Results 31 to 40 of about 22,792 (197)
The present study introduces a multi-degree-of-freedom (MDOF) ultrasonic motor, which is capable of driving a spherical rotor using spiral wire stators and a piezoelectric stack actuator. Wire stators and piezoelectric stack actuators enable the proposed
Seyed Hassan Jahantab +3 more
doaj +1 more source
A robust loop-shaping approach to fast and accurate nanopositioning [PDF]
Peer ...
Aphale, Sumeet S. +2 more
core +3 more sources
A high-precision equipment is very sensitive to vibration, even micro vibration. How to isolate the low-frequency broadband multidirectional vibration remains a challenge.
Wentao Zou +3 more
doaj +1 more source
Wireless actuation of bulk acoustic modes in micromechanical resonators [PDF]
We report wireless actuation of a Lamb wave micromechanical resonator from a distance of over 1 m with an efficiency of over 15%. Wireless actuation of conventional micromechanical resonators can have broad impact in a number of applications from ...
Brown, Benjamin +3 more
core +1 more source
Vibration Characteristics of Stacked Piezoelectric Transducers
ABSTRACT This paper deals with the vibration characteristics of stacked transducers composed of piezoelectric discs, which are main elements of ultrasonic sensors or actuators. The stacked transducers were de-vised in the sense of natural frequencies. Two- or three-layer transducers were fabricated with piezo-electric discs of different diameters.
Dae Jong Kim, Jin Oh Kim
openaire +2 more sources
A novel method for recovering antenna gains of a reflector antenna system using piezoelectric stack actuators and a focus adjustment mechanism is developed and its feasibility is investigated.
Hiroaki TANAKA
doaj +1 more source
Underwater acoustic transducers often include a stack of thickness polarized piezoelectric material pieces of alternating polarity interspersed with electrodes, bonded together and electrically connected in parallel.
Markley, Douglas C. +2 more
core +1 more source
Nonlinear electromechanical behaviors of piezoelectric generators with hybrid stiffnesses
In this paper, we introduce a novel two-degree-of-freedom piezoelectric stack hybrid energy harvester including a piezoelectric stack and a set of piezoelectric layers.
Zhongjie Li +7 more
doaj +1 more source
Third-Harmonic and intermodulation distortion in bulk acoustic-wave resonators [PDF]
This article discusses on the measured third-order intermodulation (IMD3) products and third harmonics (H3) appearing in a set of six different solidly mounted resonators (SMR) and bulk acoustic-wave (BAW) resonators with different shapes and stack ...
Aigner, Robert +3 more
core +2 more sources
Measurement of Elastoresistivity at Finite Frequency by Amplitude Demodulation
Elastoresistivity, the relation between resistivity and strain, can elucidate subtle properties of the electronic structure of a material and is an increasingly important tool for the study of strongly correlated materials.
Fisher, Ian R. +5 more
core +1 more source

