Surface modification technology using megahertz ultrasound - relaxation and homogenization treatment of surface residual stress -

Technology for controlling low-frequency resonance phenomena and high-frequency nonlinear phenomena.

The Ultrasonic System Research Institute has developed ultrasonic oscillation control technology utilizing nonlinear vibration phenomena based on surface acoustic waves. By confirming the basic acoustic characteristics (response characteristics, propagation characteristics) for various targets (water tanks, transducers, probes, jigs, objects, etc.), the desired ultrasonic propagation state can be achieved through oscillation control. By setting the oscillation conditions (waveform, output, control, etc.) with an original nonlinear resonant ultrasonic oscillation probe, we optimize high-frequency propagation states above 300 MHz through high sound pressure resonance phenomena and harmonic generation phenomena (nonlinear phenomena). This technology is an efficient method for utilizing low-output ultrasonic oscillation. The key point is the setting of various parameters utilizing the characteristics of a discrete function generator through digital control. By using the nonlinear resonant ultrasonic oscillation probe, the control range of sound pressure levels due to resonance phenomena is greatly expanded, which is significantly different from conventional sound pressure levels caused by resonance phenomena. Therefore, optimization of control settings based on sound pressure measurement analysis is necessary to avoid phenomena such as damage or destruction.

• Special Construction Method
• Non-destructive testing
• others

- Surface modification technology (stress relaxation and uniformity) through nonlinear oscillation control of original ultrasonic probes -

The Ultrasonic System Research Institute has made it possible to control the nonlinear propagation state of ultrasound by utilizing measurement, analysis, and control technologies related to the propagation state of ultrasound as the acoustic characteristics of the target object. As a result, we have developed and advanced technology to efficiently alleviate residual stress on the surface of components. This technology for alleviating surface residual stress improves fatigue strength against metal fatigue and achieves uniformity in various surface treatments. In particular, by considering the guided waves (surface elastic waves) of the target object in the setting and control of the ultrasonic propagation state, we have developed control methods and tools that realize effective dynamic changes in the target object as stimuli that include nonlinear phenomena. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. This is a new surface treatment technology using ultrasound, which, including the general effects based on acoustic characteristics, can be utilized and developed as a distinctive inherent operational technology for the development of new materials, stirring, dispersion, cleaning, and chemical reaction experiments.

• Other analytical equipment

Surface treatment technology using a megahertz ultrasonic oscillation control probe -- Improvement treatment of metal fatigue strength (relaxation and uniformization of surface residual stress) --

The Ultrasonic System Research Institute has developed methods for measuring, analyzing, and evaluating surface residual stress by applying the following technologies: 1) Manufacturing technology for ultrasonic probes 2) Evaluation technology for ultrasonic propagation conditions 3) Surface inspection technology using ultrasound Based on numerous achievements, we believe that various applications are possible as ultrasonic utilization technology, and we are making related technologies publicly available. Specific examples: Surface treatment know-how: Standard settings Output: 13-15V Rectangular wave: Duty 47.1% Sweep range: 500kHz - 13MHz, 2 seconds Settings for low-intensity targets (or long processing times): Output: 1-3V Rectangular wave: Duty 47.1% Sweep range: 300kHz - 3MHz, 1 second (or 100kHz - 5MHz, 1 second) Note: The oscillation conditions can vary significantly due to the ultrasonic propagation characteristics of the target object and the oscillation characteristics of the function generator. 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)

• Other measuring instruments
• Scientific Calculation and Simulation Software
• others

Ultrasonic cleaning system that achieves ultrasonic control tailored to the purpose.

This is an effective device using a dedicated ultrasonic tank (original manufacturing method). Due to the high efficiency of ultrasonic utilization, standard tanks lack sufficient strength and durability. Depending on the target and purpose, multiple ultrasonic waves and a degassing fine bubble generation liquid circulation device are controlled based on sound pressure measurement analysis for cleaning, stirring, and surface modification. We propose various combinations and usage (control) methods. The key point is to achieve an ultrasonic propagation state tailored to the target, focusing on the "dissolved oxygen concentration distribution" and "liquid circulation" within the dedicated tank. << Degassing 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 gases to form. The above describes the state of the degassing liquid circulation device. 3) As the concentration of dissolved gases decreases, the bubble size of dissolved gases due to cavitation becomes smaller. 4) Through appropriate liquid circulation, fine bubbles (microbubbles) smaller than 20μ are generated. The above describes the state of the degassing microbubble generation liquid circulation device.

