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Journal articles on the topic 'Piezoelectric detection'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Sun, Yiran. "Research on Advanced Imaging System Based on PZT Material and X-ray Tube." Medicine Insights 1, no. 7 (2024): 35–44. http://dx.doi.org/10.70088/1shcwj57.

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Along with the rapid development of social economy and the continuous improvement of people's living standards, medical and health care has taken on an important strategic position. As an important analysis and detection means, biosensing technology plays a key role in the field of healthcare. The piezoelectric biosensor is an innovative biosensor utilizing piezoelectric material for bioanalysis, which has excellent characteristics of good stability, fast detection speed, high accuracy and simple operation, and has important application value in the fields of biomedicine, health monitoring and

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2

Karaseva, N. A., and T. N. Ermolaeva. "Piezoelectric Immunosensors for Toxins' Detection in Foodstuffs." Key Engineering Materials 543 (March 2013): 515–18. http://dx.doi.org/10.4028/www.scientific.net/kem.543.515.

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The procedures of detecting trace concentrations of okadaic acid and staphylococcal enterotoxin A in foodstuffs by the piezoelectric immunosensors have been developed. The conditions for immobilizing antibodies to toxins on the surface of the sensors gold electrode have been facilitated. The calibration curves for the detection of okadaic acid and staphylococcal enterotoxin A are linear in the range of concentrations 5500 ng·ml-1 and 1-80 ng·ml-1, the limits of detection are 1.4 and 0.4 ng·ml-1 correspondingly. The time of analysis does not exceed 30 min. The sensors were tested in detecting o

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3

Hu, Chang De, Mei Rong Zhao, Xiao Bei Deng, and Sha Zhu. "Resonance Frequency Detection System of Piezoelectric Micro-Cantilever." Advanced Materials Research 443-444 (January 2012): 115–20. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.115.

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A kind of resonance frequency detection of piezoelectric micro-cantilever is presented, where there is piezoelectric film deposited. The alternating current is put on the film to make it vibrate, and when resonance frequency happens, the amplitude of piezoelectric micro-cantilever reaches the maximal. A series of experiments have been done by the driving power and detecting power designed by ourselves. The experiments show that resonance frequency can be detected by the amplifier, and the amplitude of the resonance frequency is obviously bigger than the amplitude of the other frequency. The ma

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4

Wang, Qing, Zhou Wan, Zhong Guo Jing, and Xin Xiong. "The Research of Oil Pipeline Leak Detection and Location Based on PVDF Piezoelectric Sensors." Advanced Materials Research 301-303 (July 2011): 1273–77. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1273.

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This paper mainly deals with the problem of oil pipeline leak and difficult to detect its location, combining the trait of our country’s oil pipeline, researching the leak detection and location based on the PVDF piezoelectric sensors. This paper firstly describes the domestic status of pipeline leak detection, and then gives a brief introduction for the PVDF piezoelectric film, finally discusses the pipeline leak detection and location system based on PVDF piezoelectric sensors. Experiments show that the use of PVDF piezoelectric sensors on pipeline leak detection, the leak can be correctly i

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Li, Yanling, Jun Ma, Zhenhai Fan, et al. "A New Low-Cost Piezoelectric Ceramic Strain Detection Method." Processes 13, no. 1 (2025): 258. https://doi.org/10.3390/pr13010258.

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With the rapid development of the electronic information industry, more and more attention has been paid to piezoelectric ceramic materials, but the electrical properties and characteristics of piezoelectric ceramic materials have problems such as high cost and inconvenient measurement. In this paper, a new method of electroinduced strain measurement of piezoelectric ceramics is proposed, and an innovative measuring device is constructed based on the working mode and testing principle of an optical displacement sensor and piezoelectric ceramics. An optical displacement measuring device with a

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6

Sharif-Khodaei, Z., and M. H. Aliabadi. "Damage Identification Using Lamb Waves." Key Engineering Materials 452-453 (November 2010): 29–32. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.29.

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The concept of damage detection using sensors in composite panels is of growing interest, due to the reduction in maintenance activity and increasing of the aircraft safety. Piezoelectric materials have been widely used to build a variety of transducers for activating and receiving Lamb waves which are used for delamination/damage detection. The aim of this paper is to use smart structures for detecting and locating damage in composite panels, by using piezoelectric patches as both sensors and actuators.

