Piezoelectric Resonators and Applications

Meeker, T.R.

doi:10.1002/3527600434.eap338

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…Schematic representations of the rotations used for the platecoordinate and Christoffel-Bechmann methods. In the plate-coordinate method ͑x , y , z͒ are the crystallographic axes, ͑x 1 Ј, x 2 Ј, x 3 Ј͒ are the plate axes, and the ͑x 1 Ј, x 3 Ј͒ plane coincides with the phase front. In the ChristoffelBechmann method, ͑x , y , z͒ are the crystallographic axes, x 2 is the propagation direction, and the plane wave phase front is specified by and .…”

Section: ͑13͒mentioning

confidence: 99%

Properties of transducers and substrates for high frequency resonators and sensors

Wittstruck

Emanetoglu

et al. 2005

The Journal of the Acoustical Society of America

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Properties of transducers and substrates for bulk acoustic wave resonators and sensors are described. These resonators utilize one-dimensional thickness vibrations of structures consisting of a low-loss substrate crystal surmounted by a thin active piezoelectric film that drives the composite in resonant modes to achieve gigahertz frequencies. The structures considered include oblique orientations of the substrate, leading to generation of coupled elastic modes in the composite. A modified Christoffel-Bechmann ͑CB͒ formalism is presented to calculate acoustic wave speeds and displacements in the piezoelectric film transducer and the substrate. The CB method also yields the piezoelectric coupling coefficients of arbitrarily oriented piezofilms, for electric fields impressed either along the thickness or laterally. The calculations apply generally to transducer and substrate crystals of any symmetry class. The piezoelectric portion is then made specific for films of class 6 mm ͑wurtzite structure͒ with arbitrary orientation on the substrate, and the substrate calculations are specified for class 3m materials, but apply also to any substrate with 3m or 32 symmetry. Zinc oxide and sapphire are used in an example of the acoustic resonator structure.

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Section: ͑13͒mentioning

confidence: 99%

Properties of transducers and substrates for high frequency resonators and sensors

Wittstruck

Emanetoglu

et al. 2005

The Journal of the Acoustical Society of America

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“…A quartz resonator [3,4] is a quartz plate or a tuning fork with two electrodes, which has definite resonance frequencies. The mechanical and electrical oscillations in the resonator are strictly interrelated and occur with low losses.…”

Section: Introductionmentioning

confidence: 99%

Experiments with a quartz resonator

Kraftmakher¹

2013

Eur. J. Phys.

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Experiments with a quartz resonator are described: (i) the frequency response, the quality factor, and the transient processes; (ii) the temperature dependence of the resonance frequency; and (iii) the parameters of the equivalent impedance. A popular quartz resonator designed for generating oscillations of frequency 32 768 Hz (= 215) serves as an example. A new data-acquisition system from PASCO Scientific is used for the measurements. The experiments employ 1 ppm frequency resolution, but are well suited for undergraduate laboratories.

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Piezoelectric resonators loaded with viscoelastic and nonuniform media

Ballato¹

Proceedings of the 2002 IEEE International Frequency Control Symposium and PDA Exhibition (Cat. No.02CH37234)

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This paper uses a simple, plane bulk acoustic wave model to discuss effects arising from changes occurring at the vibrating surfaces of a piezoelectric resonator, when exposed to coatings having various properties, as well as a variety of interfacial contact behaviors. The effect of air loading on the Q values of the three thickness modes of an SC-cut quartz resonator is computed for various pressures as an example of mode coupling by mechanical boundary conditions.

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Piezoelectric Resonators and Applications

Cited by 3 publications

References 20 publications

Properties of transducers and substrates for high frequency resonators and sensors

Properties of transducers and substrates for high frequency resonators and sensors

Experiments with a quartz resonator

Piezoelectric resonators loaded with viscoelastic and nonuniform media

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