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Academic literature on the topic 'Metallic resonator'

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Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Metallic resonator"

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Oliinyk, O. Yu. "VIBRATION FREQUENCY DENSITY CONTROL METHOD IN VIBRATION CONDITIONS." METHODS AND DEVICES OF QUALITY CONTROL, no. 2(43) (December 24, 2019): 41–47. http://dx.doi.org/10.31471/1993-9981-2019-2(43)-41-47.

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The use of existing vibration frequency measuring instruments for monitoring technological parameters inside apparatus and equipment is limited due to the presence of vibrations and industrial noise. The lack of data on the use of part of the technological apparatus as flow resonators through the unexplored basic analytical equations for determining the amplitude-frequency characteristics of such resonators determined the direction of these studies. The article is devoted to studies aimed at establishing the relationship between the vibrational field of the resonator, which is used as part of the technological apparatus with a controlled environment, and its reaction in the form of a change in the frequency or amplitude of the resonator’s own vibrations, which carries information about the properties of the substance in the apparatus. The experimental setup diagram, experimental methodology, and data on determining the oscillation frequency of the resonator under vibration conditions for metallic (corrosion-resistant steel) and non-metallic (organic glass) resonators are presented. The curves obtained from the experimental values were approximated using linear and hyperbolic approximations. It was found that the use of hyperbolic approximation reduces the average approximation error by more than six times. It was found that the error of the hyperbolic approximation error does not exceed 0.022% for a metal resonator and 0.05% for an organic glass resonator. The conducted experimental studies confirm the presence of a determinate coupling of the measured frequency characteristics of the resonator with the density, which was measured inside the equipment. The obtained data was used to develop the scientific and methodological foundations of the vibrational frequency control method in conditions of vibration using a part of the device as a resonator of the vibrational frequency sensor.
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Chikovani, V. V., Yu A. Yatsenko, A. S. Barabashov, P. I. Marusyk, E. O. Umakhanov, and V. N. Taturin. "Improved accuracy metallic resonator CVG." IEEE Aerospace and Electronic Systems Magazine 24, no. 5 (May 2009): 40–43. http://dx.doi.org/10.1109/maes.2009.5109952.

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Sharma, G. N., Sundararajan T., and G. S. Singh. "Design to Operational Parameters Dependency on Quality Factor of Sensor Mechanical Resonators." Giroskopiya i Navigatsiya 29, no. 2 (2021): 3–34. http://dx.doi.org/10.17285/0869-7035.0060.

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The critical functional part of any high performance resonance based sensor is a mechanical resonator. The performance is measured by resonator quality factor (Q-factor). Damping mechanisms such as thermoelastic damping (TED), anchor loss, surface loss, material internal friction, fluid damping and electronics damping are covered in this review with more focus on gyroscope resonators. Dissipations can be reduced by different means. Hence, the effects of various design to operational parameters on the Q-factor for different configurations, sizes and materials are reviewed in detail. Micro scale ring resonators can achieve a Q-factor of the order of hundreds of thousands. Macro scale hemispherical resonators are suitable for ultrahigh Q-factors. High temperature sensor operation is not preferred because of TED, while sub-zero operation is limited by material internal friction. Few orders of dissipation increase are seen with thin film metallic coating due to TED and coating material internal friction. High precision fabrication is mandatory to achieve the designed minimum anchor loss as it is highly sensitive to fabrication imperfections. Q-factor sensitivity to operating pressure is different for different resonator configurations. This review study helps to build a comprehensive mechanical resonator design, realization and operation strategy to achieve high sensor performance. A roadmap on future research requirements for developing compact mass producible CVG type sensors with ultrahigh Q-factor is also highlighted.
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Yan, T., B. E. Jones, R. T. Rakowski, M. J. Tudor, S. P. Beeby, and Nicholas M. White. "Development of Metallic Digital Strain Gauges." Applied Mechanics and Materials 1-2 (September 2004): 179–84. http://dx.doi.org/10.4028/www.scientific.net/amm.1-2.179.

