Results 231 to 240 of about 372,868 (297)

A Wideband Trapezoidal Cantilever Beam PVEH with a P-SSHI-QVR Circuit for Low-Frequency Applications. [PDF]

Micromachines (Basel)
Jin Y, Feng B, Jin Y, Lv Y, Zhao Z, Ju J, Shi Z.   +6 more
europepmc   +1 more source

Electrostatically actuated MEMS resonators for magnetic and electric field sensing: a review. [PDF]

Microsyst Nanoeng
Koh D, Jung Y, Kim J.
europepmc   +1 more source

Additively Manufactured Mechanically Tunable Cavity Resonator for Broadband Characterization of Liquid Permittivity. [PDF]

Sensors (Basel)
Phakaew T, Oo TP, Uzair M, Kowitwarangkul P, Chuchuay P, Yeetsorn R, Torrungrueng D, Chudpooti N, Chalermwisutkul S.   +8 more
europepmc   +1 more source

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Resonance-frequency discrimination

The Journal of the Acoustical Society of America, 1988
Measurements of the just-noticeable change in resonance frequency ∼(ΔF)r of a second-order filter are reported. The source signal was either periodic, with or without a smooth change in fundamental frequency, or it was random white noise. These differences in the nature of the source had little effect on ∼(ΔF)r.
J P, Gagné, P M, Zurek
openaire   +2 more sources

Ultrahigh Frequency Nanotube Resonators

Physical Review Letters, 2006
We report carbon-nanotube-based electromechanical resonators with the fundamental mode frequency over 1.3 GHz, operated in air at room temperature. A new combination of drive and detection methods allows for unprecedented measurement of both oscillation amplitude and phase and elucidates the relative mobility of static charges near the nanotube.
H B, Peng, C W, Chang, S, Aloni, T D, Yuzvinsky, A, Zettl   +4 more
openaire   +2 more sources

Resonant frequencies of helical resonators

15th International Conference on Microwaves, Radar and Wireless Communications (IEEE Cat. No.04EX824), 2004
The paper investigates the resonant frequencies of helical resonators. Full-wave 3D electromagnetic analysis is used to verify closed-form formulas known from literature. Corrections to formulas for dominant mode and new formulas for higher modes are proposed. Two-helical resonators filter was designed and measured.
J. Antoniuk, M. Zukocinski, A. Abramowicz, W. Gvvarek   +3 more
openaire   +1 more source