Sensitivity enhanced strain sensor based on two-arm Vernier Effect

2021 ◽  
pp. 1-1
Author(s):  
Ji Liu ◽  
Pengyu Nan ◽  
Qin Tian ◽  
Xiaokun Sun ◽  
Hangting Yang ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Enhanced Strain ◽  
Vernier Effect

High-sensitivity strain sensor implemented by hybrid cascaded interferometers and the Vernier-effect

2019 ◽  
Vol 119 ◽  
pp. 105591 ◽  
Author(s):  
Ling Liu ◽  
Tigang Ning ◽  
Jingjing Zheng ◽  
Li Pei ◽  
Jing Li ◽  
...  
Keyword(s):  
Strain Sensor ◽  
High Sensitivity ◽  
Vernier Effect

Highly sensitive printed crack-enhanced strain sensor as dual-directional bending detector

2020 ◽  
Vol 29 (4) ◽  
pp. 045023 ◽  
Author(s):  
Yao Xiao ◽  
Shuwen Jiang ◽  
Yanrong Li ◽  
Wanli Zhang
Keyword(s):  
Strain Sensor ◽  
Highly Sensitive ◽  
Enhanced Strain

Highly sensitive temperature and strain sensor based on fiber Sagnac interferometer with Vernier effect

2021 ◽  
pp. 127543
Author(s):  
Wujun Zhang ◽  
Xuqiang Wu ◽  
Cheng Zuo ◽  
Lei Gui ◽  
Jinhui Shi ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Sagnac Interferometer ◽  
Highly Sensitive ◽  
Vernier Effect

scholarly journals Study of a Long-Gauge FBG Strain Sensor with Enhanced Sensitivity and Its Application in Structural Monitoring

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3492
Author(s):  
Jing Yang ◽  
Peng Hou ◽  
Caiqian Yang ◽  
Ning Yang
Keyword(s):  
Strain Sensor ◽  
Maximum Error ◽  
Sensitivity Coefficient ◽  
Experimental Results ◽  
Rc Beam ◽  
Strain Sensitivity ◽  
Shear Strengthening ◽  
Enhanced Sensitivity ◽  
Enhanced Strain ◽  
The Stability

A long-gauge fiber Bragg grating (FBG) strain sensor with enhanced strain sensitivity is proposed, which is encapsulated with two T-shaped metal blocks. Its fabrication method is described briefly, and the strain sensitivity can be flexibly adjusted through changing its packaging method. A series of experiments are carried out to study the packaging and its sensing properties. The experimental results show that the strain and temperature sensitivity coefficient of the sensor are three times larger than the common FBG sensors. The linearity coefficients of the FBG sensor are larger than 0.999, and the relative error of the repeatability of all sensor samples is less than 1%. Through the stability test on the actual bridge, it is revealed that the long-term stability of the sensor is excellent, and the maximum error is less than 1.5%. In addition, the proposed FBG strain sensors are used to conduct a shear strengthening experiment on a reinforced concrete (RC) beam to verify its working performance. The experimental results show that the strain change and crack propagation of the RC beam are well monitored by the sensors during the loading process.

High Enhancement Strain Sensor Based on Vernier Effect Using 2-Fiber Loop Mirrors

2020 ◽  
Vol 32 (18) ◽  
pp. 1139-1142 ◽  
Author(s):  
Paulo Manuel Ribeiro Robalinho ◽  
Andre D. Gomes ◽  
Orlando Frazao
Keyword(s):  
Strain Sensor ◽  
Vernier Effect ◽  
Loop Mirrors ◽  
Fiber Loop

Design of the Sensitivity Enhanced Strain Sensor Based on Fine Transmission Spectrum of FBG

2014 ◽  
Vol 41 (8) ◽  
pp. 0805002 ◽  
Author(s):  
苏娟 Su Juan ◽  
董小鹏 Dong Xiaopeng ◽  
石志东 Shi Zhidong
Keyword(s):  
Transmission Spectrum ◽  
Strain Sensor ◽  
Enhanced Strain

Ultrasensitive Fabry–Perot Strain Sensor Based on Vernier Effect and Tapered FBG-in-Hollow Silica Tube

2020 ◽  
pp. 1-1
Author(s):  
Xin-Lei Zhao ◽  
Yan-Xin Zhang ◽  
Wei-Gang Zhang ◽  
Zhe Li ◽  
Yang Yue ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Silica Tube ◽  
Hollow Silica ◽  
Fabry Perot ◽  
Vernier Effect
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