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A joint Brunel-Southampton Universities’ research team has developed digital strain gauges based on a metallic triple-beam resonator structure with thick-film piezoelectric sensor elements. The resonator, an oscillating structure vibrating at resonance, is designed such that its resonant frequency is a function of the measurand. The resonator substrate was fabricated by a double-sided photochemical etching technique and the thick-film piezoelectric elements were deposited by a standard screen-printing process. The new metallic digital strain gauges can be used on stiff structures, have high overload capacities, low power consumption, frequency output for digital processing, and offer prospects for wireless-batteryless operation. The device can be easily mass-produced at low cost for use in a wide range of measuring systems, e.g. load cells, weighing machines, torque transducers and pressure sensors.
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Yang, Qian, Shuangyang Liu, Hongyu Shi, Kai-Da Xu, Xinyue Dai, Hao Du, and Anxue Zhang. "Design of Wideband Bandpass Filter Based on Corrugated Disk Resonator with Multiple Resonant Modes." Materials 14, no. 10 (May 17, 2021): 2614. http://dx.doi.org/10.3390/ma14102614.

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A corrugated disk resonator with eight grooves is proposed for wideband bandpass filter (BPF) design. Due to the spoof localized surface plasmons resonances of the corrugated metallic structure, the dipole, quadrupole, hexapole modes, and a fundamental mode excited by the introduced short-circuited via holes are employed to realize four transmission poles (TPs) in the passband. The theoretical analysis is described by the electric field and current distributions on the resonator. The resonant frequencies can be tuned easily by the parameters of the structure, which can be used to adjust the center frequency and bandwidth of the BPF freely. Furthermore, two resonators are cascaded to obtain eight TPs to improve the selectivity performance. Finally, three fabricated filters demonstrate the design method.
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Wang, Ben-Xin, Chongyang Xu, Haiquan Zhou, and Guiyuan Duan. "Realization of broadband terahertz metamaterial absorber using an anti-symmetric resonator consisting of two mutually perpendicular metallic strips." APL Materials 10, no. 5 (May 1, 2022): 050701. http://dx.doi.org/10.1063/5.0092958.

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This paper presents a scheme to achieve a broadband metamaterial absorber in the terahertz region, which is consisted of an anti-symmetric T-shaped resonator (formed by two mutually perpendicular metallic strips) on top of a metallic back layer separated by an insulator dielectric layer. The anti-symmetric T-shaped resonator can have a strong electromagnetic interaction with the incident beam, resulting in four different absorption peaks having adjacent frequencies, and the superposition effect of these adjacent peaks produces a broadband absorption. The resonance bandwidth of greater than 80% absorption can have 0.58 THz ranging from 1.54 to 2.12 THz, and its relative resonance bandwidth is 31.69%. The resonance bandwidth and relative resonance bandwidth can be scaled by controlling the parameters of two mutually perpendicular metallic strips in the anti-symmetric T-shaped resonator. Moreover, the parameter optimization of the anti-symmetric T-shaped resonator can realize five discrete absorption peaks with adjacent frequencies, and their combined effect can obtain not only broadband absorption but also a greater absorption bandwidth compared with the case of broadband absorption having four absorption peaks.
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Velasco, Jaime, Ignacio Parellada-Serrano, and Carlos Molero. "Fully Metallic Reflectarray for the Ku-Band Based on a 3D Architecture." Electronics 10, no. 21 (October 29, 2021): 2648. http://dx.doi.org/10.3390/electronics10212648.

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This document presents the design and manufacture of a reflectarray (RA) antenna for the Ku-band that is based on a fully-metallic 3D architecture. The reflectarray unit cell is formed by a square-shaped waveguide section ending in a short circuit, which is the reflectarray back ground plane. Each cell has the ability of configuring the phase of its own reflected field by means of resonators perforated on the walls of the cell waveguide section. The resonator-based waveguide cell introduces the 3D character to the design. The geometry of the resonators and the size variation introduces the phase behavior of each cell, thus, conforming the radiation pattern of the reflectarray. This design explores the potential of phase value truncation (six states and two states) and demonstrates that proper pattern results can be obtained with this phase truncation.
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Zamek, Steve, Amit Mizrahi, Liang Feng, Aleksandar Simic, and Yeshaiahu Fainman. "On-chip waveguide resonator with metallic mirrors." Optics Letters 35, no. 4 (February 12, 2010): 598. http://dx.doi.org/10.1364/ol.35.000598.

