Improvement and enhancement of ultrasonic devices <Measurement, analysis, and evaluation of sound pressure data>

The Ultrasonic System Research Institute provides consulting services for the manufacturing and development methods of the "Deaeration Fine Bubble (Microbubble) Generation Liquid Circulation Device," which can efficiently control ultrasonic waves. "Deaeration 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 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 (microbubbles) 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 (microbubble) generation liquid circulation device, the ultrasonic waves disperse and crush the fine bubbles (microbubbles). When measuring the fine bubbles (microbubbles), the distribution of ultra-fine bubbles exceeds that of fine bubbles. The above state indicates that ultrasonic waves can be stably controlled.

The Ultrasonic System Research Institute has published measurement and analysis data on ultrasonic sound pressure using its original product: an ultrasonic tester. << Measurement and Analysis of Ultrasonic Sound Pressure >> 1) By using feedback analysis through a multivariate autoregressive model, we will examine and evaluate the stability and changes of ultrasonic waves (many ultrasonic cleaning devices have issues in this regard). 2) Through the analysis of impulse response characteristics and autocorrelation, we will conduct examinations and evaluations related to tanks, transducers, and tooling (these are the most important parameters in ultrasonic processing). 3) By analyzing power contribution rates, we will examine and evaluate the optimization of ultrasonic (frequency and output), tanks, and liquid circulation (this examination is crucial for mass production devices). 4) Through nonlinear (bispectral) analysis of other factors (propagation of surface elastic waves), we will conduct examinations and evaluations tailored to the target object for cleaning, stirring, dispersion, and modification (this is necessary for research and development of ultrasonic utilization methods, including applications in nanotechnology). This analysis method is realized by adapting the measurement data to the dynamic characteristics of complex ultrasonic vibrations.

***<Thinking Approach>*** The Ultrasonic System Research Institute has developed a model of the state, including phenomena related to the nonlinearity of ultrasound, as a Monoïd model in abstract mathematics (category theory). Based on this idea, we have developed a specific method for ultrasonic control as a spectral series of knot theory. The control method adapted to ultrasonic phenomena realizes dynamic changes in cavitation and acoustic flow by feedback analysis of sound pressure measurement data using an autoregressive model. From previous cases and achievements, it has been developed as a classification technique for nonlinear phenomena (harmonics, low-frequency reduction). Through a logical model, we dynamically control effective states of ultrasonic propagation (utilization) by classifying them into four types as follows: 1: Cavitation-dominant type 2: Acoustic flow-dominant type 3: Mixed type 4: Variable type The above logical classification is dynamically controlled by categorizing it into three variable type categories as a realistic response method based on the results of previous measurement data (ultrasonic phenomena that change over time).

The Ultrasonic System Research Institute has developed a completely new technology for controlling vibrations using original products (ultrasonic systems). Based on the analysis and evaluation of ultrasonic sound pressure measurement and oscillation control technology developed so far, we perform oscillation control of megahertz ultrasonic waves based on the analysis and evaluation of nonlinear phenomena in ultrasonics. From the accumulation of data measuring, analyzing, and evaluating the dynamic characteristics of ultrasonic waves propagating on surfaces, we apply technology that can <measure, analyze, and evaluate> vibration states from low frequencies (0.1 Hz) to high frequencies (over 900 MHz). Regarding vibrations and noise from buildings and roads, equipment, devices, walls, piping, desks, handrails... the vibrations at the moment of metal melting during welding, instantaneous vibrations during machining, and the complex vibration states of entire manufacturing devices and systems... new countermeasures based on vibration measurement and analysis have become possible. This is a new method and technology, and various application cases have developed from the results obtained so far. In particular, since continuous data collection for a standard measurement time of 72 hours is possible, we can measure and respond to very low frequency vibrations and irregularly fluctuating vibrations.