Novel Distributed Fiber Temperature and Strain Sensor Using Coherent Radio-Frequency Detection of Spontaneous Brillouin Scattering

2007 ◽  
Author(s):  
Jihong Geng ◽  
Sean Staines ◽  
Mike Blake ◽  
Shibin Jiang
Keyword(s):  
Radio Frequency ◽  
Brillouin Scattering ◽  
Strain Sensor ◽  
Frequency Detection

Distributed fiber temperature and strain sensor using coherent radio-frequency detection of spontaneous Brillouin scattering

2007 ◽  
Vol 46 (23) ◽  
pp. 5928 ◽  
Author(s):  
Jihong Geng ◽  
Sean Staines ◽  
Mike Blake ◽  
Shibin Jiang
Keyword(s):  
Radio Frequency ◽  
Brillouin Scattering ◽  
Strain Sensor ◽  
Frequency Detection

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.

Enhanced Broad-band Radio Frequency Detection in Nanoscale Magnetic Tunnel Junction by Interface Engineering

2019 ◽  
Vol 11 (32) ◽  
pp. 29382-29387 ◽  
Author(s):  
Like Zhang ◽  
Bin Fang ◽  
Jialin Cai ◽  
Weican Wu ◽  
Baoshun Zhang ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Tunnel Junction ◽  
Broad Band ◽  
Magnetic Tunnel Junction ◽  
Interface Engineering ◽  
Frequency Detection

The Role of Radio Frequency Detection System Embedded Surgical Sponges in Preventing Retained Surgical Sponges

2016 ◽  
Vol 264 (4) ◽  
pp. 599-604 ◽  
Author(s):  
Kenji Inaba ◽  
Obi Okoye ◽  
Hande Aksoy ◽  
Dimitra Skiada ◽  
Glenn Ault ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Detection System ◽  
Frequency Detection ◽  
Retained Surgical Sponges
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