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Yan, T., B. E. Jones, R. T. Rakowski, M. J. Tudor, S. P. Beeby, and N. M. White. "Thick-film PZT-metallic triple beam resonator." Electronics Letters 39, no. 13 (2003): 982. http://dx.doi.org/10.1049/el:20030611.

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Varadharajan Idhaiam, Kavin Sivaneri, Joshua A. Caswell, Peter D. Pozo, Katarzyna Sabolsky, Konstantinos A. Sierros, Daryl S. Reynolds, and Edward M. Sabolsky. "All-Ceramic Passive Wireless Temperature Sensor Realized by Tin-Doped Indium Oxide (ITO) Electrodes for Harsh Environment Applications." Sensors 22, no. 6 (March 10, 2022): 2165. http://dx.doi.org/10.3390/s22062165.

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In this work, an all-ceramic passive wireless inductor–capacitor (LC) resonator was presented for stable temperature sensing up to 1200 °C in air. Instead of using conventional metallic electrodes, the LC resonators are modeled and fabricated with thermally stable and highly electroconductive ceramic oxide. The LC resonator was modeled in ANSYS HFSS to operate in a low-frequency region (50 MHz) within 50 × 50 mm geometry using the actual material properties of the circuit elements. The LC resonator was composed of a parallel plate capacitor coupled with a planar inductor deposited on an Al2O3 substrate using screen-printing, and the ceramic pattern was sintered at 1250 °C for 4 h in an ambient atmosphere. The sensitivity (average change in resonant frequency with respect to temperature) from 200–1200 °C was ~170 kHz/°C. The temperature-dependent electrical conductivity of the tin-doped indium oxide (ITO, 10% SnO2 doping) on the quality factor showed an increase of Qf from 36 to 43 between 200 °C and 1200 °C. The proposed ITO electrodes displayed improved sensitivity and quality factor at elevated temperatures, proving them to be an excellent candidate for temperature sensing in harsh environments. The microstructural analysis of the co-sintered LC resonator was performed using a scanning electron microscope (SEM) which showed that there are no cross-sectional and topographical defects after several thermal treatments.
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Dissertations / Theses on the topic "Metallic resonator"

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Sakhamuri, Siddhardha Mohan. "CORROSIVITY SENSOR BASED ON METALLIC NANOWIRE ARRAYS." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1467894583.

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Iyer, Srinivasan. "Effects of surface plasmons in subwavelength metallic structures." Doctoral thesis, KTH, Optik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103613.