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7

Zhao, Shengjie, Nan Wu, and Quan Wang. "Damage Detection of Beams by a Vibration Characteristic Tuning Technique Through an Optimal Design of Piezoelectric Layers." International Journal of Structural Stability and Dynamics 16, no. 10 (2016): 1550070. http://dx.doi.org/10.1142/s0219455415500704.

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An advanced technique for damage detection in beam structures, using a vibration characteristic tuning procedure is developed by an optimal design of piezoelectric materials. Piezoelectric sensors and actuators are mounted on the surface of the host beam to generate excitations for the tuning via a feedback process. The excitations induced by the piezoelectric effect are used to magnify the effect of the damage in the vibration characteristics of the damaged structure to realize an effective damage detection process. To describe the detection process, theoretical models of the cantilevered bea

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8

Mokhtari, Shina, and Mahmoud Al Ahmad. "Portable piezoelectric cardiac abnormality detection." Alexandria Engineering Journal 58, no. 3 (2019): 1053–61. http://dx.doi.org/10.1016/j.aej.2019.09.008.

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9

Rus, G., Felipe García-Sánchez, Andrés Sáez, and R. Gallego. "Damage Detection in Piezoceramics via BEM." Key Engineering Materials 417-418 (October 2009): 381–84. http://dx.doi.org/10.4028/www.scientific.net/kem.417-418.381.

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Piezoelectric ceramics have recently become one of the most used materials in all kinds of electromechanical systems. However, the presence of defects in such materials prevents them from fulfilling their function. A number of numerical, analytical and experimental works are recently being developed to understand the behaviour of piezoelectrics with presence of damage, but very few aimed at locating defects. One of the current challenges in monitoring piezoelectrics is the correct interpretation of the readings from sensors, in order to reliably recover the defect characteristics minimizing un

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10

Tong, Min Ming, Ying Li, Shou Feng Tang, and Fei Han. "A New Thin-Film Piezoelectric Sensor for Easuring Methane Gas." Advanced Materials Research 462 (February 2012): 619–23. http://dx.doi.org/10.4028/www.scientific.net/amr.462.619.

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To measure the concentration of CH4, we developed a thin film piezoelectric acoustic sensor (TFPAS), it accomplishes the detection of CH4 by the absorption of CH4 which can change the oscillation frequency of the piezoelectric crystal. The sensor is mainly composed by the piezoelectric film, sensitive film, silicon substrate and electrodes. The sensitive film is made up of nanometer-sized MgO scattered on pitch-based activated carbon fibers which has a strong adsorption of CH4. The piezoelectric film is a ZnO film which has very high piezoelectric characteristic parameters. The experimental re

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11

Peng, Yu Feng, Long Jin, and Si Hong Lin. "Laser Impulse Detection System Based on Piezoelectric Film Sensor." Advanced Materials Research 529 (June 2012): 130–34. http://dx.doi.org/10.4028/www.scientific.net/amr.529.130.

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In order to use relatively simple approach to detect the laser impulse chose the polymer organic thin-film piezoelectric sensor with high sensitivity, wide dynamic range, good frequency band response and other good characteristics, designed the subsequent amplifying and detecting circuit. The sensor converted non-electricity quantity of laser impact to measurable electricity quantity via piezoelectric effect and the amplifier circuit. After the detection system processing, the final output signal was displayed by the oscilloscope and made simple analysis of the results.

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12

Rezende, Guilherme, and Fabricio Baptista. "High Frequency Performance of Piezoelectric Diaphragms for Impedance-Based SHM Applications." Engineering Proceedings 2, no. 1 (2020): 16. http://dx.doi.org/10.3390/ecsa-7-08185.

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Piezoelectric transducers are used in a wide variety of applications, including damage detection in structural health monitoring (SHM) applications. Among the various methods for detecting structural damage, the electromechanical impedance (EMI) method is one of the most investigated in recent years. In this method, the transducer is typically excited with low frequency signals up to 500 kHz. However, recent studies have indicated the use of higher frequencies, usually above 1 MHz, for the detection of some types of damage and the monitoring of some structures’ characteristics that are not pos

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Takahashi, Kiichi, Kyoichi Ono, Hirokazu Arai, et al. "Detection of Pathologic Heart Murmurs Using a Piezoelectric Sensor." Sensors 21, no. 4 (2021): 1376. http://dx.doi.org/10.3390/s21041376.

