Ultrasound and Surface Elastic Waves (Development Technology of Original Ultrasound System)

The Ultrasonic System Research Institute has developed a technology that applies the control of ultrasound and fine bubbles within a water tank to stimulate the surfaces of various materials and components with megahertz acoustic flow. In particular, the homogenization of surface residual stress has led to many achievements. << Deaeration Fine Bubble (Microbubble) Generation Liquid Circulation Device >> 1) By narrowing the suction side of the pump, cavitation is generated. 2) Bubbles of dissolved gas are produced due to cavitation. The above describes the state of the deaeration liquid circulation device. ... 6) In a stable and controllable state of ultrasound, the original product: a megahertz ultrasonic oscillation control probe is used to control the oscillation of megahertz (1-20 MHz) ultrasound. The optimization method for cavitation and acoustic flow achieves effective dynamic control of ultrasound by controlling the original nonlinear resonance phenomenon of liquid circulation and megahertz ultrasound. By organizing previous consulting responses, sound pressure measurements, and analyses, we have confirmed various know-how (specific methods related to individual objects and devices) and developed usage methods. If you are interested, please contact us via email.

<< 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 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 an ultrasonic oscillation control probe that optimizes the interaction of ultrasonic vibrations based on various analysis results of ultrasonic propagation states obtained through an original ultrasonic system (sound pressure measurement analysis and oscillation control). This probe enables the control of resonance phenomena and nonlinear phenomena. Note: Resonance phenomena (low harmonics) and nonlinear phenomena (high harmonics) are controlled by setting oscillation control conditions based on a logical model.