77 citations · 95 across the 18 of their papers we have counts for
8 papers · 1 filter
Event-Based Spatial-Carrier Interferometry for Surface-Normal Vibration-Waveform Reconstruction
Ryogo Niwa, Tatsuki Fushimi, Yoichi Ochiai
Non-contact measurement of small vibrations perpendicular to a surface supports the evaluation of mechanical structures, but in camera-based interferometry, increasing the frame ra…
Acoustic Manipulation of Tangible Janus Icons on Liquid Droplets
Yusuke Koroyasu, Yoichi Ochiai, Tatsuki Fushimi
Interfaces that couple digital information with physical matter enable computation to be expressed through tangible motion and touch, yet typically rely on embedded actuators, rigi…
Reversible vertical positioning of acoustically levitated particle using a spiral reflector
Yusuke Koroyasu, Takayuki Hoshi, Yoshiki Nagatani +3
Dynamic positioning in acoustic levitation typically depends on active control of the transducers phases, which necessitates complex driving electronics. While mechanically actuate…
Event Topology-based Visual Microphone for Amplitude and Frequency Reconstruction
Ryogo Niwa, Yoichi Ochiai, Tatsuki Fushimi
Accurate vibration measurement is vital for analyzing dynamic systems across science and engineering, yet noncontact methods often balance precision against practicality. Event cam…
Experimental and Numerical Study of Acoustic Streaming in Mid-Air Phased Arrays
Christopher Stone, Yusuke Koroyasu, Yoichi Ochiai +3
Mid-air acoustic streaming, where ultrasound induces steady fluid motion, could significantly affect the perception of haptic sensations, stability of levitation systems, and enabl…
Spatial Sound Modulation through Manual Reconfiguration of Phased Plate
Soma Mochizuki, Yoichi Ochiai, Tatsuki Fushimi
Ultrasonic phased array technology, while versatile, often requires complex computing resources and numerous amplifier components. We present a Manually Reconfigurable Phased Array…
Mid-Air Single-Sided Acoustic Levitation in High-Pressure Regions of Zero-Order Bessel Beams
Yusuke Koroyasu, Christopher Stone, Yoichi Ochiai +3
Acoustic levitation enables non-contact manipulation using sound waves. While conventional methods entrap particles at pressure nodes (zero-pressure region surrounded by high-press…
Multi focus acoustic field generation using Dammann gratings for phased array transducers
Tatsuki Fushimi, Yusuke Koroyasu
Phased array transducers can shape acoustic fields for versatile manipulation; however, generating multiple focal points typically involves complex optimization. This study demonst…