Academic literature on the topic 'Fringing-fields'

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Journal articles on the topic "Fringing-fields"

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Sloggett, G. J., N. G. Barton, and S. J. Spencer. "Fringing fields in disc capacitors." Journal of Physics A: Mathematical and General 19, no. 14 (1986): 2725–36. http://dx.doi.org/10.1088/0305-4470/19/14/012.

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Martirosyan, Yu L. "Effect of fringing fields in storage rings." Technical Physics 48, no. 10 (2003): 1330–32. http://dx.doi.org/10.1134/1.1620130.

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Sloggett, G. J., N. G. Barton, and S. J. Spencer. "Addendum to 'Fringing fields in disc capacitors'." Journal of Physics A: Mathematical and General 20, no. 12 (1987): 4061–62. http://dx.doi.org/10.1088/0305-4470/20/12/053.

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Gennarakis, G. G., and T. J. M. Zouros. "Experimental energy resolution of a paracentric hemispherical deflector analyzer for different entry positions and bias simulated in SIMION." HNPS Proceedings 21 (March 8, 2019): 100. http://dx.doi.org/10.12681/hnps.2011.

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Results from the simulation of a biased paracentric hemispherical deflector analyzer (HDA) with injection lens are presented. The finite differences electron optics software SIMION was used to perform Monte Carlo type trajectory simulations in an effort to investigate the focusing effects of the HDA entry and exit fringing fields which are used to improve energy resolution - a novel feature of this type of analyzer. Comparisons to recent experimental results are also presented. Biased paracentric HDAs represent a novel class of HDAs, which use the lensing action of the strong fringing fields at the HDA entry, to restore the first order focus characteristics of ideal HDAs in a controlled way. The improvement in energy resolution and transmission without the use of any additional fringing field correction electrodes is of particular interest to modern analyzers using position sensitive detectors.
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Dean, Robert, Aditi Rane, Colin Stevens, Michael Baginski, Zane Hartzog, and David Elton. "Implementing Fringing Field Sensors in PCB Technology." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2010, DPC (2010): 000579–98. http://dx.doi.org/10.4071/2010dpc-ta22.

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Interdigitated electrode structures are well suited for realizing capacitors where a significant percentage of the total capacitance in due to the out of plane fringing fields. An object that interferes with the fringing fields will then change the measurable capacitance between the electrodes. Therefore this configuration can be used as a sensor for the object that interferes with the fringing fields and is called a capacitive fringing field sensor. These types of sensors have been used in many applications, such as water detection, moisture content measurement and as proximity switches. Printed circuit board (PCB) technology is particularly useful for realizing this type of sensor architecture. The interdigitated electrode structures can be patterned in the Cu cladding on one or both sides of the substrate. The solder mask coating can then be used to insulate the electrodes to prevent shorting in the presence of water or other conductive substances. The size and spacing of the electrode structures can be optimized to adjust the sensitivity of the sensor to the measurand of interest. The implementation of this type of sensor in PCB technology has several advantages when compared to traditional MEMS technologies. External electronics can readily be attached to the PCB substrate. Very large sensor panels can be manufactured easily and economically. Other types of MEMS sensors have been implemented in PCB technology in recent years. This sensor is compatible with those types of sensors and could be used to augment sensor suites implemented in PCB MEMS technology. Demonstration prototype fringing field sensors were implemented in PCB technology for measuring the mass of small quantities of water, for measuring soil moisture content and for use as capacitive touch switches.
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Singh Dhingra, Tejveer. "Influence of Variable Plate Separation on Fringing Electric Fields in Parallel-Plate Capacitors." International Journal of Science and Research (IJSR) 11, no. 11 (2022): 387–89. http://dx.doi.org/10.21275/sr221026094109.

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Krakover, Naftaly, B. Robert Ilic, and Slava Krylov. "Micromechanical resonant cantilever sensors actuated by fringing electrostatic fields." Journal of Micromechanics and Microengineering 32, no. 5 (2022): 054001. http://dx.doi.org/10.1088/1361-6439/ac5a61.

