Resonant frequency temperature coefficients for the piezoelectric resonators working in various vibration modes

Erhart, Jiřı́; Rusin, L.; Seifert, L.

doi:10.1007/s10832-007-9062-1

Cited by 12 publications

(2 citation statements)

References 6 publications

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“…The resonator’s radial stress, induced by external pressure, causes a proportional variation in its resonant frequency, granting us to detect pressure changes by measuring the frequency shift [ 19 ].…”

Section: Methodsmentioning

confidence: 99%

Comparison and Verification of Three Algorithms for Accuracy Improvement of Quartz Resonant Pressure Sensors

Yao,

Xu,

Jing

et al. 2023

Micromachines

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Pressure measurement is of great importance due to its wide range of applications in many fields. AT-cut quartz, with its exceptional precision and durability, stands out as an excellent pressure transducer due to its superior accuracy and stable performance over time. However, its intrinsic temperature dependence significantly hinders its potential application in varying temperature environments. Herein, three different learning algorithms (i.e., multivariate polynomial regression, multilayer perceptron networks, and support vector regression) are elaborated in detail and applied to establish the prediction models for compensating the temperature effect of the resonant pressure sensor, respectively. The AC-cut quartz, which is sensitive to temperature variations, is paired with the AT-cut quartz, providing the essential temperature information. The output frequencies derived from the AT-cut and AC-cut quartzes are selected as input data for these learning algorithms. Through experimental validation, all three methods are effective, and a remarkable improvement in accuracy can be achieved. Among the three methods, the MPR model has exceptionally high accuracy in predicting pressure. The calculated residual error over the temperature range of −10–40 °C is less than 0.008% of 40 MPa full scale (FS). An intelligent automatic compensation and real-time processing system for the resonant pressure sensor is developed as well, which may contribute to improving the efficiency in online calibration and large-scale industrialization. This paper paves a promising way for the temperature compensation of resonant pressure sensors.

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Section: Methodsmentioning

confidence: 99%

Comparison and Verification of Three Algorithms for Accuracy Improvement of Quartz Resonant Pressure Sensors

Yao,

Xu,

Jing

et al. 2023

Micromachines

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“…There are many strategies for performance increase in specific applications for the piezoelectric transformer. At first, theoretical calculation of resonator shape, geometry and resonant modes formulate the optimal working conditions of PT [3,4]. The second main direction of improving PT efficiency is connected with material science development, particularly with nano-powder technologies improved by various rare earth elements doping or solid solutions variation [5].…”

Section: Introductionmentioning

confidence: 99%

Electrical and Mechanical Examination of PLZT/PZT Graded Structure for Photovoltaic Driven Piezoelectric Transformers

Kozielski

Płońska

Bućko³

2010

MSF

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Lanthanum-modified lead zirconate titanate (PLZT) ceramic materials have gained considerable attention due to their photostriction, which is the superposition of photovoltaic and piezoelectric effects. Functionally Graded Materials (FGM) implemented in construction of Piezoelectric Transformer (PT) can be used for direct converting photonic energy to electrical one by implementing photostrictive actuators with piezoelectric generator in one graded structure of piezoelectric transformer. Possible application in electronic industry needs thoroughly electrical and mechanical characterisation of this new FGM structure constructed from the PLZT/PZT material. Measurements presented in this work reveal high electrical anisotropy of this graded structure and the Impedance Spectroscopy (IS) proved to be a method capable to present such inequality in form of well separated semicircles. Additionally, dielectric measurements demonstrated that the characteristics of the graded structure are not a simply addition of starting materials parameters but are deeply influenced by a predominantly diffusion direction. Finally, additional nano-mechanical and -electrical methods are used for clarifying the complexity of the integration process of FGMs.

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Development of Novel Piezoelectric Biosensor Using PZT Ceramic Resonator for Detection of Cancer Markers

Fong

Cheung

et al. 2017

Methods in Molecular Biology

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A novel biosensor based on piezoelectric ceramic resonator was developed for direct detection of cancer markers in the study. For the first time, a commercially available PZT ceramic resonator with high resonance frequency was utilized as transducer for a piezoelectric biosensor. A dual ceramic resonators scheme was designed wherein two ceramic resonators were connected in parallel: one resonator was used as the sensing unit and the other as the control unit. This arrangement minimizes environmental influences including temperature fluctuation, while achieving the required frequency stability for biosensing applications. The detection of the cancer markers Prostate Specific Antigen (PSA) and α-Fetoprotein (AFP) was carried out through frequency change measurement. The device showed high sensitivity (0.25 ng/ml) and fast detection (within 30 min) with small samples (1 μl), which is compatible with the requirements of clinical measurements. The results also showed that the ceramic resonator-based piezoelectric biosensor platform could be utilized with different chemical interfaces, and had the potential to be further developed into biosensor arrays with different specificities for simultaneous detection of multiple analytes.

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Resonant frequency temperature coefficients for the piezoelectric resonators working in various vibration modes

Cited by 12 publications

References 6 publications

Comparison and Verification of Three Algorithms for Accuracy Improvement of Quartz Resonant Pressure Sensors

Comparison and Verification of Three Algorithms for Accuracy Improvement of Quartz Resonant Pressure Sensors

Electrical and Mechanical Examination of PLZT/PZT Graded Structure for Photovoltaic Driven Piezoelectric Transformers

Development of Novel Piezoelectric Biosensor Using PZT Ceramic Resonator for Detection of Cancer Markers

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