Results 31 to 40 of about 2,151,809 (145)

Fibre segment interferometry using code-division multiplexed optical signal processing for strain sensing applications [PDF]

open access: yes, 2013
A novel optical signal processing scheme for multiplexing fibre segment interferometers is proposed. The continuous-wave, homodyne technique combines code-division multiplexing with single-sideband modulation.
Charrett, Thomas O. H.   +2 more
core   +1 more source

Superhydrophobic, biocompatible and durable nanofiber composite with an asymmetric structure for anisotropic strain sensing and body motion detection

open access: yes, 2022
Anisotropic strain sensors show multi-directional sensing that can be used to monitor complex human motions. Aligned electrically conductive nanofiber membranes have been candidates for anisotropic strain sensors.
Wu, Yinqiu   +8 more
core   +1 more source

Enhanced performance of a temperature-compensated submeter spatial resolution distributed strain sensor [PDF]

open access: yes, 2010
We demonstrate a scheme which allows for temperature-corrected distributed strain measurements with improved spatial and strain resolutions and reduced data collection time.
Newson, T.P.   +4 more
core   +1 more source

Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment

open access: yesPhotonic Sensors, 2022
A length-matched micro Fabry-Perot (FP) interferometer is proposed for strain measurement under irradiation environment. Theoretical simulation shows that a well length-matched FP sensor can achieve a very low drift of the cavity length and strain ...
Tingting Yang   +8 more
doaj   +1 more source

High-performance wearable flexible strain sensors based on an AgNWs/rGO/TPU electrospun nanofiber film for monitoring human activities

open access: yesNanotechnology Reviews, 2023
Wearable flexible strain sensors have attracted considerable attention in recent years, while it is still a significant challenge to fabricate wearable flexible strain sensors with high sensitivity and wide sensing range simultaneously.
Zhang Lu   +3 more
doaj   +1 more source

Simultaneous independent distributed strain and temperature measurements over 15km using spontaneous Brillouin scattering

open access: yes, 2000
Long range simultaneous distributed strain and temperature sensors have many applications for measurements in the power and oil industries and also for structural monitoring.
Newson, T.P., Kee, H.H., Lees, G.P.
core   +1 more source

Piezojunction effect in heterojunctions under external bias for ultrasensitive strain sensing [PDF]

open access: yes
This paper investigates for the first time the piezojunction effect in heterojunctions under external bias for ultrasensitive strain sensing. As a proof of concept, we used sensing devices made of 3C-SiC/Si heterostructure with vertically aligned ...
Nguyen, Nam-Trung   +5 more
core   +1 more source

Thermal dependence of the strain response of optical fibre Bragg gratings. [PDF]

open access: yes, 2004
The temperature dependence of the strain sensitivity of fibre Bragg gratings written into a number of different fibre types has been investigated. It was found that the strain response changed on average by 0.21 ± 0.03 fm µε-1 °C-1 over a range of ...
O'Dwyer, Martin   +8 more
core   +1 more source

Synthesis and Characterization of Multi-Walled Carbon Nanotube/Graphene Nanoplatelet Hybrid Film for Flexible Strain Sensors

open access: yesNanomaterials, 2018
Graphene nanoplatelet (GNP) and multi-walled carbon nanotube (MWCNT) hybrid films were prepared with the aid of surfactant Triton X-100 and sonication through a vacuum filtration process.
JianRen Huang   +3 more
doaj   +1 more source

Skin-Mounted RFID Sensing Tattoos for Assistive Technologies [PDF]

open access: yes, 2014
UHF RFID technology is presented that can facilitate new passive assistive technologies. Tongue control for human computer interfaces is first discussed where a tag is attached to the hard palate of the mouth and the tag turn-on power is observed to vary
Rumens, C.V.   +9 more
core   +1 more source

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