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This study aimed to evaluate the capability of a piezoelectric sensor to detect a heart murmur in patients with congenital heart defects. Heart sounds and murmurs were recorded using a piezoelectric sensor and an electronic stethoscope in healthy neonates (n = 9) and in neonates with systolic murmurs caused by congenital heart defects (n = 9) who were born at a hospital. Signal data were digitally filtered by high-pass filtering, and the envelope of the processed signals was calculated. The amplitudes of systolic murmurs were evaluated using the signal-to-noise ratio and compared between healt

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14

Roloff, Thomas, Rytis Mitkus, Jann Niklas Lion, and Michael Sinapius. "3D-Printable Piezoelectric Composite Sensors for Acoustically Adapted Guided Ultrasonic Wave Detection." Sensors 22, no. 18 (2022): 6964. http://dx.doi.org/10.3390/s22186964.

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Commercially available photopolymer resins can be combined with lead zirconate titanate (PZT) micrometer size piezoelectric particles to form 3D-printable suspensions that solidify under UV light. This in turn makes it possible to realize various non-standard sensor geometries which might bring benefits, such as increased piezoelectric output in specific conditions and less interference with incoming waves due to better acoustical adaptation compared to solid PZT ceramics. However, it is unclear whether piezoelectric composite materials are suitable for guided ultrasonic wave (GUW) detection,

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15

Chaiyachate, Panuwat, and Siriwan Chaiyachate. "Detection of Pesticide Residues in Vegetables and Fruits Using Piezoelectric Crystal Biosensor." Advanced Materials Research 979 (June 2014): 16–19. http://dx.doi.org/10.4028/www.scientific.net/amr.979.16.

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We propose a new device for detection of pesticide residues in vegetables and fruits using piezoelectric crystal biosensors. Piezoelectric crystal biosensors are based on the relationship between the resonance frequency of an oscillating piezoelectric crystal and the mass deposited on the crystal surface, which was well established by Sauerbrey. For the piezoelectric crystals vibrating in resonance frequency of the crystal is linearly related to the mass change on the crystal surface. In this project we used quartz crystal piezoelectric as a probe to detect pesticides in vegetables and fruits

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16

Zhang, Jun, Jie Huang, Hong Mei Tang, Xian Hua Li, and Qing Yang Cai. "Human Physiological Signal Recognition Based on Piezoelectric Impedance Technique." Applied Mechanics and Materials 687-691 (November 2014): 4089–92. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.4089.

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In order to verify whether the piezoelectric impedance technology can be applied to detect the physiological signals of human body, the principle of piezoelectric coupling impedance theory and piezoelectric impedance technology using for human physiological signal detection was introduced in this paper. With an experiment platform set up, detection experiments based on the piezoelectric impedance technology were created. And the experimental1 was improved to avoid the influence of man-made factors on experiment result. Two methods were used to deal with the experimental data. The results show

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17

Navghare, Sonali. "Design and Simulation of MEMS Sensor for Detection of Arterial Pulse." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 17, no. 2 (2018): 7247–60. http://dx.doi.org/10.24297/ijct.v17i2.7574.

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The work presented in this paper describe the design and simulation of a MEMS (Micro Electro Mechanical System) system based piezoelectric sensor for detecting arterial pulse in biomedical application. The study is done through the analysis of square and circular diaphragm made out of piezoelectric and MEMS material. In this work, piezoelectric material is used which work on the principle of piezoelectric effect. In piezoelectric effect, diaphragm reorients under stress, form an internal polarization which result in crystal charge on the crystal face that is proportional to applied pressure. W

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18

Liu, Xinglong, and Zhongwei Jiang. "1406 Design piezoelectric Actuator and Sensor for Truss Structure Damage Detection." Proceedings of Conference of Chugoku-Shikoku Branch 2009.47 (2009): 483–84. http://dx.doi.org/10.1299/jsmecs.2009.47.483.

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19

Shaukat, Hamna, Ahsan Ali, Saira Bibi, Wael A. Altabey, Mohammad Noori, and Sallam A. Kouritem. "A Review of the Recent Advances in Piezoelectric Materials, Energy Harvester Structures, and Their Applications in Analytical Chemistry." Applied Sciences 13, no. 3 (2023): 1300. http://dx.doi.org/10.3390/app13031300.