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The study of optical phenomena related to the strong electromagnetic response of noble metals (silver (Ag) and gold (Au) being most popular) over the last couple of decades has led to the emergence of a fast growing research area called plasmonics named after 'surface plasmons' which are electron density waves that propagate along the interface of a metal and a dielectric medium. Surface plasmons are formed by the coupling of light to the electrons on the metal surface subject to the fulfillment of certain physical conditions and they are bound to the metal surface. Depending on whether the metallic medium is a continuous film or a structure having dimensions less than or comparable to the wavelength of the exciting light, propagating or localized surface plasmons can be excited. The structure can be either a hole or an arbitrary pattern in a metal film, or a metallic particle. An array of subwavelength structures can behave as an effective homogeneous medium to incident light and this is the basis of a new class of media known as metamaterials. Metallic metamaterials enable one to engineer the electromagnetic response to  incident light and provide unconventional optical properties like negative refractive index as one prominent example. Metamaterials exhibiting negative index (also called negative index materials (NIMs)) open the door for super resolution imaging  and development of invisibility cloaks. However, the only problem affecting the utilization of plasmonic media to their fullest potential is the intrinsic loss of the metal, and it becomes a major issue especially at visible-near infrared (NIR) frequencies. The frequency of the surface plasmon is the same as that of the exciting light but its wavelength could be as short as that of X-rays. This property allows light of a given optical frequency to be conned into very small volumes via subwave lengthmetallic structures, that can be used to develop ecient sensors, solar cells, antennas and ultrasensitive molecular detectors to name a few applications. Also, interaction of surface plasmons excited in two or more metallic subwavelength structures in close proximity inuences the far-eld optical properties of the overall coupled system. Some eects of plasmonic interaction in certain coupled particles include polarization conversion, optical activity and transmission spectra mimicking electromagnetically-induced transparency (EIT) as observed in gas based atomicsy stems. In this thesis, we mainly focus on the optical properties of square arrays of certain plasmonic structures popularly researched in the last decade. The structures considered are as follows: (1) subwavelength holes of a composite hole-shape providing superior near-eld enhancement such as two intersecting circles (called' double hole') in an optically thick Au/Ag lm, (2) double layer shnets, (3) subwavelength U-shaped particles and (4) rectangular bars. The entire work is based on electromagnetic simulations using time and frequency domain methods. Au/Ag lms with periodic subwavelength holes provide extraordinarily high transmission of light at certain wavelengths much larger than the dimension of the perforations or holes. The spectral positions of the maxima depend on the shape of the hole and the intra-hole medium, thereby making such lms function as a refractive index sensor in the transmission mode. The sensing performance of the double-hole geometry is analyzed in detail and compared to rectangular holes. Fishnet metamaterials are highly preferred when it comes to constructing a NIM at optical frequencies. A shnet design that theoretically oers a negative refractive index with least losses at telecommunication wavelengths (1.4 1.5 microns) is presented. U-shaped subwavelength metallic particles, in particular single-slit split-ring resonators (SSRRs), provide a large negative response to the magnetic eld of light at a specic resonance frequency. The spectral positions of the structural resonances of the U-shaped particle can be found from its array far field transmission spectrum at normal incidence. An effort is made to clarify our understanding of these resonances with the help of localized surface plasmon modes excited in the overall particle. From an application point of view, it is found that a planar square array of SSRRs eectively functions as an optical half-wave waveplate at the main resonance frequency by creating a polarization in transmission that is orthogonal to that of incident light. A similar waveplate eect can be obtained purely by exploiting the near-eld interaction of dierently oriented neighbouring SSRRs. The physical reasons behind polarization conversion in dierent SSRR-array systems are discussed. A rectangular metallic bar having its dipolar resonance in the visible-NIR is called a nanoantenna, owing to its physical length in the order of nanometers. The excitation of localized surface plasmons, metal dispersion and the geometry of the rectangular nanoantenna make an analytical estimation of the physical length of the antenna from the desired dipolar resonance dicult. A practical map of simulated resonance values corresponding to a variation in geometrical parameters of Au bar is presented. A square array of a coupled plasmonic system comprising of three nanoantennas provides a net transmission response that mimicks the EIT effect. The high transmission spectral window possesses a peculiar dispersion profile that enables light with frequencies in that region to be slowed down. Two popular designs of such plasmonic EIT systems are numerically characterized and compared.

QC 20121017

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Cognee, Kevin. "Hybridization of open photonic resonators." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0002.

