Commercial boiler test for distributed temperature sensor based on wavelength-multiplexed sapphire fiber bragg gratings

2019 ◽  
Author(s):  
Shuo Yang ◽  
Daniel Homa ◽  
Hanna Heyl ◽  
Logan Theis ◽  
John Beach ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Distributed Temperature Sensor ◽  
Sapphire Fiber

Advanced fabrication and calibration of high-temperature sensor elements based on sapphire fiber Bragg gratings

2014 ◽  
Author(s):  
Tino Elsmann ◽  
Tobias Habisreuther ◽  
Manfred Rothhardt ◽  
Reinhardt Willsch ◽  
Hartmut Bartelt
Keyword(s):  
High Temperature ◽  
Temperature Sensor ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
High Temperature Sensor ◽  
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

scholarly journals Optic fiber temperature sensor based on cascading fiber Bragg gratings

AIP Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 015206
Author(s):  
Jin Xu ◽  
Rongping Wang ◽  
Adnane Cabani
Keyword(s):  
Temperature Sensor ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Optic Fiber

High-resolution neural temperature sensor using fiber Bragg gratings

1999 ◽  
Vol 35 (11) ◽  
pp. 1590-1596 ◽  
Author(s):  
Shyh-Lin Tsao ◽  
Jingshown Wu ◽  
Bih-Chyun Yeh
Keyword(s):  
High Resolution ◽  
Temperature Sensor ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings

Pressure and Temperature Sensor Based on Graphene Diaphragm and Fiber Bragg Gratings

2018 ◽  
Vol 30 (5) ◽  
pp. 431-434 ◽  
Author(s):  
Nannan Dong ◽  
Sumei Wang ◽  
Lan Jiang ◽  
Yi Jiang ◽  
Peng Wang ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings

scholarly journals Design and Analysis of a Combined Strain–Vibration–Temperature Sensor with Two Fiber Bragg Gratings and a Trapezoidal Beam

Sensors ◽  
2019 ◽  
Vol 19 (16) ◽  
pp. 3571 ◽  
Author(s):  
Kun Yao ◽  
Qijing Lin ◽  
Zhuangde Jiang ◽  
Na Zhao ◽  
Gang-Ding Peng ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Strain Measurement ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
The Other ◽  
Vibration Measurement ◽  
Main Beam ◽  
Nonlinearity Error ◽  
Individual Strain ◽  
Combined Sensor

A combined sensor to simultaneously measure strain, vibration, and temperature has been developed. The sensor is composed of two Fiber Bragg gratings (FBGs) and a vibration gainer. One FBG is used to measure strain, while the other measures vibration and temperature. The gainer has a mass block which is used to increase its sensitivity to vibration. The main beam of the vibration gainer was designed as a trapezoid in order to reduce the strain gradient while sensing vibration. In addition, an interrogation method was used to eliminate interactions between measured parameters. Experiments were carried out to analyze the performance of the proposed sensor. For individual strain measurement in the range of 0–152 με, the sensitivity and nonlinearity error were 1.878 pm/με and 2.43% Full Scale (F.S.), respectively. For individual temperature measurement in the range of 50–210 °C, the sensitivity and nonlinearity error were 29.324 pm/°C and 1.88% F.S., respectively. The proposed sensor also demonstrated a sensitivity of 0.769 pm/m·s−2 and nonlinearity error of 1.83% F.S. for vibration measurement in the range of 10–55 m/s2. Finally, simultaneously measuring strain, temperature, and vibration resulted in nonlinearity errors of 4.23% F.S., 1.89% F.S., and 2.23% F.S., respectively.

Probing of sapphire fiber Bragg gratings using intrinsic black-body radiation

2011 ◽  
Author(s):  
Dan Grobnic ◽  
Stephen J. Mihailov ◽  
Christopher W. Smelser
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Black Body ◽  
Black Body Radiation ◽  
Sapphire Fiber
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