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Energy harvesting from piezoelectric materials is quite common and has been studied for the past few decades. But recently, there have been a lot of new advancements in harnessing energy via piezoelectric materials. In this regard, several studies were carried out in analytical chemistry. This paper provides a detailed review of different piezoelectric materials, their structures, their fabrication processes, and their applications in analytical chemistry. Detection of the various gases percentage in ambient air is a valuable analytical chemistry technique. Additionally, the benefits of using

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20

Campeiro, Leandro M., Ricardo ZM da Silveira, and Fabricio G. Baptista. "Impedance-based damage detection under noise and vibration effects." Structural Health Monitoring 17, no. 3 (2017): 654–67. http://dx.doi.org/10.1177/1475921717715240.

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The electro-mechanical impedance technique has been extensively studied in recent decades as a non-destructive method for detecting structural damage in structural health monitoring applications using low-cost piezoelectric transducers. Although many studies have reported the effectiveness of this detection method, numerous practical problems, such as the effects of noise and vibration, need to be addressed to enable this method’s effective use in real applications. Therefore, this article presents an experimental analysis of noise and vibration effects on structural damage detection in impeda

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21

Wang, Chen, Yanhong Ding, Ke Ma, Xu Ma, Jia Liu, and Liangliang Wei. "Research on the detection effect of the piezoelectric impedance method for defects in bolts with different deviation angles." Insight - Non-Destructive Testing and Condition Monitoring 67, no. 6 (2025): 354–61. https://doi.org/10.1784/insi.2025.67.6.354.

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Given the pervasiveness of the piezoelectric impedance method in the field of ultrasonic and large material damage identification, this study is based on piezoelectric detection technology for bolt damage identification. A two-dimensional bolt model is constructed using finite element simulation software. The admittance value of the piezoelectric sheet at the smooth screw of the bolt is extracted using a precision impedance analyser. The effect of damage on the admittance value of the piezoelectric sheet is evaluated through plotting the conductivity waveforms of defects at varying locations a

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22

Xiaofeng, Cai, N. P. Yadav, and Wang Jun. "Study on Dry-Coupled Ultrasonic Transducer for Solid Rocket Motor Detection." Journal of Nanoelectronics and Optoelectronics 18, no. 6 (2023): 692–98. http://dx.doi.org/10.1166/jno.2023.3445.

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In order to develop a dry-coupled ultrasonic transducer that can detect the internal defects of a solid rocket motor, the piezoelectric vibrator was studied by the finite element method with multiple physical field couplings. Firstly, the vibration modes and corresponding resonant frequencies of the piezoelectric vibrators at 20–300 kHz without power were solved, and it was determined that the piezoelectric vibrator can adopt the structure form of bi-laminated, series three laminated, and parallel three laminated preliminarily. Then the frequency response of the piezoelectric vibrators was ana

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23

Zhou, Yongxin, Yuandong Gu, and Songsong Zhang. "Nondestructive Wafer Level MEMS Piezoelectric Device Thickness Detection." Micromachines 13, no. 11 (2022): 1916. http://dx.doi.org/10.3390/mi13111916.

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This paper introduces a novel nondestructive wafer scale thin film thickness measurement method by detecting the reflected picosecond ultrasonic wave transmitting between different interfacial layers. Unlike other traditional approaches used for thickness inspection, this method is highly efficient in wafer scale, and even works for opaque material. As a demonstration, we took scandium doped aluminum nitride (AlScN) thin film and related piezoelectric stacking layers (e.g. Molybedenum/AlScN/Molybdenum) as the case study to explain the advantages of this approach. In our experiments, a laser wi

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24

Xu, Xiao Fei. "Cymbal Piezoelectric Composite Transducer for Soccer Robot Attitude Detection Application." Applied Mechanics and Materials 513-517 (February 2014): 2851–54. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.2851.

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This paper proposed a soccer robots attitude detection method based on the principle and vibration mode of cymbal piezoelectric composite transducer. Cymbal piezoelectric composite transducers and MEMS-based three-axis low-g sensor were set on some different support points of soccer robot's joint to accomplish attitude detection. The signal processing circuit and algorithm software were designed. The research results showed that the performance parameters of the soccer robot falling down attitude detection system based on cymbal piezoelectric composite transducer are better than the other sens

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25

Kiselev, G., P. Gorelkin, A. Erofeev, D. Kolesov, and I. Yaminsky. "Detection of viruses using piezoelectric cantilevers." Nanoindustry Russia, no. 4 (2015): 62–67. http://dx.doi.org/10.22184/1993-8578.2015.58.4.62.67.