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Le contrôle de l'interaction entre la lumière et la matière est d'une importance capitale dans de nombreuses technologies modernes, avec des applications allant de la détection, aux télécommunications et à l'information quantique. Les résonateurs nanophotoniques permettent d'améliorer cette interaction par le confinement et le stockage du champ lumineux.Cette thèse étudie l'hybridation des modes propres des nano et microrésonateurs, et en particulier les propriétés de résonateurs hybrides composés d'une cavité diélectrique et de nanoantennes plasmoniques. Les résonateurs photoniques présentent toujours des pertes, en particulier par rayonnement, et ainsi, ne peuvent être bien décrits que dans le cadre de la théorie des modes quasi-normaux (quasinormal modes - QNM). Nous confirmons la pertinence de telles théories en étudiant numériquement et expérimentalement la perturbation de cavités diélectriques à facteurs de qualité élevés.Ensuite, nous proposons une théorie permettant d’étudier l'hybridation de plusieurs résonateurs pour ainsi prédire les propriétés de l’ensemble. Dans le cas d’hybrides antenne-cavité, des travaux antérieurs ont démontré le grand potentiel de ce type de résonateurs pour améliorer l'interaction lumière-matière au-delà de ce qui accessible avec leurs composants pris individuellement. Nous montrons ici, par le biais de travaux théoriques et expérimentaux, que ces résonateurs offrent également des degrés de contrôle supplémentaires sur les propriétés de la lumière émise, telles que la directionnalité, ou encore l’émission d’ondes présentant un moment angulaire orbital pur. Enfin, nous étudions les performances de tels résonateurs hybrides dans le cadre de l'optomécanique moléculaire. En effet, nous montrons qu'ils constituent une excellente plateforme pour augmenter la diffusion Raman, tout en offrant des canaux d’excitation et d’émission dont les propriétés peuvent-être contrôlées, pour les signaux de pompe et Raman
The control of the interaction between light and matter is of paramount importance in many modern technologies, with applications ranging from sensing to telecommunication and quantum information. Nanophotonic resonators allow to enhance this interaction by the storage and confinement of the light field.This thesis studies the hybridization of eigenmodes of nano- and microresonators, and in particular the properties of hybrid resonators composed of a dielectric cavity and plasmonic nanoantennas. Due to their lossy nature, in particular radiation, photonic resonators can only be well described in the framework of quasinormal modes theory (QNM). We confirm the relevance of such theories by investigating the physics of the perturbation of high-Q dielectric cavities aided by numerical and experimental works.Then we propose a theory to study the hybridization of multiple resonators and predict the properties of the ensemble. In the context of antenna-cavity hybrids, previous works have demonstrated the great potential of such resonators to enhance light-matter interaction further than what is achieved with their components taken individually. Here we show, with theoretical and experimental works that such resonators also offer additional degrees of control over the properties of the emitted light, such as directionality or beams carrying a pure orbital angular momentum. We furthermore investigate the performances of such hybrid resonators in the context of molecular optomechanics. Indeed, we show they can be an excellent platform to enhance Raman scattering, while simultaneously offering input and output channels with controllable properties for the pump and Raman signals
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Javaheri, Rahim Mojtaba [Verfasser], and Martin [Akademischer Betreuer] Dressel. "High frequency spin dynamics investigation of quantum critical matters by metallic coplanar resonators / Mojtaba Javaheri Rahim ; Betreuer: Martin Dressel." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2018. http://d-nb.info/1177800640/34.

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Петренко, Олексій Володимирович. "Удосконалення методів підвищення точності вібраційного гіроскопа з металевим циліндричним резонатором." Thesis, КПІ ім. Ігоря Сікорського, 2020. https://ela.kpi.ua/handle/123456789/36992.

