Cleaning technology using ultrasound and fine bubbles (microbubbles)

Based on sound pressure measurement analysis, ultrasonic optimization technology allows for the efficient and stable use of ultrasound tailored to specific purposes.

The Ultrasonic System Research Institute has developed a technology that utilizes "ultrasonic transducers" of multiple different frequencies. This technology, in addition to standing wave control technology, adjusts the output of each ultrasonic transducer to vary the nonlinear effects of cavitation and acceleration according to specific purposes. By using ultrasonic transducers with a frequency of 40 kHz and an output of 50-600 W, it is possible to disperse a 1-millimeter diameter metal tube into a 1-micron state, as well as to clean it without causing damage. Through original measurement and analysis technology for ultrasonic propagation states, we are confirming various ultrasonic utilization technologies tailored to the unique characteristics of the transducers. This is a new ultrasonic technology that, including the general effects of ultrasonic dynamic characteristics, can be utilized and developed as a distinctive operational technology for the development of new materials, stirring, dispersion, cleaning, chemical reaction experiments, and more. Ultrasonic propagation characteristics: 1) Vibration modes (changes in self-correlation) 2) Nonlinear phenomena (changes in bispectrum) 3) Response characteristics (analysis of impulse response) 4) Interactions (analysis of power contribution rates)

• pump

Design, development, manufacturing, and technology of ultrasonic equipment tailored to specific purposes based on the measurement and analysis of ultrasonic vibrations—aging treatment of ultrasonic equipment.

Development of a Dedicated Ultrasonic Tank The Ultrasonic System Research Institute has developed a dedicated ultrasonic tank by applying measurement technology related to the propagation state of ultrasound. As a result of using the newly developed dedicated ultrasonic tank for ultrasonic cleaning and surface modification, it has become easier to control not only the utilization efficiency of ultrasound but also the propagation states of cavitation and acceleration. This represents a completely new manufacturing technology (Note) for tanks and surface treatment technology, and it has been confirmed to be a significant achievement through measurement and analysis of the states. Note: Original design, manufacturing, and adjustment methods. This method and technical know-how are offered as part of our consulting services. 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) Note: "R" is a free statistical processing language and environment. autcor: autocorrelation analysis function bispec: bispectrum analysis function mulmar: impulse response mulnos: power contribution rate

• pump
• Other measuring instruments
• others

Ultrasonic control technology based on the classification of nonlinear phenomena in which ultrasonic vibrations propagate.

The Ultrasonic System Research Institute has developed a classification method for the phenomenon of ultrasonic vibration propagation by analyzing measurement data of ultrasonic propagation states using bispectral analysis. The method developed in this instance estimates the linear and nonlinear resonance effects based on the dynamic characteristics (changes in nonlinear phenomena) of the main frequencies (power spectrum) related to the ultrasonic propagation state. From previous data analysis, we have been able to classify effective utilization methods into the following four types: 1: Linear type 2: Nonlinear type 3: Mixed type 4: Variable type There are numerous successful cases of device development and control settings based on each of the above types. This technology will be offered as a consulting service. 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) Note: The following tools will be used for analysis. Note: "R" is a free statistical processing language and environment.

• Other Software

Control technology for acoustic flow (the main cause of ultrasonic effects: nonlinear phenomena) using ultrasound and fine bubbles.

The Ultrasonic System Research Institute has developed a method (system) for the <analysis and evaluation> of ultrasound, applying "measurement, analysis, and control" technology related to the nonlinearity of ultrasound. We provide consulting for a degassing microbubble generation liquid circulation system utilizing this technology. To utilize (control) the complex and changing conditions of ultrasound in a stable state, we conduct consulting to add the degassing microbubble generation liquid circulation system to specific tanks present on-site. 1: Explanation of principles 2: Specific proposals tailored to the cleaning machine (device) 3: Explanation of know-how 4: Explanation of verification methods, adjustment methods, and maintenance methods Development of nonlinear vibration control technology using fine bubbles and megahertz ultrasound Regarding this technology, we provide consulting as "vibration measurement technology utilizing ultrasound." 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 characteristics) 4) Detection of interactions (analysis of power contribution rates)

• pump
• Other analytical equipment
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We provide on-site services for the measurement, analysis, and evaluation of ultrasonic equipment.

