Results 111 to 120 of about 92,229 (292)
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
Intelligent Wearable Wrist Pulse Detection System Based on Piezoelectric Sensor Array. [PDF]
Sensors (Basel), 2023 Liu YY, Lv YX, Xue HB.
europepmc +1 more source
Advanced Materials, EarlyView.Multiscale ionic liquid segregation into nano‐sized domains in the unconfined amorphous polymer phase and into micron‐sized pores enables a coupled magneto‐ and electroactive responses. ABSTRACT A multiscale understanding of the structure of ionogels – nanoparticle‐free polymer composites incorporating ionic liquids – is essential for enhancing their ...
Andrey Shibaev +16 more
wiley +1 more source
Lamb Wave Directional Sensing with Piezoelectric Fiber Rosette in Structure Health Monitoring
Shock and Vibration, 2019 Directional piezoelectric sensors can detect the Lamb wave propagation direction to locate damage in structural health monitoring (SHM). The directivity of the round piezoelectric fiber is exploited with a 0°/45°/90° rosette configuration to acquire ...
Songlai Wang +4 more
doaj +1 more source
A Fiber Optical Sensor For Non-Contact Vibration Measurements [PDF]
, 2009 This paper describes an intensity based optical sensor for the evaluation of accelerations from non-contact displacement measurements. Plastic optical fibers are used to collect the reflected light from several points on the vibrating surface, allowing ...
Casalicchio, Maria Luisa +2 more
core
Advanced Materials, EarlyView.We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena +6 more
wiley +1 more source
Silk Fibroin-Based Piezoelectric Sensor with Carbon Nanofibers for Wearable Health Monitoring Applications. [PDF]
Sensors (Basel), 2023 Rathinasamy SK, Maheswar R, Lorincz J.
europepmc +1 more source
Effects of temperature on the impedance of piezoelectric actuators used for SHM [PDF]
, 2014 — FEM modeling of piezoelectric patches used as actuators and sensors for SHM applications. — Test/analysis correlation of temperature effects in piezoelectric materials and glue — Numerical methods associated with the prediction of electric transfers ...
BALMES, Etienne +3 more
core +6 more sources
Advanced Materials, EarlyView.A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho +3 more
wiley +1 more source
A Drifter-Based Self-Powered Piezoelectric Sensor for Ocean Wave Measurements. [PDF]
Sensors (Basel), 2022 Kargar SM, Hao G.
europepmc +1 more source