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26

Kalange, A. E., and S. A. Gangal. "Piezoelectric Sensor for Human Pulse Detection." Defence Science Journal 57, no. 1 (2007): 109–14. http://dx.doi.org/10.14429/dsj.57.1737.

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27

Budoya, Danilo, and Fabricio Baptista. "Signal Acquisition from Piezoelectric Transducers for Impedance-Based Damage Detection." Proceedings 2, no. 3 (2017): 130. http://dx.doi.org/10.3390/ecsa-4-04894.

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Damage detection in structural health monitoring (SHM) using piezoelectric transducers has received attention in recent decades for increasing safety and reducing maintenance costs of various types of engineering structures. Among the various methods to detect structural damage, the impedance-based method performs the measurement of the electrical impedance of piezoelectric transducers attached in the monitored structure, which is related to the mechanical properties of the structure due to the piezoelectric effect. Therefore, the impedance measurement is critical to ensure the correct diagnos

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28

Wang, Wenjie, Yi Jiang, and Peter J. Thomas. "Structural Design and Physical Mechanism of Axial and Radial Sandwich Resonators with Piezoelectric Ceramics: A Review." Sensors 21, no. 4 (2021): 1112. http://dx.doi.org/10.3390/s21041112.

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Piezoelectric ceramics are inexpensive functional materials which are widely used in sonar detection, home appliances, meteorological detection, telemetry and environmental protection and other applications. Sensors fabricated from these materials are compact and have fast response characteristics. Their underlying functional methodology is based on the direct piezoelectric effect whereby very small mechanical vibration signals are converted into electrical signals. Piezoelectric resonators are based on the reverse piezoelectric effect and they are widely used for the control of precision inst

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29

Xu, Min Hua, Fa Rong Gao, Lu Lu Chen, Juan Hong Shen, and Shan Shan Ren. "Piezoelectric Energy Harvesting and Testing Based on Forced Vibration." Applied Mechanics and Materials 687-691 (November 2014): 3342–45. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3342.

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The methods of piezoelectric energy harvest and detection based on forced vibration are introduced in this paper. Firstly, the mechanical energy of the forced vibration is converted into alternating current energy by using the piezoelectric harvester, and then the AC currents are rectified through the full bridge rectifier circuits, and finally the capacitor filter circuits are adopted to obtain the stable DC output. It also implements the voltage waveform detection during above energy harvesting process. The experimental results show that piezoelectric oscillator has the characteristics of si

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30

Claes, Leander, Hanna Schmiegel, Clemens Grünsteidl, Sarah Johannesmann, Manuel Webersen, and Bernd Henning. "Investigating peculiarities of piezoelectric detection methods for acoustic plate waves in material characterisation applications." tm - Technisches Messen 88, no. 3 (2021): 147–55. http://dx.doi.org/10.1515/teme-2020-0098.

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Abstract Acoustic waves in plates have proven a viable tool for testing and material characterisation purposes. There are a multitude of options for excitation and detection of theses waves, such as optical and piezoelectric systems. While optical systems, with thermoelastic excitation and interferometric detection, have the benefit of being contactless, they usually require rather complex and expensive experimental setups. Piezoelectric systems are more easily realised but require direct contact with the specimen and usually have a limited bandwidth, especially in case of piezoelectric excita

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31

Dai, Ning, Kaixin Xu, Xudong Hu, Yanhong Yuan, and Jiajia Tu. "Research on an Intelligent Piezoelectric Needle Selector System with Closed-Loop Fault Detection Capability." Electronics 12, no. 20 (2023): 4331. http://dx.doi.org/10.3390/electronics12204331.

