Surface residual stress relaxation and uniformization technology for ultrasonic transducers.

The Ultrasonic System Research Institute has released a technology that applies measurement, analysis, and control techniques related to the propagation state of ultrasound to alleviate the surface residual stress of ultrasonic transducers using an ultrasonic and microbubble generation liquid circulation system. This technology for alleviating surface residual stress enables improvements in 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 realize effective ultrasonic irradiation conditions through settings, tooling, and control. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. Ultrasonic Probe: Overview Specifications - Measurement Range: 0.01 Hz to 200 MHz - Oscillation Range: 1.0 kHz to 25 MHz - Propagation Range: 0.5 kHz to over 900 MHz (analysis confirmation of sound pressure data) - Materials: Stainless steel, LCP resin, silicon, Teflon, glass, etc. - Oscillation Equipment: Example - Function Generator - Measurement Equipment: Example - Oscilloscope

The Ultrasonic System Research Institute has developed an ultrasonic oscillation control probe using components coated with iron on polyimide film. By applying this technology, we provide consulting services for "ultrasonic and vibration measurement, propagation control..." for various curved surfaces. Ultrasonic Probe: Overview Specifications Measurement Range: 0.01 Hz to 100 MHz Oscillation Range: 1 kHz to 25 MHz Propagation Range: 1 kHz to over 900 MHz Materials: Stainless steel, LCP resin, silicon, Teflon, glass... Oscillation Equipment Example: Function Generator By understanding the acoustic characteristics of the target object and installation conditions, we have achieved dynamic control of surface elastic waves (propagation state). We realize propagation states tailored to various purposes (cleaning, stirring, etc.). 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)

The Ultrasonic System Research Institute has developed an ultrasonic cleaning machine utilizing fine bubbles, based on measurement, analysis, and evaluation techniques related to ultrasonic propagation phenomena, which can also be used for ultrasonic processing, stirring, and chemical reactions. Recommended System Overview 1: An ultrasonic transducer that has undergone surface modification treatment using ultrasonic waves and fine bubbles. 2: An ultrasonic dedicated tank that has undergone surface modification treatment using ultrasonic waves and fine bubbles. 3: A degassing and fine bubble (microbubble) generation liquid circulation system. 4: An optimization control system for ultrasonic output and liquid circulation controlled by a control device. 5: An acoustic pressure management system using an ultrasonic tester. Frequency: 26 kHz, 72 kHz Output: 300 W and above Note: The tank, transducer, and tools can be adjusted for acoustic characteristics through aging treatment. *Features This is an effective device using a dedicated ultrasonic tank. Due to the efficient use of ultrasonic waves, the strength and durability of a standard tank are insufficient. Cleaning, stirring, surface modification... Ultrasonic waves (cavitation, acoustic flow) are controlled according to the target and purpose.

<< 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 deaeration fine bubble (microbubble) generation liquid circulation device, the ultrasonic waves disperse and crush the fine bubbles (microbubbles), and when measuring the fine bubbles (microbubbles), the distribution amount of ultra-fine bubbles becomes greater than that of fine bubbles. The above state indicates that ultrasonic waves can be stably controlled. 6) In a state where ultrasonic waves can be stably controlled, the original product: a megahertz ultrasonic oscillation control probe is used to control the oscillation of ultrasonic waves in the megahertz range (1-20 MHz).