Nonlinear oscillation control technology for ultrasonic probes based on sound pressure measurement analysis.

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)

The Ultrasonic System Research Institute conducts consulting related to ultrasonic applications using 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 from ultrasonic testers chronologically, we establish and verify new evaluation criteria (parameters) that indicate the appropriate ultrasonic state for the intended purpose. Note: - Nonlinear characteristics (dynamic characteristics of acoustic flow) - Response characteristics - Fluctuation characteristics - Effects due to interactions By developing original measurement and analysis methods that consider the acoustic properties of the target object and surface elastic waves, we deepen our understanding of the relationships between various effects related to vibration phenomena, referencing statistical mathematical concepts. As a result, there is an increasing number of cases demonstrating that new nonlinear parameters are very effective regarding the propagation state of ultrasound and the surface of the target object. In particular, evaluation cases related to cleaning, processing, and surface treatment effects lead to successful control and improvement based on favorable confirmations.

(Development of a control system based on ultrasonic measurement and analysis) The Ultrasonic System Research Institute has developed a technology that applies the measurement and analysis of the state of ultrasonic waves propagating in a liquid within an ultrasonic tank to set and control the propagation state of ultrasonic waves according to specific purposes, considering the influences of the tank's structure, strength, manufacturing conditions, and the state of liquid circulation. 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 method of setting the circulation pump (Note 2). Note 1: This utilizes the original technology of the Ultrasonic System Research Institute, which considers "tone" in its "ultrasonic oscillation control" technology. Note 2: The know-how involves the relationship concerning the boundaries between the tank, circulating liquid, and air. It can also be applied to tanks that do not have an overflow structure. As a specific application, it is possible to set and control the propagation state of ultrasonic waves in the current tank to optimize the effects of cavitation and acceleration for the intended purpose as a power spectrum.