Application of technology to analyze and evaluate the dynamic characteristics of ultrasound The Ultrasound System Research Institute has developed a method (system) for the <analysis, experimentation, and evaluation> of ultrasound, utilizing "measurement, analysis, and control" technology related to the nonlinearity of ultrasound. Using this technology, we conduct <sound pressure measurement, experimentation, analysis, and evaluation> (including on-site support) for ultrasonic cleaning machines. To evaluate the complex and varying usage conditions of ultrasound, we do not rely solely on sound pressure and frequency; instead, we consider "timbre." We analyze it using a time series data autoregressive model and report and propose <evaluation and application> based on statistical models.

• pump
• Turbid water and muddy water treatment machines
• Manufacturing Technology

A system suitable for management and examination related to ultrasound, including oscillation, measurement, and analysis.

The Ultrasonic System Research Institute (Location: Hachioji City, Tokyo) manufactures and sells custom-made ultrasonic oscillation, measurement, and analysis systems suitable for the management and examination of ultrasonic propagation conditions. << Ultrasonic Oscillation Measurement and Analysis System >> A set that enables optimal ultrasonic cleaning "management" and "examination" by confirming the acoustic characteristics of parts from sound pressure management of ultrasonic cleaners. 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) Note: "R" is a free statistical processing language and environment. autcor: autocorrelation analysis function bispec: bispectrum analysis function mulmar: impulse response analysis function mulnos: power contribution rate analysis function

• Other measuring instruments
• others

Ultrasonic plating treatment technology using fine bubbles and megahertz ultrasonic waves.

The Ultrasonic System Research Institute has been developing ultrasonic plating treatment technology utilizing fine bubbles and megahertz ultrasound in collaboration with Japan Barrel Industry Co., Ltd. since 2015. Note: As of August 2024, it is continuously evolving based on good results into various application technologies. 1) Cleaning, processing, welding, plating... surface treatment... 2) Chemical reactions, liquid homogenization, stirring... 3) Inspection, evaluation... 4) Optimization control of ultrasound and fine bubbles tailored to specific purposes. Currently, in collaboration with Japan Barrel Industry Co., Ltd., we are developing application technologies utilizing ultrasound and fine bubbles for iron plating treatment (iron powder, amorphous, megahertz ultrasound...). If you are interested, please contact us via email. 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)

• Non-destructive testing
• Other measuring instruments
• others

Technology for stirring, emulsifying, dispersing, and grinding at the nanoscale using techniques to control nonlinear phenomena of ultrasound.

The Ultrasonic System Research Institute has developed an effective stirring (emulsification, dispersion, grinding) technology utilizing "technology to control nonlinear phenomena of ultrasound (acoustic flow)." This technology controls ultrasound (cavitation, acoustic flow) by utilizing (evaluating) the ultrasonic propagation characteristics (analysis results) of indirect containers through surface inspection, ultrasonic tanks, and other items. Furthermore, it realizes effective ultrasonic (cavitation, acoustic flow) propagation states tailored to the structure, material, and acoustic properties of specific target objects, by controlling the oscillation of ultrasound in accordance with the interactions between glass containers, ultrasound, and target objects. In particular, the dynamic characteristics of harmonics through acoustic flow control enable responses at the nano level. It has been applied and developed from examples of dispersing metal powders to nanosize. November 2023: Developed ultrasonic oscillation control technology to control nonlinear phenomena. January 2024: Developed technology to measure, analyze, and evaluate the interactions of ultrasonic vibrations. February 2024: Developed surface treatment technology using megahertz ultrasound. April 2024: Developed optimization technology for resonance phenomena and nonlinear phenomena.

• Concrete admixture
• Non-destructive testing
• others

Acoustic flow control technology using ultra-fine bubbles and megahertz ultrasound.