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The piezoelectric needle selector is a crucial component of computerized dobby weft knitting machines. With the continuous development of weft knitting machine technology, enhancing the accuracy of piezoelectric needle selector control is essential. Accurate determination of whether the blades are in the correct position would significantly improve the precision of piezoelectric needle selector control. In this study, piezoelectric ceramic sensors were used to collect impact vibration signals when the blades struck the damper baffle. Key hardware circuits were designed for this purpose. A self

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32

Liao, Yiquan, Yichang He, Bin Zhang, et al. "Using the Photo–Piezoelectric Effect of AuPt@BaTiO3 Oxidase Mimetics for Colorimetric Detection of GSH in Serum." Sensors 24, no. 7 (2024): 2242. http://dx.doi.org/10.3390/s24072242.

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Nanozymes possess major advantages in catalysis and biosensing compared with natural nanozymes. In this study, the AuPt@BaTiO3 bimetallic alloy Schottky junction is prepared to act as oxidase mimetics, and its photo−piezoelectric effect is investigated. The synergy between the photo−piezoelectric effect and the local surface plasmon resonance enhances the directional migration and separation of photogenerated electrons, as well as hot electrons induced by the AuPt bimetallic alloy. This synergy significantly improves the oxidase−like activity. A GSH colorimetric detection platform is developed

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Mateescu, Dan, Yong Han, and Arun Misra. "Analysis of the Dynamics and Vibrations of Structures Subjected to Unsteady Aerodynamic Loads for Crack Detection." Key Engineering Materials 417-418 (October 2009): 605–8. http://dx.doi.org/10.4028/www.scientific.net/kem.417-418.605.

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This paper is devoted to the analysis of the dynamics and vibrations of wing-like structures with bonded piezoelectric strips and subjected to unsteady aerodynamic loads for crack detection. Pairs of piezoelectric strips, acting as strain sensors, are bonded at the same locations on the opposite sides of a thin structure executing flexural oscillations. In this crack detection strategy, the measured voltage outputs of the two piezoelectric sensors forming a pair are conveniently subtracted in order to eliminate the voltage corresponding to the same level of strain on both sides. This different

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Gao, Chang Yin, and Wan Quan Li. "Research on the Bending Charge Sensitivity Distribution of Piezoelectric Quartz." Applied Mechanics and Materials 48-49 (February 2011): 980–83. http://dx.doi.org/10.4028/www.scientific.net/amm.48-49.980.

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In order to enhance measurement precision of the piezoelectric micro-actuator, by means of the transformation rule of tensor the research on the Bending Charge Sensitivity Distribution of Piezoelectric Quartz is conducted. First by the theories of elasticity and electromagnetism the torsion stress and bound charge are calculated, and the charge measured by the detection electrodes is obtained, which depend on the piezoelectric coefficient d12. Then using the transformation rule of tensor the piezoelectric coefficient d12 in the new coordinate system is calculated, and according to the unrestra

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Yao, Qingkai, Linfang Xie, Xing Guo, Fapeng Yu, and Xian Zhao. "PVDF Membrane-Based Dual-Channel Acoustic Sensor Integrating the Fabry–Pérot and Piezoelectric Effects." Sensors 23, no. 7 (2023): 3444. http://dx.doi.org/10.3390/s23073444.

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A resonant acoustic wave detector combined with Fabry–Pérot interference (FPI) and piezoelectric (PE) effects based on a polyvinylidene fluoride (PVDF) piezoelectric film was proposed to enhance the ability of the sensor to detect acoustic signals in a specific frequency band. The deformation of circular thin films was indicated by the interference and piezoelectric effects simultaneously, and the noise level was decreased by the real-time convolution of the two-way parallel signal. This study reveals that, at the film’s resonance frequency, the minimum detection limits for the FPI and piezoel

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Chung, Sung Yun, Hwa-Jin Lee, Tae Il Lee, and Youn Sang Kim. "A wearable piezoelectric bending motion sensor for simultaneous detection of bending curvature and speed." RSC Advances 7, no. 5 (2017): 2520–26. http://dx.doi.org/10.1039/c6ra25797f.

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A wearable piezoelectric bending motion sensor for simultaneous detection of bending curvature and speed was successfully developed via analysis of bending motions of piezoelectric elements. This bending sensor is applicable to artificial skin.

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Hong, Yong, Gao Ping Wang, Seung Ho Hwang, Hyun Sik Kim, and Dong Pyo Hong. "Detection of Various Damages Based on Piezoceramic Optical Fiber Sensor." Key Engineering Materials 413-414 (June 2009): 367–72. http://dx.doi.org/10.4028/www.scientific.net/kem.413-414.367.