• Other measuring instruments
• Scientific Calculation and Simulation Software
• others

Technology for optimizing the resonance and nonlinear phenomena of ultrasonic vibrations through megahertz oscillation control of an original ultrasonic oscillation control probe.

The Ultrasonic System Research Institute has developed a technology to control the nonlinear vibration phenomena of surface acoustic waves through ultrasonic oscillation control techniques. By confirming the basic acoustic characteristics of ultrasonic waves (response characteristics, propagation characteristics) for various targets (water tanks, transducers, probes, fixtures, objects, etc.), we realize ultrasonic propagation states tailored to specific applications through oscillation control. Using two or more types of nonlinear resonant ultrasonic oscillation control probes, we dynamically control high-frequency propagation states above 900 MHz through the setting of oscillation conditions for sweep oscillation and pulse oscillation (note), resulting in high sound pressure level resonance phenomena and the generation of harmonics (nonlinear phenomena of 10th order and above). Note: Precision cleaning examples Sweep oscillation: 700 kHz – 20 MHz, 15 W Pulse oscillation: 13 MHz, 8 W 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" statistical processing language autcor: autocorrelation analysis function bispec: bispectrum analysis function

• Non-destructive testing
• Vibration and Sound Level Meter
• others

Improvement process for ultrasonic propagation efficiency due to harmonics above 200 MHz.

The Ultrasonic System Research Institute has made it possible to control the nonlinear propagation state of ultrasound by measuring, analyzing, and controlling the propagation state of ultrasound and applying it as the acoustic characteristics of the target object. As a result, we have developed a technology that efficiently alleviates the residual stress on the surface of components and homogenizes the entire surface. With this technology to alleviate surface residual stress, we have improved fatigue strength against metal fatigue and achieved uniformity in various surface treatments. In particular, by considering the guided waves (surface elastic waves) of the target object in the setting and control of the ultrasonic propagation state, we have developed control methods, tools, and systems that realize effective dynamic changes in the target object as a certain range of stimuli that include nonlinear phenomena. We have confirmed a wide range of effects on various surfaces of metal parts, plastic parts, and powder materials. This technology is offered as a consulting service.

• Non-destructive testing
• Scientific Calculation and Simulation Software
• others

A technology for alleviating and equalizing the surface residual stress of ultrasonic transducers using an ultrasonic and fine bubble generation liquid circulation system.

The Ultrasonic System Research Institute has published a technology that applies measurement, analysis, and control techniques related to the propagation state of ultrasound to relax the surface residual stress of ultrasonic transducers using an ultrasonic and fine bubble generation liquid circulation system. This technology for relaxing surface residual stress enables the improvement of 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 achieve effective ultrasonic irradiation conditions through the setting, tooling, and control. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. This technology will be offered as a consulting service. This is a new surface treatment technology using ultrasound, which, including the general effects based on acoustic properties, can be utilized and developed as a distinctive operational technology for the development of new materials, stirring, dispersion, cleaning, and chemical reaction experiments.

• Special Construction Method
• Other measuring instruments
• others

Dynamic control technology for ultrasonic cleaning machines.

The Ultrasonic System Research Institute has developed ultrasonic cleaning technology utilizing the "Constructal Law" related to flow and shape. <References> 1) On Vibration From the Royal Institution's 133rd lecture "Vibration" I intend to describe almost all of the important fields of mechanical engineering here. [Author] Richard B. Bishop [Translator] Hidetaro Nakayama, Kodansha (1981, B-471) 2) Flow and Shape The evolution of all shapes is governed by the "Constructal Law," which aims to improve flow! [Authors] Adrian Bejan, J. Peder Zane [Translator] Hiroyuki Shibata, [Commentator] Shigeo Kimura, Kinokuniya (2013) 3) How Cybernetics Was Born [Author] Norbert Wiener [Translator] Yasuo Shizume, Misuzu Shobo (1956) Using the above as references and hints, we have organized the technology for measuring and utilizing "nonlinear effects" in ultrasonic propagation phenomena according to the "Constructal Law," which aims to improve flow, culminating in ultrasonic cleaning technology.

