... constant emission energy, rotation direction positioning systems, positioning accuracy, convenience, auto-focus without lens. It greatly improves the efficiency, increases using life ... ~80JPerformance indexFocus peal value:20~50MPa,Focus impulse width:≤1us,Focus impulse front: ≤0.5us.Impulse focus rangeradial: ≤±7mm,axial: ≤±10mmhorizontal distance between ...