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Abstract We report on the architecture and operational principle of a resonant cantilever-type displacement sensor. The device is actuated electrostatically by a side electrode that is coplanar with the cantilever and by a gap-closing electrode positioned underneath the beam. The unique electrode geometry combined with the appropriate actuating voltages allows positioning of the cantilever in close proximity to the bistability threshold, where the frequency sensitivity to the electrode displacement is enhanced. Using a reduced order model backed by numerical simulations, the dependencies of the device frequency on the beam’s deflections and the actuation voltages were mapped. We show wide-range tunability that spans a range between softening and hardening behavior. We demonstrate displacement sensing using fabricated single crystal silicon ≈2000 µm long, ≈5 µm thick cantilevers. When compared to a resonant cantilever sensor actuated solely by a gap-closing electrode, measurements from our fringing field actuated devices show a four times higher sensitivity of ≈98 Hz µm−1. The suggested approach may find applications in a broad range of micro and potentially nano-scale applications including resonant inertial, force, mass and bio-sensors.
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Mayergoyz, I., and D. Bloomberg. "Analytical solution for side-fringing fields in perpendicular recording." IEEE Transactions on Magnetics 22, no. 3 (1986): 163–67. http://dx.doi.org/10.1109/tmag.1986.1064299.

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Krylov, Slava, Bojan R. Ilic, and Stella Lulinsky. "Bistability of curved microbeams actuated by fringing electrostatic fields." Nonlinear Dynamics 66, no. 3 (2011): 403–26. http://dx.doi.org/10.1007/s11071-011-0038-y.

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Marni, Stefano, Raouf Barboza, Ayomide S. Oluwajoba, Riccardo Zamboni, and Liana Lucchetti. "Polarization Coupling between Ferroelectric Liquids and Ferroelectric Solids: Effects of the Fringing Field Profile." Crystals 14, no. 5 (2024): 425. http://dx.doi.org/10.3390/cryst14050425.

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Recent experiments devoted to characterizing the behavior of sessile ferroelectric liquid droplets on ferroelectric solid substrates have shown the existence of a droplet electromechanical Rayleigh-like instability. The instability is induced by the bulk polarization of the ferroelectric fluid, which couples to the polarization of the underlying substrate through its fringing field and solid–fluid interface coupling. With the aim of characterizing this phenomenon, namely the coupling between the polarizations of a fluid and a solid material, we studied the behavior of ferroelectric liquid droplets confined between two solid substrates, arranged in different configurations, realized to generate fringing fields with different profiles. The results show that the features of the droplets instability are indeed affected by the specific fringing field shape in a way dominated by the minimization of the electrostatic energy associated with the bulk polarization of the ferroelectric fluid.
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Book chapters on the topic "Fringing-fields"

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Wollnik, Hermann. "Fringing Fields." In Optics of Charged Particles. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-12-762130-2.50010-8.

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Conference papers on the topic "Fringing-fields"

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Powell, Norman J., Robert W. Kelsall, Gordon D. Love, and Alan Purvis. "Investigation of fringing fields in liquid-crystal devices." In San Diego, '91, San Diego, CA, edited by Jeremy M. Lerner and Wayne R. McKinney. SPIE, 1991. http://dx.doi.org/10.1117/12.49399.

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Baruah, Ratul Kumar, and Roy P. Paily. "Impact of fringing fields in a p-channel junctionless transistor." In 2014 IEEE 2nd International Conference on Emerging Electronics (ICEE). IEEE, 2014. http://dx.doi.org/10.1109/icemelec.2014.7151153.

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Berdnikov, Alexander, Konstantin Solovyev, Nadezhda Krasnova, Sergey Masyukevich, and Alexander Golovitski. "Algorithm for Modeling Fringing Fields of Multipole Ion-Optical Structures." In 2023 International Conference on Electrical Engineering and Photonics (EExPolytech). IEEE, 2023. http://dx.doi.org/10.1109/eexpolytech58658.2023.10318533.

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Albets-Chico, X., D. Grigoriadis, Stavros C. Kassinos, and B. Knaepen. "TURBULENT EFFECTS OF LIQUID METAL FLOW UNDER STRONG FRINGING MAGNETIC FIELDS." In Sixth International Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2009. http://dx.doi.org/10.1615/tsfp6.1100.

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Yang, Qingyuan, Zejian Huang, Tianqi Zhao, and Shangzhong Jin. "Simulation and modeling of quadrupole mass spectrometer fringing fields using SIMION." In 2023 3rd International Conference on Applied Mathematics, Modelling and Intelligent Computing (CAMMIC 2023), edited by Xuebin Chen and Hari Mohan Srivastava. SPIE, 2023. http://dx.doi.org/10.1117/12.2685970.