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Робота виконана на кафедрі аерокосмічних систем управління Національного авіаційного університету Міністерства освіти і науки України та у Публічному акціонерному товаристві «Науково-виробниче об’єднання «Київський завод автоматики».
Дисертаційна робота присвячена науковому обґрунтуванню та розробці алгоритмів компенсації внутрішніх похибок та зовнішніх збурень у Коріолісовому вібраційному гіроскопі, а також удосконаленню його складових частин (резонатора, чутливого елементу). Автором розроблено методику та обладнання для робочого місця безелектродного вимірювання динамічних параметрів металевого резонатора після його виготовлення, розроблено конструкцію приладдя для приклеювання п’єзоелектродів до резонатора нової конструкції, методику та обладнання робочого місця для балансування мас. Розроблено та відпрацьовано на експериментальному зразку КВГ методики температурної корекції фаз сигналів квадратури та кутової швидкості, багатопараметричної корекції дрейфу нуля і масштабного коефіцієнту, що призводить до збільшення точності виміру кутової швидкості в умовах дії температурних градієнтів.
In the thesis the following new scientific results are obtained: 1. For the first time, a multi-parameter method of CVG scale factor correction is developed and implemented, which can be used during the CVG operation in the rate and in the differential modes. Ukraine patent have been obtained for this method. 2. Scientifically grounded analysis of a new design of a cylindrical resonator with holes on the walls of a cylinder having higher vibration resistance was first developed and carried out. 3. The multiparameter bias correction algorithm has been developed and implemented, which has advantages over the existing ones by accuracy. 4. For the first time experimental researches were carried out on a manufactured experimental sample of CVG with developed metal cylindrical resonator made of elenvar elloy, which showed high accuracy scale factor and bias drift correction under the action of temperature gradient, as well as high shockvibration resistance of the sample. The practical significance of thesis results are: − comparison of two designs of metallic cylindrical resonators with holes on the bottom and on the wall of the cylinder and by calculations and computer simulation the advantages of the second design over the first one in the part of shock resistance have been substantiated; − аn analysis of the different geometries of the holes has been made. Their influence on the resonant oscillation frequencies of a cylindrical resonator is revealed. Recommendations for the geometry of the resonator and its elements have been developed; − improved design of the base on which the newly designed resonator with holes on the wall of the cylinder is installed; − the choice of electrodes used for oscillation excitation and measurement of the signals is experimentally substantiated; − the technique and equipment for workplace electrodeless measurement of metallic resonator dynamic parameters after its manufacture have been developed; − the influence of frequency mismatch, wave angle and positioning errors of the electrodes on the CVG bias and scale coefficient have been evaluated; − a new accessory design has been developed to attach the electrodes to the new resonator design; − the technique and equipment of the workplace for balancing the mass of the resonator on the fourth harmonic of the unbalance to reduce its frequency mismatch have been developed. The technique was tested in the manufactured ample of CVG; − the technique of measuring the angles of non-orthogonality of the sensitive axis to its mounting surface has been developed and implemented in the experimental sample of CVG; − the use of CVG to improve the accuracy of armament stabilization was analyzed; − improved CVG standing wave control algorithm block diagram, which provides a fast start of the gyroscope when it is turned on at any temperature in the range of operating temperatures; − the techniques for temperature correction of quadrature and angular rate phases, multiparameter correction of CVG bias and scale factor have been developed and tested on experimental sample of CVG, which leads to an increase in the accuracy of measuring angular rate under temperature gradients; − the experimental results showed that the CVG with a metallic resonator is resistant to multiple shocks with amplitude 100 g and its bias is slightly dependent on the shock amplitude and does not exceed 5×10−3 deg/s. The bias sensitivity to vibration perturbations is 2.5×10−3 deg/s/g.
Диссертация посвящена научному обоснованию и разработке алгоритмов компенсации внутренних погрешностей и внешних возмущений в Кориолисового вибрационном гироскопе, а также совершенствованию его составных частей (резонатора, чувствительного элемента). Автором разработана методика и оборудование для рабочего места безэлектродного измерения динамических параметров металлического резонатора после его изготовления, разработана конструкция приспособления для приклеивания пьезоэлектродов к резонатору новой конструкции, методику и оборудование рабочего места для балансировки масс резонатора. Разработано и отработано на экспериментальном образце КВГ методики температурной коррекции фаз сигналов квадратуры и угловой скорости, многопараметрической коррекции дрейфа нуля и масштабного коэффициента, что приводит к увеличению точности измерения угловой скорости в условиях действия температурных градиентов.
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Ates, Kazim Ozan. "Theoretical Investigation Of Metamaterials: Srr Structures And Periodic Arrays Of Thin Conducting Wires." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609485/index.pdf.