<<Deaeration Fine Bubble 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 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-mentioned deaeration fine bubble generation liquid circulation device, the ultrasonic waves disperse and crush the fine bubbles, and when measuring the fine bubbles, the distribution of ultrafine bubbles becomes greater than that of fine bubbles. The above state indicates that ultrasonic waves can be stably controlled. 6) In the state where ultrasonic waves can be stably controlled, the original product: a megahertz ultrasonic oscillation control probe is used to control the oscillation of megahertz (1-20 MHz) ultrasonic waves. The method of controlling the sound pressure level is achieved by controlling the original nonlinear resonance phenomenon of liquid circulation and megahertz ultrasonic waves, setting and controlling it to an effective dynamic state.

• Water Treatment
• Other measuring instruments
• others

Optimization technology for ultrasonic cleaning machines

(Development of a control system based on measurement and analysis of ultrasonic cleaning machines) The Ultrasonic System Research Institute has developed a technology that applies techniques for measuring and analyzing the state of ultrasonic cleaning machines, which propagate through the liquid, to set and control the state of ultrasonic cleaning machines according to specific purposes, taking into account the effects of tank structure, strength, manufacturing conditions, and liquid circulation state. This technology analyzes and evaluates the dynamic characteristics of complex ultrasonic vibrations (Note 1) in relation to various factors, allowing for the setting of cavitation and acceleration effects according to specific objectives through the configuration of circulation pump settings (Note 2). Note 1: This utilizes the original technology of the Ultrasonic System Research Institute, which employs "ultrasonic oscillation control" technology that considers "timbre." Note 2: The know-how involves settings related to the relationships between the cleaning machine, cleaning solution, and air at their respective boundaries. It can also be applied to cleaning tanks that do not have an overflow structure. Regarding the self-organization of micro-flows, control of acoustic flow has been made possible through degassing, aeration, ultrasound, and elastic wave dynamics on the tank surface.

• pump
• Other analytical equipment
• others

Ultrasonic cleaning technology based on the measurement, analysis, and evaluation of ultrasonic propagation conditions.

The Ultrasonic System Research Institute has developed technology that applies "measurement, analysis, and control" techniques related to the nonlinearity of ultrasound to analyze and evaluate the dynamic characteristics of ultrasonic vibrations propagating through various targets (elastic bodies, liquids, gases). This technology optimizes interactions concerning cleaning objects, tools, ultrasonic transducers, water tanks, and liquid circulation according to specific purposes. Through previous oscillation, measurement, and analysis using ultrasonic oscillation control probes and ultrasonic testers, we have developed optimization technology for ultrasonic utilization by examining various relationships and response characteristics (Note: power contribution rate, impulse response, etc.). Regarding the measurement and analysis of ultrasound, the setting of sampling time utilizes original simulation technology. This technology is provided as consulting for the optimization of ultrasonic systems (cleaning, stirring, processing, etc.). The propagation characteristics of ultrasound include: 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 rate)

• Vibration and Sound Level Meter
• Scientific Calculation and Simulation Software
• others

Optimization of cavitation and acoustic flow using a degassed fine bubble generation liquid circulation device.

The Ultrasonic System Research Institute has developed an ultrasonic cleaning machine utilizing microbubbles, based on measurement, analysis, and evaluation techniques related to ultrasonic propagation phenomena, which can also be used for ultrasonic processing, stirring, and chemical reactions. Recommended System Overview 1: Two types of ultrasonic transducers (standard types 38 kHz, 72 kHz) that perform surface modification treatment using ultrasonic waves and microbubbles. 2: An ultrasonic dedicated tank (standard type, inner dimensions: 500*310*340mm) that performs surface modification treatment using ultrasonic waves and microbubbles. 3: A degassing and microbubble generation liquid circulation system. 4: An optimization control system for ultrasonic output and liquid circulation via a control device. 5: An acoustic pressure management system using an ultrasonic tester. *Features This is an effective device utilizing an ultrasonic dedicated tank. Due to the efficient use of ultrasonic waves, the strength and durability of a standard tank are insufficient. Depending on the target and purpose of cleaning, stirring, and surface modification, two types of ultrasonic transducers are combined and controlled. The recommended combination is in the state of 38 kHz and 72 kHz. Technology for stably utilizing fine bubbles of 20 μm or less.

• pump
• Scientific Calculation and Simulation Software
• others

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