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Piezoelectric sensor

About: Piezoelectric sensor is a research topic. Over the lifetime, 7127 publications have been published within this topic receiving 115903 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, a transparent and biocompatible boron nitride nanosheet (BNNS) material with a TFPS device is proposed for wearable electronics, which is able to generate electrical energy from mechanical push force and human movement.

82 citations

Journal ArticleDOI
TL;DR: The purpose of this chapter is to provide a survey of the use of antigens as coatings in quartz crystal microbalances using the piezoelectric immunosensor.
Abstract: A biosensor can be defined as a device incorporating biological material connected to or integrated within a transducer. The specificity and sensitivity is complemented by the transducer, which measures and computes the signal electronically. Many possible biological elements can be combined with various transducers to construct the biosensor.1,2 Some of the more important biological elements and transducers that have been used are listed in Table 9.1.. The purpose of this chapter is to provide a survey of the use of antigens as coatings in quartz crystal microbalances. This use was first proposed by Shons et al.,3 and since this original publication, considerable research has been devoted to the development of the piezoelectric immunosensor.

82 citations

Journal ArticleDOI
TL;DR: In this paper, a damage index (DI) approach for damage detection and localization based on high frequency wave propagation data and low frequency vibration measurements is presented, using the initial measurements performed on an undamaged structure as baseline, damage indices are evaluated from the comparison of the frequency response of the monitored structure with an unknown damage.

82 citations

Journal ArticleDOI
TL;DR: The presented design concept, which can be applied to any engineering system with multimodal harmonic-vibrating skins, was applied to two case studies: an aircraft skin and a power transformer panel, showing larger power generation than EHskin without segmentation or unimodal EH skin.
Abstract: This paper presents an advanced design concept for a piezoelectric energy harvesting (EH), referred to as multimodal EH skin. This EH design facilitates the use of multimodal vibration and enhances power harvesting efficiency. The multimodal EH skin is an extension of our previous work, EH skin, which was an innovative design paradigm for a piezoelectric energy harvester: a vibrating skin structure and an additional thin piezoelectric layer in one device. A computational (finite element) model of the multilayered assembly-the vibrating skin structure and piezoelectric layer-is constructed and the optimal topology and/or shape of the piezoelectric layer is found for maximum power generation from multiple vibration modes. A design rationale for the multimodal EH skin was proposed: designing a piezoelectric material distribution and external resistors. In the material design step, the piezoelectric material is segmented by inflection lines from multiple vibration modes of interests to minimize voltage cancellation. The inflection lines are detected using the voltage phase. In the external resistor design step, the resistor values are found for each segment to maximize power output. The presented design concept, which can be applied to any engineering system with multimodal harmonic-vibrating skins, was applied to two case studies: an aircraft skin and a power transformer panel. The excellent performance of multimodal EH skin was demonstrated, showing larger power generation than EH skin without segmentation or unimodal EH skin.

82 citations

Patent
13 Dec 2000
TL;DR: In this paper, a flexible piezoelectric film sensor was used to monitor the respiration of a patient by correlating the sound generated in the patient's airway with respiratory activity.
Abstract: A method and apparatus for monitoring and/or quantitatively measuring a patient's respiration using a flexible piezoelectric film sensor The apparatus includes a piezoelectric film which converts acoustical waves generated by the patient's respiration into electrical signals The piezoelectric film sensor can be used to monitor the respiration of a patient by correlating the sound generated in the patient's airway with respiratory activity Further, the data generated by the sensor may be further analyzed by a patient monitor to diagnose respiratory conditions

82 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202385
2022134
2021146
2020219
2019251
2018238