piezoelectric transducerdual driving facein-plane flexural vibration modeExisting rotary ultrasonic motors operating in extreme environments cannot meet the ... X Lu,J Hu,L Yang,... - 《Chinese Journal of Mechanical Engineering》 被引量: 13发表: 2013年 Principle and Experimental Verification of Novel...
The transducer comprises at least one active piezoelectric, esp. piezoceramic element and a passive element. The active elements are disc shaped, and the passive element consists of an embossed metal sheet. The passive element (1) has dome-shaped embossed projections. The passive element's ...
The transducer centre frequency is determined by the λ/4 resonance of the polypropylene foam ferroelectret film (0.35 MHz), then, the rest of the transducer components (piezocomposite disk and passive intermediate matching layers) are all tuned to this frequency. The transducer has been tested ...
The damping of a truss structure with a piezoelectric transducer This paper re-examines the classical problem of active and passive damping of a piezoelectric truss. The active damping strategy is the so-called IFF (inte... A Preumont,BD Marneffe,A Deraemaeker,... - 《Computers & Structures...
An AOTF is a device that takes a radio frequency input and applies it to a piezoelectric transducer that’s bonded to a crystal of tellurium oxide. The RF signal excites the transducer, which vibrates the TeO2 crystal and sets up a standing wave within it. The alternating bands of ...
A piezoelectric device includes an at least locally thin-walled ceramic substrate (2) and at least one film-type piezoelectric transducer (3) on the substrate. The substrate is locally formed with at least one cavity (4) defined by at least one peripheral wall (2c) and a bottom wall (2a...
摘要: A piezoelectric drive for neuro surgical tools has a non magnetic ultrasonic piezoelectric motor (6) made of titanium or composite materials with drive shaft (7) for drill holder (8) and electric field shielding with remote control from a control unit....
The mechanical energy source is usually mechanically captured in the form of kinetic energy or potential energy and transferred to the transducers through mechanical modulation to convert it to electrical energy or other forms of energy. The transducer is the core component of the mechanical energy ha...
Transducer housing is a 30 mm diameter Conclusions Passive focusing devices for Air-Coupled Ultrasound (ACU) transducers provide simple methods to concentrate the sound beam into a focus. This helps to improve lateral resolution and increase sensitivity. This work analyzed both theoretical and ...
The transducer has a passive base layer (1) supporting an active piezoelectric material layer (2) which is provided with electrodes (8,9) for voltage input or voltage output. The active layer contains electromechanically active fibres (... DOELLGAST, BERNHARD, ERLANGEN, DE - DE 被引量: 27发...