acoustic resonator
Optimisation of an acoustic resonator for particle manipulation in air
... air have been reported in the literature[17, 28-30], as has the ability to trap liquid droplets [31, 32]. Manipulation of particles as small as 500 µm in an acoustic resonator has been demonstrated [17]. ...
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A film bulk acoustic resonator oscillator based humidity sensor with graphene oxide as the sensitive layer
... films. Acoustic wave resonators such as quartz crystal microbalance (QCM), surface acoustic wave (SAW) and film bulk acoustic resonator (FBAR) have also been utilized to develop humidity ...
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Film bulk acoustic resonator pressure sensor with self temperature reference
... A novel film bulk acoustic resonator (FBAR) with two resonant frequencies which have opposite reactions to temperature changes has been designed. The two resonant modes respond differently to changes in ...
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Streptavidin Modified ZnO Film Bulk Acoustic Resonator for Detection of Tumor Marker Mucin 1
... the acoustic output signal of the transducer to reflect the physical and chemical changes of the measured substance ...surface acoustic wave sensor (SAW), and thin-film bulk acoustic resonator ...
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Computational analysis of air intake system for internal combustion engine in presence of acoustic resonator
... The resonator can be used to improve the volumetric efficiency of the ...of resonator and it ...the resonator through its neck as a result increasing pressure inside the ...the resonator, thus ...
8
A film bulk acoustic resonator oscillator based humidity sensor with graphene oxide as the sensitive layer
... films. Acoustic wave resonators such as quartz crystal microbalance (QCM), surface acoustic wave (SAW) and film bulk acoustic resonator (FBAR) have also been utilized to develop humidity ...
14
VHF-UHF passive filter synthesis based on acoustic resonator structures
... commercial resonator is individually packaged, these resonators experience a large insertion ...in resonator packaging. Even though the commercial resonator filter design presented in Chapter 4 ...
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The thermophysical properties of gases determined using an annular acoustic resonator
... lated from acoustic measurements of modes of different symmetry in a cylindrical resonator. In this work, only the low frequency azimuthal modes were measured, hence modes[r] ...
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A hemispherical acoustic resonator for the measurement of the speed of sound in gases.
... The zero frequency speed of sound was calculated using equation (1.1.3) and the various correction terms given by the equations in chapter 3, which include contributions [r] ...
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Generalization of a 3 D Acoustic Resonator Model for the Simulation of Spherical Enclosures
... spherical resonator, whose reso- nances can be found by computing the local extremal points of Bessel ...spherical resonator, depicted in Figure 2, exploited the fact that the extremal points are ...
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Design and simulation of FBAR with different electrodes material configuration
... bulk acoustic resonator (FBAR) has been designed and simulated for the frequency, quality factor, coupling coefficient, impedance response and BVD parameter for the different electrode ...
6
DESIGN AND FABRICATION OF THERMO ACOUSTIC REFRIGERATION SYSTEM
... thermo acoustic refrigeration device (TAR) includes an acoustic wave generation device arranged directed to the channel of a hollow tube, and a regenerator provided at a predetermined position in the ...
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High frequency surface acoustic wave resonator based sensor for particulate matter detection
... that acoustic wave technology has great potential for application in airborne particle ...Moreover, acoustic resonator devices can be integrated with CMOS interface circuitry to obtain sensitive, ...
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Porous silicon bulk acoustic wave resonator with integrated transducer
... bulk acoustic wave (BAW) devices for filters and resonators. Acoustic filters such as surface acoustic wave (SAW) filters and BAW filters are a cornerstone of modern wireless communication as they enable ...
6
A theoretical model of an ultrasonic transducer incorporating spherical resonators
... Ultrasound is employed in a variety of technological applications which include penetration of a medium and analysis of the reflected wave (medical imaging and non-destructive evaluation) and focused energy supply ...
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Electric Equivalent Circuit for the Thickened Edge Load Solution in a Bulk Acoustic Wave Resonator
... concept is not accomplished, leading to some of the trapped energy leaking away [2–4]. In order to avoid or minimize the unwanted resonances, some techniques have been applied to the BAW resonator design. On one ...
11
Passive acoustic thermometry
... Figure 7 – Frequency response magnitude for different quarter wavelength resonator pipe diameters. The three resonators compared in figure 7 were a 13mm ID aluminium tube, a scaffolding pole and a Perspex tube of ...
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Turbulence of Second Sound Waves in Superfluid 4He: Effect of Low Frequency Resonant Perturbations
... It has been established 9 that a steady-state Kolmogorov-like wave energy cas- cade of acoustic turbulence can be formed in He II. It involves a flux of energy through the spectral range towards high frequencies, ...
9
Resonator probe for photoacoustic measurement
... expected acoustic resonance of the cell, and then measured either the frequency of an odd harmonic (for frequency locking) or the phase angle of the sound relative to the modulation phase (for phase ...
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The application of Helmholtz resonance to determination of the volume of solids, liquids and particulate matter : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Instrumentation and Process Engineering
... an acoustic barrier six thin ...an acoustic barrier was analysed free from a volume induced frequency ...The resonator configuration consisted of a 3L chamber and a 170mm port with a diameter of ...
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