• pump
• Drainage and ventilation equipment
• 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

Ultrasonic system combining "Ultrasonic Tester NA (10 MHz)" and "Ultrasonic Oscillator (20 MHz)"

An ultrasonic system that allows for easy measurement analysis and oscillation control. The Ultrasonic System Research Institute is publicly conducting experiments using a system that combines the "Ultrasonic Tester NA (recommended type)," which allows for easy measurement analysis of ultrasonic waves, and the "Ultrasonic Oscillation System (20 MHz)," which enables easy oscillation control of ultrasonic waves. Ultrasonic Probe: Overview Specifications - Measurement Range: 0.01 Hz to 200 MHz - Oscillation Range: 0.5 kHz to 25 MHz - Propagation Range: 0.5 kHz to over 900 MHz (confirmed and evaluated through analysis) - Materials: Stainless steel, LCP resin, silicone, Teflon, glass, etc. - Oscillation Equipment Example: Function Generator Note: 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" Free Statistical Processing Language and Environment - autocor: Autocorrelation Analysis Function - bispec: Bispectrum Analysis Function - mulmar: Impulse Response Analysis Function - mulnos: Power Contribution Rate Analysis Function

• Water Treatment
• Other analytical equipment
• others

Do you have any concerns or requests regarding wired bed exit sensors? × Tangling or tripping over wired cables × Cable disconnection or damage × Worrying about forgetting to turn the switch back on after temporarily stopping the sensor. × Wanting to be notified of bed exits even from a location far from the nurse call outlet. Such concerns can be resolved simply by connecting our wireless nurse call linked set to the sensor! Our wireless nurse call linked set allows you to connect bed exit sensors like "Ugo-kun," "Foldable Thin Matta-kun," "Ayumi-chan," and "Just Place Pole-kun" to transmitters and receivers, reducing wiring around the bed area, alleviating concerns about tripping or falling due to cables, and contributing to a tidier work environment. Furthermore, it enables the use of bed exit sensors even from locations far from the nurse call outlet, allowing for more flexible equipment placement.

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

The "HM-S6" is an embedded park sensor that detects vehicles through changes in magnetic flux and responds to various situations from passing to stationary vehicles. It can be used for the opening and closing of input doors at waste treatment plants, as well as for gates that vehicles pass through and outdoor parking applications. It can also be installed on rebar and steel plates. 【Features】 ■ Resistant to the effects of natural environments such as rain, snow, temperature changes, and geomagnetism ■ Protection rating IP68 reduces the risk of water ingress ■ Ten times the load capacity compared to conventional embedded park sensors (based on our comparison) ■ Can distinguish between vehicles even when they pass continuously ■ Can be installed on rebar and steel plates *For more details, please refer to the PDF document or feel free to contact us.

To customers considering the introduction of vehicle detection sensors for parking lot construction, design, or management: Are you facing any challenges with current issues or selecting the right sensors for parking management? Hotron offers free materials that explain how to utilize vehicle detection sensors and the benefits of their introduction! ▽ Here is the lineup of materials ◉ Vehicle Detection Sensor Basic Guide This guide focuses on the challenges and solutions in parking lot operations, introducing the overview of vehicle detection sensors. ◉ Key Points for Introducing Vehicle Detection Sensors This material discusses the benefits of introduction based on installation locations and specific challenges. ◉ Case Studies of Vehicle Detection Sensor Implementation This document presents the challenges before implementation and the results after introduction. For more details, please download from our website and check it out. https://www.hotron.co.jp/download/

SBS Marketing Co., Ltd., which provides consulting services related to marketing, sales promotion, and customer acquisition primarily in the BtoB (business-to-business) sector based on practical experience in support companies and business companies, has published a page titled "Project Budget Overruns, Delays, and Increased Resource Burden!? 'Scope Creep'" on November 11, 2025 (Tuesday). 'Scope creep' refers to the gradual expansion of a project's initial scope without following formal processes, leading to delays, budget overruns, and increased resource burdens. The page explains examples of occurrence, the negative impacts that can arise, as well as the causes and countermeasures. (Page Overview: Excerpts) ■ What is 'Scope Creep'? ■ Examples of 'Scope Creep' occurrence ■ Negative impacts caused by 'Scope Creep' ■ Causes of 'Scope Creep' ■ Countermeasures to prevent 'Scope Creep' (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/scope-creep-2025-11/