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In recent years, there has been an increasing interest on left handed metamaterials because of their possible innovative applications. The pioneer study introducing such materials was brought out by V. G. Veselago in 1968 [1]. In his work, Veselago proposed a medium having simultaneously negative electric permittivity and magnetic permeability and investigated its electromagnetic characteristics. He found out that the electric field, magnetic field and the propagation vector form a left handed triplet, thus named such materials as &ldquo
Left Handed Materials&rdquo
. Despite the significance of Veselago&rsquo
s inferences, the metamaterial theory stayed dormant for nearly 30 years. Towards the end of 1990s, the physically realizable left handed materials were built as the combination of two periodical structures
Split Ring Resonators (SRRs) and metallic thin wire arrays [4-5]. In this thesis, electrical and magnetic characteristics of the left handed metamaterials are theoretically investigated by using the analytical models for their permittivity and permeability functions with respect to frequency. For this purpose, first, two basic metamaterial structures
the Split Ring Resonators and Thin Metallic Wire Arrays are studied individually and their electrical and magnetic characteristics are examined. Finally, the composite left handed structure containing both SRRs and thin wires is studied to investigate the resulting simultaneous resonance properties and to estimate their overall effective permeability and permittivity functions.
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Chen, Chih-Lung, and 陳志龍. "Measurement of dielectric constants of metallic nanoparticles by a microwave dielectric resonator." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/23110876752506515923.

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Ophus, Colin L. "Nanoscale resonators fabricated from metallic alloys, and modeling and simulation of polycrystalline thin film growth." Phd thesis, 2010. http://hdl.handle.net/10048/1143.

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Part I - We have designed a binary metallic alloy for nanoscale resonator applications. We used magnetron sputtering to deposit films with different stoichiometries of aluminum and molybdenum and then characterized the microstructure and physical properties of each film. A structure zone map is proposed to describe the dependence of surface and bulk structure on composition. We then fabricated proof of principle resonators from the Al-32 at%Mo composition, selected for its optimized physical properties. An optical interferometer was used to characterize the frequency response of our resonators. Part II - We investigate the growth of faceted polycrystalline thin films with modeling and simulations. A new analytic model is derived for the case of orientation dependent facet growth velocity and the dependence of growth on initial grain orientations is explicitly calculated. Level set simulations were used to both confirm this analytic model and extend it to include various angular flux distributions, corresponding to different deposition methods. From these simulations, the effects of self-shadowing on polycrystalline film growth are quantitatively evaluated.
Materials Engineering
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Wang, Wen-Hsiang, and 王玟翔. "Conductivity measurements of metallic films at various microwave frequencies using T-resonator method and multilayer micro-strip line." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/52871108131459233786.

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Ophus, Colin. "Nanoscale resonators fabricated from metallic alloys, and modeling and simulation of polycrystalline thin film growth." 2010. http://hdl.handle.net/10048/1143.

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Thesis (Ph. D.)--University of Alberta, 2010.
Title from pdf file main screen (viewed on July 8, 2010). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Doctor of Philosophy, Department of Chemical and Materials Engineering, University of Alberta. Includes bibliographical references.
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Book chapters on the topic "Metallic resonator"

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Nickelson, Liudmila. "Rectangular Hollow Metallic Waveguides and Resonators." In Electromagnetic Theory and Plasmonics for Engineers, 425–543. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2352-2_7.

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Nickelson, Liudmila. "Cylindrical Hollow Metallic Waveguides and Cavity Resonators." In Electromagnetic Theory and Plasmonics for Engineers, 545–609. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2352-2_8.

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Rachford, Frederic, Douglas L. Smith, and Peter F. Loschialpo. "Experiments and Simulations of Microwave Negative Refraction in Split Ring and Wire Array Negative Index Materials, 2D Split-Ring Resonator and 2D Metallic Disk Photonic Crystals." In Physics of Negative Refraction and Negative Index Materials, 217–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72132-1_9.

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Mohr, Ursula. "Vergleich des Einsatzes instabiler und stabiler Resonatoren." In Geschwindigkeitsbestimmende Strahleigenschaften und Einkoppelmechanismen beim CO2-Laserschneiden von Metallen, 78–83. Wiesbaden: Vieweg+Teubner Verlag, 1994. http://dx.doi.org/10.1007/978-3-322-91183-4_9.

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Al-Rizzo, Hussain, Ayman A. Isaac, Sulaiman Z. Tariq, and Samer Yahya. "Decoupled and Descattered Monopole MIMO Antenna Array with Orthogonal Radiation Patterns." In Modern Printed-Circuit Antennas. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.89630.

