Development and manufacturing technology of ultrasonic propagation tools based on the control of surface acoustic wave propagation.

The Ultrasonic System Research Institute has developed ultrasonic cleaning technology that enables control of acoustic flow (ultrasonic propagation state) in the range of 1-100 MHz for portable ultrasonic cleaners. This is a new application technology for precision cleaning, processing, and stirring based on the measurement, analysis, evaluation, and technology of ultrasonic propagation states. By utilizing the acoustic properties (surface elastic waves) of various materials, ultrasonic stimulation can be controlled with an output of less than 20W, even in a 1000-liter water tank. It was developed as an application method for nonlinear phenomena through an engineering (experimental and technical) perspective on elastic wave propagation and an abstract algebraic ultrasonic model. The key point is the use of tools (elastic bodies: metal, glass, resin). By confirming the propagation characteristics of ultrasonic waves based on the conditions of the target object, it is important to address it as an original nonlinear resonance phenomenon (Note 1). Note 1: Original Nonlinear Resonance Phenomenon This occurs due to the generation of harmonics resulting from original oscillation control, which is realized at high amplitudes through resonance phenomena, leading to ultrasonic vibration resonance phenomena.

The Ultrasonic System Research Institute will hold an ultrasonic seminar as follows: Learn the fundamentals of cleaning and improve nano-level precision cleaning with knowledge and know-how that do not rely solely on experience and intuition! Instructor: Kazuyuki Saiki, Representative of the Ultrasonic System Research Institute Date and Time: October 23, 2024 (Wednesday) 13:00 - 17:00 Participation Fee: 25,000 yen (including tax), which includes the cost of materials. Venue: Online Course You can participate from anywhere in the country, whether from your workplace or home. We will use "ZOOM." Organized by: New Technology Development Center Co., Ltd. ● Recommendation for Participation A simple mindset of "cleaning can be done with ultrasonic cleaners and cavitation" will not lead to improvements in precision cleaning. A deep understanding of the cleaning target is essential for enhancing the cleaning level. ... However, in nano-level precision cleaning, there are limitations to responding based on experience and intuition. This seminar will allow you to revisit the basics of cleaning, understand the fundamentals, and learn cleaning cases and know-how using videos, significantly improving precision cleaning techniques utilizing ultrasound.

The Ultrasonic System Research Institute has developed an ultrasonic oscillation control probe based on the acoustic properties of glass containers. By confirming the basic acoustic characteristics (response characteristics, propagation characteristics) depending on the shape and material of each container, it enables the desired ultrasonic propagation state through oscillation control (output, waveform, oscillation frequency, variations, etc.). The key point is to evaluate the dynamic vibration characteristics of the system based on the measurement and analysis of sound pressure data. We are establishing and confirming new evaluation criteria (parameters) that indicate the suitable state of ultrasound for the purpose. Note: - Nonlinear characteristics (dynamic characteristics of harmonics) - Response characteristics - Characteristics of fluctuations - Effects due to interactions By developing original measurement and analysis methods that consider the acoustic properties and surface elastic waves of the target object, referencing the ideas of statistical mathematics, we have developed a new technology regarding the relationships of various detailed effects related to vibration phenomena. The specific conditions for oscillation control are determined based on experimental confirmation, as they are also influenced by the characteristics of ultrasonic probes and oscillation equipment. As a result, there are increasing examples and achievements demonstrating that the new nonlinear parameters are very effective.

The Ultrasonic System Research Institute has developed vibration measurement technology using ultrasound. This technology is manufactured and sold as a "vibration measurement device," and consulting services are provided for "ultrasound-based vibration measurement technology." Points: 1) By generating megahertz ultrasonic waves, vibrations below 100 kHz can be detected more easily. 2) Control of megahertz ultrasonic wave generation enables the detection of megahertz vibration modes. Ultrasonic Probe for Vibration Measurement: Outline Specifications - Measurement Range: 0.01 Hz to 100 MHz - Generation Range: 1 kHz to 25 MHz - Propagation Range: 1 kHz to over 900 MHz - Materials: Stainless steel, LCP resin, silicon, Teflon, glass, etc. - Measurement Equipment: Example - Oscilloscope - Generation Equipment: Example - Function Generator Vibration 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) Note: "R" is a free statistical processing language and environment autcor, bispec, mulmar, mulnos