OS17-2-1 Large-strain sensing ability of carbon-nanofiller/flexible-epoxy composites

2007 ◽  
Vol 2007.6 (0) ◽  
pp. _OS17-2-1--_OS17-2-1-
Author(s):  
Tetsuo Yasuoka ◽  
Yoshinobu Shimamura ◽  
Akira Todoroki
Keyword(s):  
Large Strain ◽  
Epoxy Composites ◽  
Strain Sensing ◽  
Carbon Nanofiller

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.

Strain sensing behavior of epoxy composites with nano/micro hybrid of carbon materials for asphalt road in situ strain monitoring

2021 ◽  
pp. 610-613
Author(s):  
Ming Liang ◽  
Zhengmei Qiu ◽  
Linping Su ◽  
Yu Rong ◽  
Jie Song ◽  
...  
Keyword(s):  
Carbon Materials ◽  
Epoxy Composites ◽  
Strain Sensing ◽  
Strain Monitoring ◽  
Asphalt Road

In situ reduction of gold nanoparticles in PDMS matrices and applications for large strain sensing

2011 ◽  
Vol 8 (5) ◽  
pp. 471-486 ◽  
Author(s):  
Donghyeon Ryu ◽  
Kenneth J. Loh ◽  
Robert Ireland ◽  
Mohammad Karimzada ◽  
Frank Yaghmaie ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Large Strain ◽  
In Situ Reduction ◽  
Strain Sensing

Textile strain sensors: a review of the fabrication technologies, performance evaluation and applications

2019 ◽  
Vol 6 (2) ◽  
pp. 219-249 ◽  
Author(s):  
Shayan Seyedin ◽  
Peng Zhang ◽  
Maryam Naebe ◽  
Si Qin ◽  
Jun Chen ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Large Strain ◽  
Strain Sensors ◽  
Material Structure ◽  
Strain Sensing ◽  
Sensing Range

Strain sensors that are made of textiles offer wearability and large strain sensing range. Recent exciting developments in material, structure, fabrication, performance, and application of textile strain sensors are evaluated and guidelines are provided to overcome the current challenges.

Simultaneous global and local strain sensing in SWCNT–epoxy composites by Raman and impedance spectroscopy

2011 ◽  
Vol 71 (2) ◽  
pp. 160-166 ◽  
Author(s):  
A. de la Vega ◽  
I.A. Kinloch ◽  
R.J. Young ◽  
W. Bauhofer ◽  
K. Schulte
Keyword(s):  
Impedance Spectroscopy ◽  
Local Strain ◽  
Epoxy Composites ◽  
Strain Sensing ◽  
Global And Local

Fabrication of Conductive Polypyrrole/Polyurethane Composite Fibers for Large Strain Sensing

2012 ◽  
Vol 482-484 ◽  
pp. 1142-1145 ◽  
Author(s):  
Xiao Lin Zhang ◽  
Zong Yi Qin ◽  
Long Chen
Keyword(s):  
Large Strain ◽  
Fiber Surface ◽  
Smart Device ◽  
Strain Sensing ◽  
Composite Fibers ◽  
Resistance Response ◽  
Polyurethane Composite ◽  
Sensing Material ◽  
Device Applications ◽  
Conductive Polypyrrole

A kind of flexible, conductive polypyrrole–coated polyurethane (PPy/PU) fibers was fabricated by controlled chemical polymerization and its strain sensing ability was evaluated. The as-prepared fibers possessed high conductivity with a maximum value of 10-1 (Ω•cm)-1, and highly elastic nature of the PU matrix. It is further found that dense PPy layer was covered uniformly onto PU fiber surface, and an interpenetrating interface and strong hydrogen bonding interaction could be observed, which greatly benefited their high structural stability. More importantly, the composite fibers exhibited a wide strain deformation range up to 250% and high strain sensitivity of over 20 (at the large strain of 50%), and good reversible resistance response on cyclic force loading, which would open a high opportunity for fabricating strain sensing material in large volume for future smart device applications.

scholarly journals Multipoint Fiber Loop Ringdown Sensors for Large Strain Measurement Using Frequency-Shifted Interferometry

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 2907
Author(s):  
Chunfu Cheng ◽  
Zehao Chen ◽  
Yiwen Ou ◽  
Jiaxuan Chen
Keyword(s):  
Continuous Wave ◽  
Large Strain ◽  
Low Cost ◽  
Strain Sensor ◽  
Strain Sensing ◽  
Measuring Range ◽  
Sensing System ◽  
Different Strains ◽  
The Cost ◽  
Fiber Loop

A novel multipoint fiber loop ringdown (FLRD) strain sensing system using frequency-shifted interferometry (FSI) is proposed and experimentally validated. Compared to conventional multipoint FLRD techniques, this scheme measures the decay rate of the continuous wave (CW) light in the space domain and thus greatly reduces the cost without the requirement of expensive devices. A serial dual-point strain sensing system was experimentally constructed and a biconical tapered multimode fiber (MMF) as the sensor head was used for obtaining the large measuring range. By applying different strains on the sensor heads through translation stages, a linear response between strain and additional loss induced by strain sensor was obtained, and the static strain sensitivities of 0.13676 dB/mε and 0.19665 dB/mε were achieved, corresponding to the detection limit of 0.0123 dB and 0.0360 dB, respectively. Moreover, a large measuring range of approximately 6 mε was achieved for both strain sensors. The experimental results indicate that our proposed method offers a promising multipoint strain sensor which has the advantages of low cost, a simple sensing structure and a large measuring range.

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