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A piezoelectric ultrasonic sensing system based on an optical fiber has been developed for detection of various damages. The ultrasonic wave generated from a piezoelectric actuator is guided and propagated in the optical fiber and then sensed by a piezoelectric sensor located at the other end of the fiber. The sensed signal can be influenced by environmental and physical changes around the optical fiber. In this study, the sensitivity of the optical fiber sensor is experimentally studied. Various patterns of damage, such as cracks, loosen bolts, holes, are more common forms in real structures.

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Liu, Boyan, Liuyang Han, Lyuming Pan, et al. "Flexible Multiscale Pore Hybrid Self-Powered Sensor for Heart Sound Detection." Sensors 21, no. 13 (2021): 4508. http://dx.doi.org/10.3390/s21134508.

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This research introduces an idea of producing both nanoscale and microscale pores in piezoelectric material, and combining the properties of the molecular β-phase dipoles in ferroelectric material and the space charge dipoles in order to increase the sensitivity of the sensor and modulate the response frequency bandwidth of the material. Based on this idea, a bi-nano-micro porous dual ferro-electret hybrid self-powered flexible heart sound detection sensor is proposed. Acid etching and electrospinning were the fabrication processes used to produce a piezoelectric film with nanoscale and micros

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Zhang, Jun, Bang Zeng Guo, and Hong Mei Tang. "Detection on the Pulse Signal of Human Body Based on Piezoelectric Impedance Technique." Advanced Materials Research 989-994 (July 2014): 1120–24. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.1120.

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Pulse wave is one of important physiological characters of human body. Detection on pulse sign is helpful for health care and treatment of disease. In order to detect the change of pulse signal of human body, the work principle of detection based on the piezoelectric impedance technique was presented and a new piezoelectric impedance sensor was designed. With an experiment platform set up, detection experiments of pulse signal were created. Two methods were used to deal with the experimental data. Results from a series of experiments intuitively show that with pressure applied to human body bi

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Chen, Junliang, Min Zhang, Yanning Dai, et al. "A force–voltage responsivity stabilization method for piezoelectric-based insole gait analysis for high detection accuracy in health monitoring." International Journal of Distributed Sensor Networks 16, no. 3 (2020): 155014772090544. http://dx.doi.org/10.1177/1550147720905441.

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Gait analysis has become a hot spot in recent years, because it is proven that the status of a vast number of chronic diseases can be reflected by changes in gait. Furthermore, gait analysis can also help in improving the performance of athletes. Among the diverse gait analysis techniques, the piezoelectric-based insole technique has received broad attention due to its merits such as passive detection, high sensitivity, and low power consumption. However, the key coefficient of detecting plantar normal stress, the piezoelectric d33 coefficient, relies on the force frequency, which occupies a r

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Zheleznikova, Olga E., and Svetlana A. Mikaeva. "Soldered joints of piezoelectric products." LAPLAGE EM REVISTA 7, Extra-E (2021): 628–32. http://dx.doi.org/10.24115/s2446-622020217extra-e1244p.628-632.

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The paper considers issues related to the use of capillary luminescent flaw detection for monitoring glass-metal soldered joints of piezoelectric products. Standard methods of leakproofness testing of piezoelectric products are analysed; the framework for the applicability of each of them at the stages of the life cycle of piezoelectric products is established. Based on the results of the studies, a capillary luminescent control method was chosen to check the tightness of glass-metal soldered joints in piezoelectric products. The stages of conducting a capillary luminescent method for monitori

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Al Ahmad, Mahmoud, and Robert Plana. "Vertical displacement detection of an aluminum nitride piezoelectric thin film using capacitance measurements." International Journal of Microwave and Wireless Technologies 1, no. 1 (2009): 5–9. http://dx.doi.org/10.1017/s1759078709000026.

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Piezoelectric materials have a strong interaction between their mechanical and electrical properties that translates into innovative components and circuits architectures. This work describes an original method using the electromechanical properties of the aluminum nitride (AlN) piezoelectric material to characterize its vertical extension when an electric field is applied. The novel techniques based on measurements of a planar parallel plate AlN capacitor without and with bias employing an impedance analyzer. The parallel plate capacitor theory and piezoelectric material analysis are used to

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Zhang, Jun, Jie Huang, Hong Mei Tang, Xian Hua Li, and Xian Wen Zhao. "Numerical Studies of Reinforced Concrete Beam Damage Detection Based on the Piezoelectric Impedance and Neural Network Technology." Applied Mechanics and Materials 687-691 (November 2014): 920–24. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.920.

