Results 41 to 50 of about 22,792 (197)
50 GHz Piezoelectric Acoustic Filter
IEEE Journal of MicrowavesThis paper presents significant frequency scaling of acoustic filter technology to 50 GHz. This achievement is enabled by the periodically poled piezoelectric film LiNbO3 multilayer stack, in which piezoelectric thin-films of alternating orientations are
Omar Barrera +7 more
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Development of a micromanipulation system with force sensing [PDF]
, 2007 This article provides in-depth knowledge about our undergoing effort to develop an open architecture micromanipulation system with force sensing capabilities.
Khan, Shahzad +6 more
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Active friction-regulated inertia impact piezoelectric actuator
HeliyonIn inertia impact piezoelectric actuators, the phenomenon of high-frequency drive-induced back-stepping poses a significant limitation to their overall performance.
Zhipeng Jin, Xin Song, BaoShan Guo
doaj +1 more source
IEEE Access, 2019 A bolt-clamped type piezoelectric actuator, which could output rotary motions by using longitudinal-torsional hybrid vibration, was proposed and tested in this paper.
Deen Bai +3 more
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Variable - temperature scanning optical and force microscope [PDF]
, 2004 The implementation of a scanning microscope capable of working in confocal, atomic force and apertureless near field configurations is presented. The microscope is designed to operate in the temperature range 4 - 300 K, using conventional helium flow ...
Betzig E. +4 more
core +3 more sources
A Piezoelectric Molecular Cocrystal with Unconventional π-Stacking
Crystal Growth & DesignWe demonstrate the crystallization of a polar octafluoronaphthalene (OFN, \OFN)--phthalazine (Phth, \Phth) cocrystal, formed in a 1:2 ratio by slow evaporation. The crystal structure and vibrational properties of the cocrystal were determined using powder/single-crystal X-ray diffraction (XRD) and Fourier-Transform Infrared (FTIR) spectroscopy, and ...
Samuel G. Dunning +6 more
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CHARACTERIZATION OF PIEZOELECTRIC STACK ACTUATORS FOR VIBROTHERMOGRAPHY
AIP Conference Proceedings, 2011 Vibrothermography, also known as Sonic IR and thermosonics, is an NDE technique for finding cracks and flaws based on vibration‐induced frictional rubbing of unbonded surfaces. The vibration is usually generated by a piezoelectric stack actuator which transduces electrical energy into large amplitude mechanical vibrations.
Jyani Vaddi +4 more
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Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
Sensors, 2022 Piezoelectric actuators with a flexible displacement amplification structure are widely used in the fields of precision driving and positioning. The displacement curve of conventional piezoelectric actuators is asymmetrical and non-linear, which leads to
Weiqing Huang +4 more
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Transistor Switches using Active Piezoelectric Gate Barriers
, 2015 This work explores the consequences of introducing a piezoelectric gate barrier in a normal field-effect transistor. Because of the positive feedback of strain and piezoelectric charge, internal charge amplification occurs in such an electromechanical ...
Ajoy, Arvind +3 more
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All-optical differential current detection technique for unit protection applications [PDF]
, 2013 In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz +3 more
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