Nonlinear Sweep Oscillation Control Technology for Ultrasonics - Oscillation Waveforms and Control Know-How -

<The Reality of Cleaning> 1: Managing cleaning equipment and cleaning solutions is difficult. In the case of cleaning devices that utilize vibrational phenomena as a physical action, the low-frequency vibrational phenomena caused by the installation of the device, along with the device's inherent vibrational phenomena, and the vibrational phenomena of the objects being cleaned and tools interact with each other, resulting in a complex change in the vibrational state. In many cases where cleaning effects are observed, nonlinear vibrational phenomena occur. To confirm nonlinearity and manage it, logical learning and an understanding of vibration measurement are necessary. As for the chemical action of cleaning solutions, in devices that utilize cleaning effects, managing the concentration of detergents is important, but measuring the concentration distribution within the tank is a challenging situation. Various distributions change due to interactions with the environment, such as liquid temperature, humidity, air temperature, and atmospheric pressure. In particular, the distribution of dissolved gas concentration has a significant impact on chemical reactions, but no methods are known to achieve uniform dissolved gas concentration. (Using the diffusivity of fine bubbles is one method.) If detergents are added but only increase the variability of the concentration distribution, it will result in greater variability in cleaning results. ....

The Ultrasonic System Research Institute has developed a technology for utilizing ultrasonic probes that can control the linearity and non-linearity of surface elastic waves of objects in the frequency range from 500 Hz to 900 MHz. The key point is the optimization of the propagation characteristics of surface elastic waves on the surface of ultrasonic elements according to their intended use. To achieve this, we confirm the operational characteristics of the original probe's ultrasonic propagation (sound pressure level, frequency range, non-linearity, dynamic characteristics, etc.). For the transmission and reception of ultrasound using multiple ultrasonic elements, it is important to measure, analyze, and evaluate the dynamically changing response characteristics. From the response characteristics, we determine the usable ranges of sound pressure level, frequency, and non-linearity. Currently, we are capable of addressing the following ranges. Ultrasonic Probe: Outline 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 (confirmation of sound pressure data analysis) - 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 a technology to adjust the ultrasonic propagation characteristics of ultrasonic elements (piezoelectric elements) based on measurement, analysis, and evaluation results regarding the propagation state of ultrasound, utilizing ultrasonic systems (sound pressure measurement, oscillation control). To utilize the surface acoustic waves of ultrasonic elements (piezoelectric elements) according to specific purposes, special surface treatments are applied to the element's surface. It allows for adjustments to the sound pressure level and frequency range of the propagating ultrasound. By achieving dynamic ultrasonic propagation control through the combination of ultrasound (oscillation control) and surface acoustic waves, it has evolved into an adjustment technology based on the characteristics derived from the analysis of sound pressure data. The key point is the optimization of oscillation conditions (waveform, output, frequency, variations, etc.) to enable efficient control of nonlinear phenomena caused by surface acoustic waves. As specific technologies mentioned above, we provide consulting services for system technologies that control nonlinear phenomena (bi-spectra) resulting from the interaction of ultrasound with tanks and tools, tailored to specific purposes (cleaning, stirring, processing, welding, surface treatment, stress relief treatment, inspection, etc.).

Ultrasonic Cleaning Device Utilizing a Degassed Fine Bubble Generation Liquid Circulation System 1. Overview This device is an ultrasonic device. 2. Functions 1) Cleaning and Stirring Target Name: Metal Dimensions: MAX 430*300*150 mm Weight: MAX 100 kg Material: Glass, Metal, Ceramic, etc. Contaminants: Cutting oil, fine particles, etc. 2) Processing Unit Processing Amount (per day): - Single Cycle Processing Amount: - Single Cycle Processing Time: To be confirmed by experiments. 3) Control: Liquid circulation system (timer control of circulation pump) 4) Safety Devices: None in particular 5) Operating Conditions (The operating conditions of this device are as follows) Cleaning and Stirring Liquid: Water tank, municipal water (10-80°C) Cleaning and Stirring Liquid: Indirect water tank, weakly acidic, weakly alkaline solution, etc. 6) Liquid Volume Water tank liquid volume: Approximately 64 L Indirect tank liquid volume: - 7) Others: - 3. Regarding Cleaning and Stirring The details regarding the cleaning and stirring content are unclear, so they will be excluded from the acceptance conditions. 4. Regarding the Cleaning Process Cleaning Liquid: Municipal water, Liquid Temperature: Room temperature, Ultrasonic 1: 28 kHz, Ultrasonic 2: 38 kHz