Development of "vibration measurement, analysis, and evaluation technology" using ultrasonic probes.

- Technology for controlling oscillations of low-frequency resonance phenomena and high-frequency nonlinear phenomena -

<<Analysis and Evaluation of Ultrasonic Sound Pressure Data>> 1) Regarding time series data, we will analyze and evaluate the statistical properties of the measurement data (stability and changes of ultrasound) through feedback analysis using a multivariate autoregressive model. 2) The effects of the oscillation part due to ultrasonic oscillation will be analyzed and evaluated in terms of the response characteristics of ultrasonic vibration phenomena concerning the surface condition of the target object through impulse response characteristics and autocorrelation analysis. 3) The interaction between the oscillation and the target object (cleaning items, cleaning solution, water tank, etc.) will be evaluated through the analysis of power contribution rates. 4) Regarding the use of ultrasound (cleaning, processing, stirring, etc.), we will analyze and evaluate the dynamic characteristics of ultrasound based on the nonlinear phenomena (results of bispectral analysis) of the target object (propagation of surface elastic waves) or the ultrasound propagating in the target liquid, which are the main factors of the ultrasonic effect. This analytical method is realized based on past experiences and achievements, adapting the analysis techniques of time series data to the measurement data of ultrasound to capture the dynamic characteristics of complex ultrasonic vibrations. Ultrasonic propagation characteristics: 1) Detection of vibration modes 2) Detection of nonlinear phenomena 3) Detection of response characteristics 4) Detection of interactions

• Non-destructive testing
• Vibration and Sound Level Meter
• Scientific Calculation and Simulation Software

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

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

To stabilize the effects of cavitation, a statistical perspective is essential — a technology to optimize nonlinear ultrasonic phenomena according to specific purposes.

<Regarding the Creation of Logical Models> (Using Information Quantity Criteria) 1) Based on various fundamental technologies, clearly recognize the "information data group," DS = (D1, D2, D3), related to the subject, consisting of: D1 = Objective knowledge (theory supported by academic logic) D2 = Empirical knowledge (results obtained so far) D3 = Observational data (current state) and create multiple model proposals from its organizational use. 2) Understand statistical thinking as a method of realizing information acquisition through the composition of the information data group (DS) and the repeated proposal and verification of models based on it. 3) Determine the optimal model by comparing various models using evaluation methods such as AIC. 4) Construct ultrasonic devices and systems based on the created models. 5) Considering time and efficiency, the following responses are proposed: 5-1) Taking into account the "logical model creation matters," create "intuitive models" for multiple people to examine. 5-2) Modify and review the models based on actual data and new information. 5-3) Enter into specific discussions about devices and systems based on models that the review members can agree upon.

• Other analytical equipment
• Scientific Calculation and Simulation Software
• others

Ultrasonic oscillation (sweep oscillation) system for controlling nonlinear phenomena

The Ultrasonic System Research Institute has developed a technology to control the nonlinear vibration phenomena of surface elastic waves based on the acoustic characteristics of original ultrasonic probes. The key point is the setting of sweep oscillation conditions using two ultrasonic probes (essentially, it cannot be controlled with just one probe for ultrasonic oscillation control. By combining the oscillation settings of the two probes, the occurrence of resonance phenomena and nonlinear phenomena can be controlled). Resonance phenomena and nonlinear phenomena can be controlled within a frequency range tailored to the intended use. In particular, when strong stimulation is required, this is achieved by utilizing low-frequency resonance phenomena (e.g., breaking glass). When high-frequency stimulation is needed, this is achieved by utilizing high-frequency nonlinear phenomena (e.g., 700 MHz stimulation).

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

Ultrasonic probe-based sweep oscillation system - a technology for controlling low-frequency resonance phenomena and high-frequency nonlinear phenomena.

The Ultrasonic System Research Institute has developed a new control technology for ultrasonic probes using original technology. This is an application technology for measurement systems using the new ultrasonic probe. We provide consulting services for the development, manufacturing, and control methods of dedicated ultrasonic probes tailored to specific purposes. Regarding the characteristics of piezoelectric elements, we develop and manufacture original ultrasonic probes based on analyses that consider elastic wave propagation and various vibration states (modes). For measurements, the probes can be connected to an oscilloscope for use. For oscillation, they can be connected to a function generator. By performing feedback analysis of sound pressure measurement data, it becomes possible to quantify and evaluate nonlinear ultrasonic phenomena (acoustic streaming) and cavitation effects. The ultrasonic probes are "made-to-order" based on the confirmed intended use.

• Non-destructive testing
• Other analytical equipment
• others

- Technology for controlling nonlinear vibration phenomena through oscillation control of original ultrasonic probes -

The Ultrasonic System Research Institute has developed oscillation control technology based on the acoustic characteristics of probes through the manufacturing technology of original ultrasonic probes. This has evolved into technology for controlling the nonlinear vibration phenomena of surface acoustic waves. The key point is the optimization control method for ultrasonic oscillation control tailored to the propagation characteristics of surface acoustic waves on the surface of ultrasonic elements and their intended use (conditions for combining sweep oscillation and pulse oscillation). To achieve this, it is important to dynamically evaluate the propagation state of ultrasound through operational verification of the ultrasonic propagation characteristics of the original probe (sound pressure level, frequency range, nonlinearity, dynamic characteristics, etc.). In particular, it is necessary to measure, analyze, and evaluate the dynamically changing oscillation characteristics of the ultrasonic probe (or element) and the oscillator (function generator) regarding their transmission and reception characteristics. 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)

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

To stabilize the effects of ultrasound, a statistical perspective is essential.

