The near-field acoustic levitation (NFAL) technique is attracting increasing attention because
of its compact design and environmental friendliness. An intriguing aspect of NFAL is the …

Near-field acoustic levitation (NFAL) is an innovative contactless handling technology with
extensive potential in precision manufacturing and microelectromechanical systems …

Abstract Near-field Acoustic Levitation (NFAL) is an advanced non-contact handling method
with promising applications in the field of manufacturing semiconductors and Micro-Electro …

When precision materials or components are moved or transported, traditional contact
transport methods inevitably lead to some trouble such as wear, scarification, pollution and …

In this paper, the coupled vibration behavior of cylindrical-conical and cylindrical-
exponential ultrasonic concentrators for efficient energy transfer is investigated. A theoretical …

This study presents a squeeze film air bearing (SFAB) with flexure pivot-tilting pads that can
be used to control the shaft positions. As the vibration characteristics and coupling …

Near-field acoustic levitation (NFAL) is an innovative contactless handling technology with
broad applications in precision manufacturing equipment and micro-electrical mechanical …

A novel non-contact carrying and transportation technology is proposed based on near-field
acoustic levitation (NFAL) and negative pressure adsorption effect. The disk-shaped objects …

Previous research has experimentally demonstrated the feasibility of near-field acoustic
levitation (NFAL) in water. This paper proposes an analytical model of underwater NFAL to …

A radial-longitudinal (RL) ultrasonic transducer is designed by compounding a piezoelectric
ceramic and an outer metal ring on the central coupling cylinder of a longitudinal cascade …