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Krylov, Slava, Nicola Molinazzi, Tsvi Shmilovich, Uri Pomerantz, and Stella Lulinsky. "Parametric Excitation of Flexural Vibrations of Micro Beams by Fringing Electrostatic Fields." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28684.

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We report on an approach for efficient excitation of large amplitude flexural out-of-plane vibrations of micro beams and present results of theoretical and experimental feasibility study of the suggested principle. An actuating electrode is located symmetrically at the two sides of the beam and is fabricated from the same layer of the wafer. The electrostatic force is engendered by the asymmetry of the fringing fields in the deformed state and acts in the direction opposite to the deflection therefore increasing the effective stiffness of the system. The time-varying voltage applied to the electrode results in the modulation of this electrostatic stiffness and consequently in the parametric excitation of the structure. The device may exhibit large vibrational amplitudes not limited by the pull-in instability common in close-gap actuators. In contrast to previously reported devices excited by the fringing fields, the force considered here is of distributed character. The reduced order model was built using the Galerkin decomposition with linear modes as base functions and the resulting system of nonlinear differential equations was solved numerically. The electrostatic forces were approximated by means of fitting the results of three-dimensional numerical solution for the electric fields. The devices fabricated from a silicon on insulator (SOI) substrate using deep reactive ion etching (DRIE) based process were operated in ambient air conditions and the responses were registered by means of Laser Doppler Vibrometry. The experimental resonant curves were consistent with those predicted by the model. Theoretical and preliminary experimental results illustrated the feasibility of the suggested approach.
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Krylov, Slava, Bojan R. Ilic, and S. Lulinsky. "Two-Directional Switching of Bistable Curved Micro Beams by Fringing Electrostatic Fields." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48544.

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In this work we investigate the feasibility of two-directional switching of a pre-buckled electrostatically actuated micro beam operated by a single electrode fabricated from the same structural layer. The distributed electrostatic force, which is engendered by the asymmetry of the fringing fields in the deformed state, acts in the direction opposite to the deflection of the beam and is of a restoring nature. The reduced order model was built using the Galerkin decomposition and verified using the results of the numerical solution of the differential equation. The actuating force was approximated by fitting the results of the numerical solution of the electrostatic problem. Static stability analysis reveals that the presence of the restoring electrostatic force may result in the suppression of the snap-through instability. We show that two-directional switching of a pre-buckled beam between two stable configurations and bistability cannot be achieved using quasistatic loading but are possible through dynamic instability mechanism. We demonstrate that switching associated with the dynamic snap-through takes place within certain interval of actuation voltages and pulse durations. Theoretical results illustrate the feasibility of the suggested operational principle as an efficient mechanism with application to nonvolatile mechanical memory devices.
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Krylov, Slava, Stella Lulinsky, Bojan R. Ilic, and Inbar Schneider. "Collective Dynamics of Arrays of Micro Cantilevers Interacting Through Fringing Electrostatic Fields." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34904.

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We investigate the collective nonlinear behavior of an array of micro cantilevers interacting by fringing electrostatic fields and fabricated of silicon on insulator (SOI) wafer. The interaction is due to the mechanical coupling originated in the flexibility of the anchor and of the electrostatic coupling through voltage-dependent electrostatic force. In the framework of the reduced order model based on the Galerkin decomposition the array is considered as an assembly of single degree of freedom oscillators. The mechanical coupling matrix is extracted using the full scale finite element analysis of the array while the electrostatic force is approximated by a fit build using the three-dimensional numerical simulation. We show numerically and experimentally that large amplitude collective vibrations of the array can be achieved using parametric excitation while the dynamic properties of the array can be efficiently tuned by the applied voltage.
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Maj, Cezary, and Michal Szermer. "Influence of Fringing Fields on Parallel Plate Capacitance for Capacitive MEMS Accelerometers." In 2020 IEEE XVIth International Conference on the Perspective Technologies and Methods in MEMS Design (MEMSTECH). IEEE, 2020. http://dx.doi.org/10.1109/memstech49584.2020.9109500.

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Al-Alem, Yazan, and Ahmed A. Kishk. "Efficient 60 GHz Antenna Based on Open-End Microstrip Line Fringing Fields." In 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2018. http://dx.doi.org/10.1109/apusncursinrsm.2018.8609412.

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Reports on the topic "Fringing-fields"

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Gabriel, Camelia. Numerical Modelling of Fringing Fields and their Use for Complex Permittivity Measurements at High Frequencies. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada253994.

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