Multiplexed identical broad-band-chirped grating interrogation system for large-strain sensing applications

1997 ◽  
Vol 9 (12) ◽  
pp. 1616-1618 ◽  
Author(s):  
R.W. Fallon ◽  
L. Zhang ◽  
I. Bennion
Keyword(s):  
Large Strain ◽  
Broad Band ◽  
Strain Sensing ◽  
Sensing Applications ◽  
Chirped Grating

Cyclic piezoresistive effect in poly(dimethylsiloxane)/carbon nanofiber composites for large strain Sensing applications

2019 ◽  
Vol 30 (7) ◽  
pp. 1010-1017
Author(s):  
M Lu ◽  
MH Chen ◽  
ZX Bu ◽  
LS Wang ◽  
L Sun
Keyword(s):  
Carbon Nanomaterials ◽  
Carbon Nanofiber ◽  
Large Strain ◽  
Temperature Stability ◽  
Strain Sensors ◽  
Strain Sensing ◽  
One Dimensional ◽  
Sensing Applications ◽  
Different Temperatures ◽  
Carbon Nanofiller

Adding conductive one-dimensional carbon nanomaterials to poly(dimethysiloxane) can form bio-compatible composites with significant electromechanical (piezoresistive) response. This effect can be effectively tuned by controlling the carbon nanofiller size, concentration, and distribution. However, to be applied as strain sensors, the composite material has to meet mechanical, sensitivity, temperature stability, and reliability requirements. Here we report on the study of cyclic electromechanical behaviors of poly(dimethysiloxane)/carbon nanofiber composites under different temperatures. Through mechanical training, reproducible and sensitive piezoresistive response suitable for large strain sensing can be obtained.

Optimization of nickel nanocomposite for large strain sensing applications

2011 ◽  
Vol 166 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Oliver K. Johnson ◽  
George C. Kaschner ◽  
Thomas A. Mason ◽  
David T. Fullwood ◽  
George Hansen
Keyword(s):  
Large Strain ◽  
Strain Sensing ◽  
Sensing Applications

scholarly journals Strain Sensor via Wood Anomalies in 2D Dielectric Array

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1022
Author(s):  
Rashid G. Bikbaev ◽  
Ivan V. Timofeev ◽  
Vasiliy F. Shabanov
Keyword(s):  
Higher Plants ◽  
Numerical Study ◽  
Reciprocal Lattice ◽  
Strain Sensing ◽  
Photonic Materials ◽  
Sensing Applications ◽  
Wide Range ◽  
Sensor Structure ◽  
Optical Behavior ◽  
Chlorophyll Absorption

Optical sensing is one of many promising applications for all-dielectric photonic materials. Herein, we present an analytical and numerical study on the strain-responsive spectral properties of a bioinspired sensor. The sensor structure contains a two-dimensional periodic array of dielectric nanodisks to mimic the optical behavior of grana lamellae inside chloroplasts. To accumulate a noticeable response, we exploit the collective optical mode in grana ensemble. In higher plants, such a mode appears as Wood’s anomaly near the chlorophyll absorption line to control the photosynthesis rate. The resonance is shown persistent against moderate biological disorder and deformation. Under the stretching or compression of a symmetric structure, the mode splits into a couple of polarized modes. The frequency difference is accurately detected. It depends on the stretch coefficient almost linearly providing easy calibration of the strain-sensing device. The sensitivity of the considered structure remains at 5 nm/% in a wide range of strain. The influence of the stretching coefficient on the length of the reciprocal lattice vectors, as well as on the angle between them, is taken into account. This adaptive phenomenon is suggested for sensing applications in biomimetic optical nanomaterials.

scholarly journals A Review: Carbon Nanotube-Based Piezoresistive Strain Sensors

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Waris Obitayo ◽  
Tao Liu
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Composite Films ◽  
Strain Sensors ◽  
Voltage Response ◽  
Strain Sensing ◽  
Multiwalled Carbon ◽  
Sensing Applications ◽  
Mechanical Deformations ◽  
Electrical Resistivities

The use of carbon nanotubes for piezoresistive strain sensors has acquired significant attention due to its unique electromechanical properties. In this comprehensive review paper, we discussed some important aspects of carbon nanotubes for strain sensing at both the nanoscale and macroscale. Carbon nanotubes undergo changes in their band structures when subjected to mechanical deformations. This phenomenon makes them applicable for strain sensing applications. This paper signifies the type of carbon nanotubes best suitable for piezoresistive strain sensors. The electrical resistivities of carbon nanotube thin film increase linearly with strain, making it an ideal material for a piezoresistive strain sensor. Carbon nanotube composite films, which are usually fabricated by mixing small amounts of single-walled or multiwalled carbon nanotubes with selected polymers, have shown promising characteristics of piezoresistive strain sensors. Studies also show that carbon nanotubes display a stable and predictable voltage response as a function of temperature.

Stretchable screen-printed metasurfaces for wireless strain sensing applications

2020 ◽  
Vol 41 ◽  
pp. 100998
Author(s):  
Youngin Yoo ◽  
Heijun Jeong ◽  
Daecheon Lim ◽  
Sungjoon Lim
Keyword(s):  
Strain Sensing ◽  
Sensing Applications ◽  
Screen Printed
Sign in / Sign up

Export Citation Format

Share Document