The Ultrasonic System Research Institute is developing technologies related to effective "measurement, analysis, and evaluation methods" using a <statistical approach> concerning the utilization of ultrasound. <About the Statistical Approach> Statistical mathematics has both abstract and concrete aspects, and through contact with concrete entities, abstract thoughts or methods are developed. This is the characteristic of statistical mathematics. - From "Statistics in Science" edited by Hirotsugu Akaike <About Models> Models are constructed with the aim of effectively advancing understanding, prediction, and control regarding the subject. Building an accurate model is difficult, and the examination is always conducted in a form that appropriately "rounds off" the complexity of the subject. In this sense, the process of constructing or building a model requires statistical thinking. <About the Relationship Between Models and Current Systems> (Points to Consider When Reflecting) 1) It is necessary to consider that preconceived notions and experiences may not be correct. 2) To think about the essence of a model, I believe it is effective to utilize category theory.

• Non-destructive testing
• Other analytical equipment
• Scientific Calculation and Simulation Software

Ultrasonic Sound Pressure Measurement Analysis System - Measurement, Analysis, and Evaluation System Using Original Ultrasonic Probes - (Ultrasonic System Research Institute)

This is a measurement system using an ultrasonic probe. The ultrasonic probe is attached to the target object for oscillation and measurement. The measured data is analyzed considering position, state, and elastic waves, and is detected as various acoustic performances. Features (Specifications) - Measurement (Analysis) Frequency Range: 0.1 Hz to 200 MHz - Ultrasonic Oscillation: 1 Hz to 1 MHz - Capable of measuring surface vibrations - Continuous measurement for 24 hours is possible - Simultaneous measurement of any two points - Measurement results displayed in graphs - Software for time series data analysis included 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 rate) 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

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

Machining technology using ultrasonic systems (sound pressure measurement analysis, oscillation control).

The Ultrasonic System Research Institute has developed "ultrasonic oscillation control (processing) technology" that utilizes the acoustic characteristics (vibration response characteristics and nonlinear phenomena) of objects (tools, target items, etc.) through a sound pressure measurement analysis device (ultrasonic tester) and a megahertz ultrasonic oscillation control probe. With this developed technology, it has become possible to control nonlinear vibration phenomena in target objects through "ultrasonic oscillation and output control," achieving dynamic control of ultrasonic waves (changes in bispectrum). The original ultrasonic oscillation control probe allows for the utilization and control of nonlinear effects of ultrasonic vibrations. This is an effective ultrasonic utilization (control) technology tailored to applications such as processing, cleaning, surface modification, and promoting chemical reactions. There are interactions with the acoustic characteristics of cutting tools (drills, reamers, cutters, knives, etc.) and the size and material of cutting oils, jigs, and target objects, making the analysis (self-correlation, impulse response, contribution rate, bispectrum) complex. However, various optimizations based on the analysis results of sound pressure measurement data become possible.

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

―― Is attendance management becoming a "burden" without you realizing it? A seminar to quickly learn about common issues and their solutions ―― We will be holding our attendance management web seminar in October, which takes place several times a year! The content is new, so whether you have participated in our webinars before or not, please feel free to join us. Date and Time: October 15 (Wednesday) 13:00- October 22 (Wednesday) 11:00- *Both days will cover the same content *Please check the link below for registration. In this seminar, we will recreate common situations in the workplace in a short drama format for easy understanding, and introduce specific solutions to each issue. This content is especially recommended for those who think, "I'm not struggling now, but I want to know information for the future." Common workplace "situations" can be a trigger for improvement. We will clearly present the challenges and countermeasures of attendance management. Recommended for: ❏ Those who take a long time to compile monthly attendance ❏ Those who tend to postpone compliance with legal revisions ❏ Those who currently have no major complaints but want to know hints for improvement ❏ Those who want to refer to initiatives and examples from other companies

On Monday, September 22, the Japan Meteorological Agency announced its three-month forecast for October to December. Due to the continued influence of conditions similar to the La Niña phenomenon until around December, the westerly winds are expected to flow more to the north than usual from October to early November, making it likely that warm air will cover the entire country. From late November to December, the westerly winds are expected to meander southward near Japan, and there may be periods when the winter pressure pattern strengthens. In December, the region is likely to be affected by cold air, and temperatures in western and eastern Japan are expected to be around or lower than the average for the season. For more details, please visit our website.

PTC Japan will support the CAR and DRIVER team, a car magazine founded in 1978, which will participate in the 36th "Media Challenge Roadster Endurance Race" held at Fuji Speedway on Saturday, October 4, 2025, continuing from last year.

PTC announced today the release of an AI assistant that supports Arena's Product Lifecycle Management (PLM) and Quality Management System (QMS). The Arena AI Assistant provides context-specific expertise and optimal operational methods in a conversational format in real-time for tasks related to Product Lifecycle Management (PLM) and Quality Management (QMS). This enables user teams to realize value in a shorter amount of time.

The seventh installment of the beginner-friendly 3D CAD Creo Parametric tutorial series focuses on features suitable for designs using frames, such as aluminum and sheet metal. It allows for easy realization of 3D solid structures.