Cleaning technology using ultrasound and fine bubbles (microbubbles)

The Ultrasonic System Research Institute has released a technology that applies measurement, analysis, and control techniques related to the propagation state of ultrasound to alleviate the surface residual stress of ultrasonic transducers using an ultrasonic and microbubble generation liquid circulation system. This technology for alleviating surface residual stress enables improvements in fatigue strength against metal fatigue. In particular, by considering the guided waves (surface elastic waves) of the target object in the propagation state of ultrasound, we have developed a method to realize effective ultrasonic irradiation conditions through settings, tooling, and control. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. Ultrasonic Probe: Overview Specifications - Measurement Range: 0.01 Hz to 200 MHz - Oscillation Range: 1.0 kHz to 25 MHz - Propagation Range: 0.5 kHz to over 900 MHz (analysis confirmation of sound pressure data) - Materials: Stainless steel, LCP resin, silicon, Teflon, glass, etc. - Oscillation Equipment: Example - Function Generator - Measurement Equipment: Example - Oscilloscope

The Ultrasonic System Research Institute is applying measurement, analysis, and evaluation techniques related to the propagation state of ultrasound to publish technology that relaxes the surface residual stress of ultrasonic transducers using ultrasound and fine bubbles. This technology for relaxing surface residual stress has made it possible to improve fatigue strength against metal fatigue. As a result, the effects on various components, including ultrasonic tanks, have been demonstrated. Ultrasonic Probe: Outline Specifications Measurement Range: 0.01 Hz to 200 MHz Oscillation Range: 1.0 kHz to 25 MHz Propagation Range: 0.5 kHz to over 900 MHz (confirmation of acoustic pressure data analysis) Materials: Stainless steel, LCP resin, silicon, Teflon, glass, etc. Oscillation Equipment: Example - Function Generator Measurement Equipment: Example - Oscilloscope By controlling oscillation, we achieve propagation states tailored to the objectives regarding sound pressure level, frequency, and dynamic characteristics. 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 completely new dynamic control technology for ultrasound by utilizing multiple function generators. This technology enables the control of nonlinear ultrasonic phenomena through oscillation with several different waveforms (sweeping). Note: Nonlinear (resonance) phenomena By generating harmonics of the 10th order or higher through original oscillation control and resonating with low-frequency vibration phenomena, the generation of high-amplitude harmonics has been achieved, resulting in nonlinear (resonance) phenomena of ultrasonic vibrations. By optimizing the ultrasonic propagation characteristics of various components according to their intended purpose, efficient ultrasonic oscillation control becomes possible. Through the measurement and analysis of sound pressure data from ultrasonic testers, this system technology dynamically controls the changes in surface elastic waves according to the intended application. Ultrasonic Oscillation Control Probe Measurement and analysis range: 1 Hz to 200 MHz Oscillation range: 0.5 kHz to 25 MHz Ultrasonic propagation range: 5 kHz to over 900 MHz (analysis confirmed) Ultrasonic propagation characteristics: 1) Detection of vibration modes 2) Detection of nonlinear phenomena 3) Detection of response characteristics 4) Detection of interactions

The Ultrasonic System Research Institute conducts consulting related to the use of ultrasound 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 obtained using ultrasonic testers in a time series, we have developed a new evaluation standard (nonlinear phenomenon analysis parameters) that indicates the state of ultrasound suitable for the purpose. Note: - Nonlinear characteristics (harmonic generation characteristics) - Response characteristics - Fluctuation characteristics - Effects due to interactions 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)