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This chapter introduces a novel design concept to reduce mutual coupling among closely-spaced antenna elements of a MIMO array. This design concept significantly reduces the complexity of traditional/existing design approaches such as metamaterials, defected ground plane structures, soft electromagnetic surfaces, parasitic elements, matching and decoupling networks using a simple, yet a novel design alternative. The approach is based on a planar single decoupling element, consisting of a rectangular metallic ring resonator printed on one face of an ungrounded substrate. The decoupling structure surrounds a two-element vertical monopole antenna array fed by a coplanar waveguide structure. The design is shown both by simulations and measurements to reduce the mutual coupling by at least 20 dB, maintain the impedance bandwidth over which S11, is less than −10 dB, and reduce the envelope correlation coefficient to below 0.001. The boresight of the far-field radiation patterns of the two vertical monopole wire antennas operating at 2.4 GHz and separated by 8 mm (λo/16), where λo is the free-space wavelength at 2.45 GHz, is shown to be orthogonal and inclined by 45° with respect to the horizontal (azimuthal) plane while maintaining the shape of the isolated single antenna element.
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Conference papers on the topic "Metallic resonator"

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Rashidian, Atabak, and Lotfollah Shafai. "Super-miniaturized dielectric-metallic resonator antennas." In 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2015. http://dx.doi.org/10.1109/aps.2015.7305008.

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Zhou, Yanyan, Di Zhu, Xia Yu, and Feng Luan. "Metallic grating coupled whispering gallery mode resonator." In Frontiers in Optics. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/fio.2013.fth3e.4.

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Mizernik, V. N., and A. A. Shmat'ko. "Waveguide-ferrit resonator with lateral metallic films." In Telecommunication Technology" (CriMiCo 2008). IEEE, 2008. http://dx.doi.org/10.1109/crmico.2008.4676469.

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Chen, Ruobing, Xinbai Li, Qingzhong Deng, Jurgen Michel, and Zhiping Zhou. "Thermally tunable resonator using directly integrated metallic heater." In International Conference on Optical Instruments and Technology 2015, edited by Zhiping Zhou, Changhe Zhou, and Pavel Cheben. SPIE, 2015. http://dx.doi.org/10.1117/12.2192822.

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Malheiros-Silveira, Gilliard N., and Hugo E. Hernandez-Figueroa. "Excitation of metallic coplanar waveguide by dielectric resonator nanoantenna." In 2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC). IEEE, 2015. http://dx.doi.org/10.1109/imoc.2015.7369150.

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Shaik, Latheef A., Chinmoy Saha, Shivam Arora, and Jawad Y. Siddiqui. "Bandwidth reconfigurable cylindrical dielectric ring resonator antenna with metallic loading." In 2015 IEEE Applied Electromagnetics Conference (AEMC). IEEE, 2015. http://dx.doi.org/10.1109/aemc.2015.7509201.

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Chikovani, V. V., I. M. Okon, A. S. Barabashov, and P. Tewksbury. "A set of high accuracy low cost metallic resonator CVG." In 2008 IEEE/ION Position, Location and Navigation Symposium. IEEE, 2008. http://dx.doi.org/10.1109/plans.2008.4569975.

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Fhafhiem, N., P. Krachodnok, and R. Wongsan. "The circularly polarized resonator antenna using double polarizing metallic EBG." In 2012 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP). IEEE, 2012. http://dx.doi.org/10.1109/apcap.2012.6333133.

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Huang, Hongjia, and Lei Ge. "A Wideband Cylindrical Dielectric Resonator Antenna Using Inserted Metallic Ring." In 2020 IEEE Asia-Pacific Microwave Conference (APMC 2020). IEEE, 2020. http://dx.doi.org/10.1109/apmc47863.2020.9331728.

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Guha, Debatosh, Chandreyee Sarkar, and Chandrakanta Kumar. "Dielectric resonator antenna: A solution for its mount on metallic body." In 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2017. http://dx.doi.org/10.1109/apusncursinrsm.2017.8072925.

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