Results 1 to 10 of about 7,182,893 (348)

Void-Engineered Metamaterial Delay Line with Built-In Impedance Matching for Ultrasonic Applications [PDF]

open access: yesSensors
Metamaterials exhibit unique ultrasonic properties that are not always achievable with traditional materials. However, the structures and geometries needed to achieve such properties are often complex and difficult to obtain using common fabrication ...
Rajendra P. Palanisamy   +3 more
doaj   +2 more sources

Topological Acoustic Delay Line [PDF]

open access: yesPhysical Review Applied, 2018
Topological protected wave engineering in artificially structured media is at the frontier of ongoing metamaterials research that is inspired by quantum mechanics. Acoustic analogues of electronic topological insulators have recently led to a wealth of new opportunities in manipulating sound propagation with strikingly unconventional acoustic edge ...
Zhang, Zhiwang   +5 more
openaire   +3 more sources

A Novel Love Wave Mode Sensor Waveguide Layer with Microphononic Crystals

open access: yesApplied Sciences, 2021
Surface acoustic wave (SAW) sensors have been applied in various areas with many advantages, such as their small size, high sensitivity and wireless and passive form. Love wave mode sensors, an important kind of SAW sensor, are mostly used in biology and
Yahui Tian   +6 more
doaj   +1 more source

A New Chipless RFID Permittivity Sensor System

open access: yesIEEE Access, 2021
Permittivity sensing is commonly utilized in multiple fields for various applications. In this study, an enhanced RFID (Radio Frequency Identification) permittivity sensor system is designed. Additionally, we investigated the signal processing procedures
Yang Wang   +4 more
doaj   +1 more source

Modern Physical-Mathematical Models and Methods for Design Surface Acoustic Wave Devices: COM Based P-Matrices and FEM in COMSOL

open access: yesMathematics, 2022
Comparative results of calculation and measurement of the frequency responses of the surface acoustic waves filter on a piezoelectric substrate of 64°YX-cut lithium niobate and delay line on a piezoelectric substrate of 128°YX-cut lithium niobate is ...
Aleksey S. Koigerov
doaj   +1 more source

Synaptic Delays for Insect-Inspired Temporal Feature Detection in Dynamic Neuromorphic Processors

open access: yesFrontiers in Neuroscience, 2020
Spiking neural networks are well-suited for spatiotemporal feature detection and learning, and naturally involve dynamic delay mechanisms in the synapses, dendrites, and axons.
Fredrik Sandin, Mattias Nilsson
doaj   +1 more source

Transfer Bandwidth Optimization for Multichannel Time-Correlated Single-Photon-Counting Systems Using a Router-Based Architecture: New Advancements and Results

open access: yesPhotonics, 2023
Time-correlated single-photon counting (TCSPC) is a powerful technique for time-resolved measurement of fast and weak light signals used in a variety of scientific fields, including biology, medicine, and quantum cryptography.
Andrea Giudici   +3 more
doaj   +1 more source

High Resolution Delay Line Readout Electronics for the FIMS 2-D Position Sensitive Detector [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
We designed two-dimensional position sensitive MCP(microchannel plate) detector for FIMS, which is composed of MCP, delay line anode, and delay line readout electronics. And also, we fabricated and tested for the operation stability and resolution of the
J. G. Rhee   +15 more
doaj   +1 more source

Enhanced Sensitivity of Surface Acoustic Wave-Based Rate Sensors Incorporating Metallic Dot Arrays

open access: yesSensors, 2014
A new surface acoustic wave (SAW)-based rate sensor pattern incorporating metallic dot arrays was developed in this paper. Two parallel SAW delay lines with a reverse direction and an operation frequency of 80 MHz on a same X-112°Y LiTaO3 wafer are ...
Wen Wang   +4 more
doaj   +1 more source

Fractionally addressed delay lines [PDF]

open access: yesIEEE Transactions on Speech and Audio Processing, 2000
11 pages, 19 figures, to be published in IEEE Transactions on Speech and Audio Processing Corrected ACM ...
openaire   +4 more sources

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