A novel fluidic strain sensor for large strain measurement

2008 ◽  
Vol 147 (2) ◽  
pp. 401-408 ◽  
Author(s):  
Yin-Nee Cheung ◽  
Yun Zhu ◽  
Ching-Hsiang Cheng ◽  
Chen Chao ◽  
Wallace Woon-Fong Leung
Keyword(s):  
Strain Measurement ◽  
Large Strain ◽  
Strain Sensor

The Investigation of a Novel Large-Strain Sensor Based on a Dual Capacitive Structure

2014 ◽  
Vol 530-531 ◽  
pp. 66-70
Author(s):  
Cheng Li Duan ◽  
Ya Dong Jiang ◽  
Hui Ling Tai ◽  
Li Jie Chen ◽  
Qi Dong Li ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Large Strain ◽  
Strain Sensor ◽  
The Other ◽  
Excellent Performance ◽  
Relative Shift ◽  
Measurable Transformation ◽  
Voltage Signal ◽  
Capacitor Structure ◽  
Overlap Area

In this paper, a novel large-strain sensor based on a dual planar capacitive structure has been developed. It has the capacity of large-strain measurement up to 200,000 με (0.2 ε). The change in strain causes a measurable transformation in the capacitance of the sensor by relative shift of the overlap area between two capacitive plates, one fixed (i.e. fixed plate) and the other one movable (i.e. movable plate), and is thus converted into a voltage signal by a read-out circuit module. The dual capacitor structure was designed for increasing the initial capacitance and improving the resolution of sensors compared with a single capacitor structure. The experimental results showed that the sensor had a linearity of 2.29% full scale (FS), a hysteresis error of 1.146%FS, repeatability of 0.226%FS and a resolution of 0.5%FS, suggesting excellent performance of the sensor.

Three Optical Procedures for Local Large-Strain Measurement

Strain ◽  
2001 ◽  
Vol 37 (3) ◽  
pp. 89-98 ◽  
Author(s):  
R. Rotinat ◽  
R. Tié ◽  
V. Valle ◽  
J.-C. Dupré
Keyword(s):  
Strain Measurement ◽  
Large Strain

Distributed strain sensing for structural monitoring applications

2000 ◽  
Vol 27 (5) ◽  
pp. 873-879 ◽  
Author(s):  
Michael DeMerchant ◽  
Anthony Brown ◽  
Jeff Smith ◽  
Xiaoyi Bao ◽  
Theodore Bremner
Keyword(s):  
Strain Measurement ◽  
Measurement Accuracy ◽  
Brillouin Scattering ◽  
Strain Sensor ◽  
Structural Monitoring ◽  
Strain Sensing ◽  
Fibre Optics ◽  
Laboratory Test Results ◽  
The University ◽  
Distributed Strain

Strain sensors are a valuable tool for assessing the health of structures. The University of New Brunswick, in conjunction with ISIS Canada, is developing a distributed fibre optic strain sensor based on Brillouin scattering. This sensor can provide a virtually unlimited number of measurement points using a single optical fibre. A description of the operating principles of the system is given, along with a summary of laboratory test results. Strain measurement accuracy as high as approximately ±11 µε has been demonstrated at 1 m spatial resolution. Spatial resolutions as short as 100 mm can be used, although with decreased strain measurement accuracy. Future development of the technology will include an enhancement allowing both strain and temperature to be measured simultaneously.Key words: strain sensor, fibre optics, distributed sensing, structural monitoring, Brillouin scattering.

A novel intrinsically strain sensor for large strain detection

2021 ◽  
Vol 332 ◽  
pp. 113081
Author(s):  
Jiang Liu ◽  
Biao Lei ◽  
Weitao Jiang ◽  
Jie Han ◽  
Hongjian Zhang ◽  
...  
Keyword(s):  
Large Strain ◽  
Strain Sensor ◽  
Strain Detection

Calibration of a single-mode polymer optical fiber large-strain sensor

2009 ◽  
Vol 20 (3) ◽  
pp. 034016 ◽  
Author(s):  
Sharon Kiesel ◽  
Kara Peters ◽  
Tasnim Hassan ◽  
Mervyn Kowalsky
Keyword(s):  
Optical Fiber ◽  
Large Strain ◽  
Strain Sensor ◽  
Single Mode ◽  
Polymer Optical Fiber

A novel sensate ‘string’ for large-strain measurement at high temperature

2006 ◽  
Vol 17 (2) ◽  
pp. 450-458 ◽  
Author(s):  
Hui Zhang ◽  
Xiaoming Tao ◽  
Tongxi Yu ◽  
Shanyuan Wang ◽  
Xiaoyin Cheng
Keyword(s):  
High Temperature ◽  
Strain Measurement ◽  
Large Strain
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