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
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basic information
**Technology for Controlling Nonlinear Vibration Phenomena of Ultrasound** 1) Control settings technology that adjusts oscillation output, waveform, and variations using a function generator to match the acoustic characteristics of the target object. 2) Manufacturing technology for ultrasonic oscillation control probes that make the changes in ultrasonic oscillation voltage controllable, including adjustments to the oscillation surface. 3) Manufacturing technology for ultrasonic measurement probes that enable the measurement of ultrasonic vibration changes above 200 megahertz, including adjustments to the elements. 4) Optimization technology for sweep oscillation conditions. Using the above technologies, we control (optimize) the propagation state of ultrasound according to the intended purpose. Note: Regarding the interaction between the acoustic characteristics of the target object and the ultrasonic oscillation control, we perform dynamic control of ultrasound based on the analysis and evaluation of sound pressure data related to nonlinear phenomena (sound pressure measurement, analysis, confirmation, and evaluation are conducted using an ultrasonic tester). As a result of applying this technology to precision cleaning and chemical reaction experiments, it has become possible to utilize it as a highly efficient ultrasonic system at the nano level (for cleaning, modification, reaction control, etc.).
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Applications/Examples of results
Specific Examples 1) Preventing the degradation of machining oil by ultrasonic irradiation at night. 2) Improving quality through ultrasonic irradiation on NC machines. 3) Ultrasonic irradiation on shelves storing metal and resin parts (surface modification). 4) Improving fluidity and concentration uniformity in plating solutions, cleaning solutions, solvents, etc., through ultrasonic irradiation. 5) Improving welding quality by ultrasonic irradiation on welding machines. 6) Relieving surface residual stress through ultrasonic irradiation on brazing and bending machines. 7) Improving cleaning levels with ultrasonic irradiation on ultrasonic cleaning machines. 8) Preventing age-related deterioration related to vibrations through ultrasonic irradiation on various machine tools. 9) Preventing internal adhesion in pipes and tubing through ultrasonic irradiation. 10) Improving internal fluidity and cleaning through ultrasonic irradiation on pipelines. 11) Stabilizing rotation through ultrasonic irradiation on rotating devices. 12) Improving aluminum fluidity at high temperatures, uniforming temperature changes (uniforming surface residual stress), and enhancing surface quality through ultrasonic irradiation on aluminum die-casting machines. 13) Uniforming temperature changes (uniforming surface residual stress) through ultrasonic irradiation on high-temperature systems such as casting and forging. ...
Detailed information
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Ultrasonic oscillation (sweep oscillation, pulse oscillation) system
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Ultrasonic oscillation (sweep oscillation, pulse oscillation) system
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Ultrasonic oscillation (sweep oscillation, pulse oscillation) system
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Ultrasonic oscillation (sweep oscillation, pulse oscillation) system
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Ultrasonic oscillation (sweep oscillation, pulse oscillation) system
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Ultrasonic oscillation (sweep oscillation, pulse oscillation) system
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Oscillation control using an ultrasonic probe
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Ultrasonic oscillation control probe
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Technology for controlling nonlinear vibration phenomena of ultrasound.
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Company information
The Ultrasonic System Research Institute conducts the following activities with its original product: ultrasonic systems (sound pressure measurement analysis, oscillation control): 1) Manufacturing and sales of ultrasonic systems (sound pressure measurement analysis, oscillation control) 2) Consulting services for various equipment (Note): cleaning machines, stirring devices, processing equipment, machine tools, plating devices, welding devices, etc. Ultrasonic System (Sound Pressure Measurement Analysis, Oscillation Control) We manufacture and sell a system that combines the "Ultrasonic Tester NA (recommended type)" for easy measurement and analysis of ultrasonic waves and the "Ultrasonic Oscillation System (1 MHz, 20 MHz)" for easy oscillation control. <Patent Applications Filed> Patent Application No. 2021-125866: Ultrasonic Control (Ultrasonic Oscillation Control Probe) Patent Application No. 2021-159990: Ultrasonic Welding Patent Application No. 2021-161532: Ultrasonic Plating Patent Application No. 2021-171909: Ultrasonic Processing Patent Application No. 2021-175568: Flow-type Ultrasonic Cleaning Some of the manufacturing technology for the ultrasonic oscillation control probe is described in Patent Application No. 2021-125866. Patent Application No. 2023-195514: Ultrasonic Plating Using Megahertz Ultrasonic Waves and Fine Bubbles.