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An Impedance-Loaded Orthogonal Frequency-Coded SAW Sensor for Passive Wireless Sensor Networks [PDF]

open access: yesSensors, 2020
A passive wireless impedance-loaded orthogonal frequency-coded (OFC) surface acoustic wave (SAW) sensor for wireless sensor networks was proposed in this paper. One of the chips on OFC SAW tag is connected to an external sensor, which could cause a phase
Xuan Dai   +3 more
doaj   +2 more sources

Single Interdigital Transducer Approach for Gravimetrical SAW Sensor Applications in Liquid Environments [PDF]

open access: yesSensors, 2017
Surface acoustic wave (SAW) devices are well known for mass-sensitive sensor applications. In biosensing applications, chemical and biochemically evoked binding processes on surfaces are detected in liquid environments using delay line or resonator ...
Vu Hoa Nguyen   +3 more
doaj   +2 more sources

High sensitivity SAW hydrogen gas sensor based on thermal conductivity effect [PDF]

open access: yesMicrosystems & Nanoengineering
Wide-range and high-sensitivity hydrogen sensors are critically important for hydrogen safety in aerospace and advanced transportation sectors. This work demonstrates a thermal-conductivity surface acoustic wave (SAW) based sensor to achieve high ...
Baile Cui   +6 more
doaj   +2 more sources

Surface Acoustic Wave (SAW) Vibration Sensors [PDF]

open access: yesSensors, 2011
In the paper a feasibility study on the use of surface acoustic wave (SAW) vibration sensors for electronic warning systems is presented. The system is assembled from concatenated SAW vibration sensors based on a SAW delay line manufactured on a surface ...
Jerzy Filipiak   +2 more
doaj   +3 more sources

A2-Mode Lamb Passive-Wireless Surface-Acoustic-Wave Micro-Pressure Sensor Based on Cantilever Beam Structure [PDF]

open access: yesSensors
Passive-wireless surface-acoustic-wave (SAW) micro-pressure sensors are suitable for extreme scenarios where wired sensors are not applicable. However, as the measured pressure decreases, conventional SAW micro-pressure sensors struggle to meet expected ...
Zhuoyue Duan   +6 more
doaj   +2 more sources

Harnessing exceptional points for ultrahigh sensitive acoustic wave sensing [PDF]

open access: yesMicrosystems & Nanoengineering
Exceptional point (EP) is referred to degeneracies in a non-Hermitian system where two or more eigenvalues and their corresponding eigenvectors coalesce.
Xingyu Lu   +8 more
doaj   +2 more sources

A Three-Dimensional Finite Element Analysis Model of SAW Torque Sensor with Multilayer Structure

open access: yesSensors, 2022
A three-dimensional finite element analysis model of surface acoustic wave (SAW) torque sensor based on multilayer structure is proposed in this paper. Compared with the traditional saw torque sensor with quartz as piezoelectric substrate, the SAW torque
Zhipeng Li   +3 more
doaj   +1 more source

Sensitivity Optimization of Surface Acoustic Wave Yarn Tension Sensor Based on Elastic Beam Theory

open access: yesSensors, 2022
The measurement of yarn tension has a direct impact on the product quality and production efficiency in the textile manufacturing process, and the surface acoustic wave (SAW) yarn tension sensor is a good option for detecting the yarn tension.
Yong Ding, Lili Gao, Wenke Lu
doaj   +1 more source

A high performance surface acoustic wave visible light sensor using novel materials: Bi2S3 nanobelts [PDF]

open access: yes, 2019
Low dimensional Bi2S3 materials are excellent for use in photodetectors with excellent stability and fast response time. In this work, we developed a visible light sensor with good performance based on surface acoustic wave (SAW) devices using Bi2S3 ...
Fu, Chen   +8 more
core   +5 more sources

Piezoelectric Analysis of Saw Sensor Using Finite Element Method [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2013
In this contribution modeling and simulation of surface acoustic waves (SAW) sensor using finite element method will be presented. SAW sensor is made from piezoelectric GaN layer and SiC substrate.
Vladimír KUTIŠ   +6 more
doaj   +1 more source

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