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Aiming at the problem of reinforced concrete structure crack damage detection, an algorithm of crack damage monitoring based on the piezoelectric impedance technology was presented in this paper. With a piezoelectric coupling beam model was established, the electrical impedance equation of piezoelectric coupling beam was derived. The finite element model of reinforced concrete beam pasting with piezoelectric ceramic piece was established. The effect of different crack depth on the electrical impedance of coupling beam was analyzed. The results show that with the increase of crack depth, impeda

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YIN, SHIH-HSUN. "A NOVEL TECHNIQUE FOR MASS DETECTION OF A PIEZOELECTRIC CANTILEVER USING ACTIVE BIFURCATIONS." International Journal of Structural Stability and Dynamics 10, no. 03 (2010): 441–60. http://dx.doi.org/10.1142/s0219455410003567.

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Most current vibration-based chemical sensors and biosensors use the sensors resonance frequency change to quantify the small mass of chemical and biological agents attached to the surface of the sensors. In contrast, this paper proposes a novel technique for mass detection of a piezoelectric cantilever by actively triggering the bifurcation behavior. The cantilever is forced to bifurcate and exhibit complex dynamics (e.g., chaos) by using a nonlinear feedback excitation. Meanwhile, a feedback loop is constructed by measuring the voltage from a piezoelectric sensor, by processing the signal, a

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Toledo, Javier, Víctor Ruiz-Díez, Maik Bertke, Hutomo Suryo Wasisto, Erwin Peiner, and José Sánchez-Rojas. "Piezoelectric MEMS Resonators for Cigarette Particle Detection." Micromachines 10, no. 2 (2019): 145. http://dx.doi.org/10.3390/mi10020145.

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In this work, we demonstrate the potential of a piezoelectric resonator for developing a low-cost sensor system to detect microscopic particles in real-time, which can be present in a wide variety of environments and workplaces. The sensor working principle is based on the resonance frequency shift caused by particles collected on the resonator surface. To test the sensor sensitivity obtained from mass-loading effects, an Aluminum Nitride-based piezoelectric resonator was exposed to cigarette particles in a sealed chamber. In order to determine the resonance parameters of interest, an interfac

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Stuber, Vincent L., Marios Kotsonis, and Sybrand van der Zwaag. "Boundary layer state detection using piezoelectric sensors." Smart Materials and Structures 31, no. 1 (2021): 015014. http://dx.doi.org/10.1088/1361-665x/ac3900.

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Abstract Two piezoelectric series bimorph sensors were embedded below the skin of a NACA 0012 symmetrical airfoil to detect the local state of the boundary layer during wind tunnel testing. Small vanes piercing the airfoil skin were glued onto the bimorphs providing a mechanical coupling to the local mechanical force fluctuations imparted by the local unsteady boundary layer flow. The state of the boundary layer at the sensor sites was varied by changing the angle of attack. The objective of this work was to establish the ability of this sensor concept to accurately distinguish among typical b

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TAKAMATSU, Ayumi, Katsuya ARITA, Daiki NISHIMURA, Shigeru KUROSAKI, and Jyo SHIMURA. "20317 Defect Detection using Piezoelectric Polymer Film." Proceedings of Conference of Kanto Branch 2013.19 (2013): 287–88. http://dx.doi.org/10.1299/jsmekanto.2013.19.287.

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Storri, Silvia, Tiziana Santoni, and Marco Mascini. "A Piezoelectric Biosensor For DNA Hybridisation Detection." Analytical Letters 31, no. 11 (1998): 1795–808. http://dx.doi.org/10.1080/00032719808005263.

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Kawamata, A., Y. Kadota, H. Hosaka, and T. Morita. "Self-Sensing Piezoelectric Actuator using Permittivity Detection." Ferroelectrics 368, no. 1 (2008): 194–201. http://dx.doi.org/10.1080/00150190802368495.

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Malinski, M., and J. Zakrzewski. "Piezoelectric theory of detection of surface states." European Physical Journal Special Topics 154, no. 1 (2008): 345–49. http://dx.doi.org/10.1140/epjst/e2008-00573-6.

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