We know you’ve seen them: the time-lapses that show a 3D print coming together layer-by-layer without the extruder taking up half the frame. It takes a little extra work compared to just ...

Abstract: Advancements in ultrasonic imaging sensors (UISs), such as improvements ... However, existing microelectromechanical systems (MEMS) transducer arrays suffer from limitations due to the ...

Abstract: This article focused on investigating the resonance frequency of piezoelectric transducers (PZTs) and the impact of different compensation methods on the performance of ultrasonic wireless ...

Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR 999077, China CAS-CityU Joint Laboratory for Robotic Research City University of Hong Kong Shenzhen Research Institute ...