harmonics in ultrasound" by analyzing ultrasonic sound pressure measurement data (bispectral analysis, etc.) according to specific purposes. With this technology, when using multiple ultrasonic transducers of different frequencies, it becomes possible to set (manage) the propagation state of ultrasound influenced by harmonics. Therefore, it enables the realization of appropriate or effective combinations of frequencies. This is very effective as it allows for the detection and confirmation of effective propagation states for cleaning, surface modification, and the promotion of chemical reactions. Furthermore, by combining the control of standing waves with liquid circulation control, dynamic control becomes possible to change the effects of cavitation and acceleration (acoustic flow) according to the intended purpose. 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 characteristics) 4) Detection of interactions (analysis of power contribution rates)