Surface modification technology (stress relaxation) of ultrasonic beauty devices.

<< Deaeration Fine Bubble (Microbubble) Generation Liquid Circulation Device >> 1) By narrowing the suction side of the pump, cavitation is generated. 2) Cavitation causes bubbles of dissolved gas to form. The above describes the state of the deaeration liquid circulation device. 3) When the concentration of dissolved gas decreases, the bubble size of the dissolved gas due to cavitation becomes smaller. 4) Through appropriate liquid circulation, fine bubbles (microbubbles) of less than 20μ are generated. The above describes the state of the deaeration microbubble generation liquid circulation device. 5) When ultrasonic waves are applied to the above deaeration fine bubble (microbubble) generation liquid circulation device, the ultrasonic waves disperse and crush the fine bubbles (microbubbles), and when measuring the fine bubbles (microbubbles), the distribution amount of ultra-fine bubbles becomes greater than that of fine bubbles. The above state indicates that ultrasonic waves can be stably controlled. 6) In a state where ultrasonic waves can be stably controlled, the original product: a megahertz ultrasonic oscillation control probe is used to control the oscillation of ultrasonic waves in the megahertz range (1-20 MHz).

The Ultrasonic System Research Institute is developing technologies related to effective "measurement, analysis, and evaluation methods" utilizing a <statistical approach> in the field of ultrasonic applications. <About the statistical approach> Statistical mathematics has both abstract and concrete aspects, and through contact with concrete entities, abstract ideas or methods are developed. This is the characteristic of statistical mathematics. (From "Statistics in Science" edited by Hiroshi Akaike) <Reference> The original software (analysis system) developed and created with reference to the program attached in the following book is executed and analyzed using the open-source statistical analysis system "R": "Fluctuations and Rhythms of Living Organisms: An Introduction to Computer Analysis" by Takao Wada, supervised by Hiroshi Akaike, Kodansha. Propagation characteristics of ultrasound: 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 has developed a technology that efficiently alleviates surface residual stress in components by controlling the nonlinear propagation state of ultrasound, utilizing the acoustic characteristics of the target objects through measurement, analysis, and control techniques related to the propagation state of ultrasound. With this technology to alleviate surface residual stress, it has become possible to improve the fatigue strength against metal fatigue. In particular, by considering the guided waves (surface elastic waves) of the target object in the settings of the ultrasound propagation state, we have developed control methods and tools that realize effective nonlinear stimulation to the target object. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. This technology is offered as a consulting service. Ultrasound 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 applied technology utilizing surface acoustic waves through ultrasonic control. By combining ultrasound and surface acoustic waves, we achieve dynamic control of ultrasonic propagation. The key point is the ability to efficiently control nonlinear phenomena caused by surface acoustic waves. As specific technologies, we have developed system technologies that control nonlinear phenomena (bi-spectral) resulting from the interaction of ultrasound with water tanks and tools, tailored to specific purposes (cleaning, stirring, stress relief, inspection, etc.). As a result of utilizing measurement and analysis techniques for ultrasonic propagation states, we have confirmed the realization of harmonic control and the ability to adjust nonlinear phenomena. The know-how lies in confirming and responding to the acoustic characteristics of the system (measurement, analysis, evaluation).