This product is based on ultrasonic energy attenuation detection technology combined with digital multi-frequency signal driving technology. It enables precise measurement of overflow particle size during the grinding and classification process, as well as particle size in key process stages such as coarse slime separation and flotation feed. This solution effectively improves classification efficiency and stabilizes grinding fineness, enhances recovery rates, and reduces energy consumption. It provides critical data support for achieving expert-level control of the production process.