scholarly journals Sapphire-fiber-based distributed high-temperature sensing system

2016 ◽  
Vol 41 (18) ◽  
pp. 4405 ◽  
Author(s):  
Bo Liu ◽  
Zhihao Yu ◽  
Cary Hill ◽  
Yujie Cheng ◽  
Daniel Homa ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Sensing ◽  
Sensing System ◽  
Sapphire Fiber

scholarly journals 1.2.4 - First-order sapphire fiber Bragg gratings for high temperature sensing

2016 ◽  
Author(s):  
T. Elsmann ◽  
T. Habisreuther ◽  
A. Graf ◽  
M. Rothhardt ◽  
M. Schmidt ◽  
...  
Keyword(s):  
High Temperature ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Temperature Sensing ◽  
First Order ◽  
Sapphire Fiber

Fiber-optic high-temperature sensing system and its field application

2007 ◽  
Author(s):  
Yizheng Zhu ◽  
Fabin Shen ◽  
Zhengyu Huang ◽  
Kristie L. Cooper ◽  
Gary R. Pickrell ◽  
...  
Keyword(s):  
High Temperature ◽  
Fiber Optic ◽  
Field Application ◽  
Temperature Sensing ◽  
Sensing System

Multiplexed high temperature sensing with sapphire fiber air gap-based extrinsic Fabry–Perot interferometers

2010 ◽  
Vol 35 (5) ◽  
pp. 619 ◽  
Author(s):  
Jiajun Wang ◽  
Bo Dong ◽  
Evan Lally ◽  
Jianmin Gong ◽  
Ming Han ◽  
...  
Keyword(s):  
High Temperature ◽  
Air Gap ◽  
Temperature Sensing ◽  
Fabry Perot ◽  
Sapphire Fiber

scholarly journals High Temperature High Sensitivity Multipoint Sensing System Based on Three Cascade Mach–Zehnder Interferometers

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2688 ◽  
Author(s):  
Na Zhao ◽  
Qijing Lin ◽  
Zhuangde Jiang ◽  
Kun Yao ◽  
Bian Tian ◽  
...  
Keyword(s):  
High Temperature ◽  
Fourier Transformation ◽  
Room Temperature ◽  
Temperature Response ◽  
High Sensitivity ◽  
Temperature Sensing ◽  
Fast Fourier Transformation ◽  
Sensitivity Matrix ◽  
Sensing System ◽  
Inverse Fourier Transformation

A temperature multipoint sensing system based on three cascade Mach–Zehnder interferometers (MZIs) is introduced. The MZIs with different lengths are fabricated based on waist-enlarged fiber bitapers. The fast Fourier transformation is applied to the overlapping transmission spectrum and the corresponding interference spectra can be obtained via the cascaded frequency spectrum based on the inverse Fourier transformation. By analyzing the drift of interference spectra, the temperature response sensitivities of 0.063 nm/°C, 0.071 nm/°C, and 0.059 nm/°C in different furnaces can be detected from room temperature up to 1000 °C, and the temperature response at different regions can be measured through the sensitivity matrix equation. These results demonstrate feasibility of multipoint measurement, which also support that the temperature sensing system provides new solution to the MZI cascade problem.

High temperature sensing using higher-order-mode rejected sapphire fiber gratings

2007 ◽  
Vol 16 (4) ◽  
pp. 204-210 ◽  
Author(s):  
C. Zhan ◽  
J. H. Kim ◽  
S. Yin ◽  
P. Ruffin ◽  
C. Luo
Keyword(s):  
High Temperature ◽  
Higher Order ◽  
Temperature Sensing ◽  
Order Mode ◽  
Fiber Gratings ◽  
Higher Order Mode ◽  
Sapphire Fiber

scholarly journals Microwave Interrogated Sapphire Fiber Michelson Interferometer for High Temperature Sensing

2015 ◽  
Vol 27 (13) ◽  
pp. 1398-1401 ◽  
Author(s):  
Jie Huang ◽  
Xinwei Lan ◽  
Yang Song ◽  
Yanjun Li ◽  
Liwei Hua ◽  
...  
Keyword(s):  
High Temperature ◽  
Michelson Interferometer ◽  
Temperature Sensing ◽  
Sapphire Fiber

scholarly journals Design and Implementation of Distributed Ultra-High Temperature Sensing System With a Single Crystal Fiber

2018 ◽  
Vol 36 (23) ◽  
pp. 5511-5520 ◽  
Author(s):  
Bo Liu ◽  
Michael P. Buric ◽  
Benjamin T. Chorpening ◽  
Zhihao Yu ◽  
Daniel S. Homa ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Temperature Sensing ◽  
Crystal Fiber ◽  
Design And Implementation ◽  
Sensing System ◽  
Ultra High Temperature

A Fully Functional Extreme Environment SiC Wireless Temperature Sensing System

2011 ◽  
Vol 2011 (HITEN) ◽  
pp. 000120-000127
Author(s):  
Jie Yang ◽  
John R Fraley ◽  
Bryon Western ◽  
Roberto M. Schupbach
Keyword(s):  
High Temperature ◽  
Gas Turbine ◽  
Turbine Blades ◽  
Extreme Temperature ◽  
Extreme Environment ◽  
Gas Turbine Engine ◽  
Temperature Sensing ◽  
Maintenance Cost ◽  
Turbine Engine ◽  
Sensing System

Researchers at Arkansas Power Electronics International, Inc. (APEI, Inc.) have designed and developed a patent pending Silicon Carbide (SiC) wireless temperature sensing system that is capable of operation under extreme temperature and mechanical loads, such as inside a gas turbine engine. High operating temperatures and centrifugal forces in the tens of thousands within the region of the gas turbine engine where the circuits are to be located, exceed the capability of Silicon-on-Insulator (SOI) integrated circuits. The system is designed to be non-intrusively embedded within the turbine engine to provide real-time health monitoring of critical turbine engine components. The SiC based wireless temperature sensing system is designed in conjunction with a high temperature thermocouple to acquire the temperature information on turbine blades or other components inside turbine engine. It has been verified through high temperature laboratory testing, up to the desired temperature level. The combination of this extreme temperature wireless telemetry technology and integrated harsh environment sensors will allow for specific in-situ maintenance of power generation and aircraft turbines during field operation. This combination can also be applied to many other industries that require extreme environment monitoring and maintenance, one example would be nuclear reactors. This form of preventative maintenance may help to reduce maintenance cost, increase operational safety, and prevent possible catastrophic failures.

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