Fibre Bragg Grating (FBG) Sensor for Socket Pressure Measurement

2021 ◽  
pp. 1-28
Author(s):  
N A Abu Osman ◽  
E A Al-Fakih ◽  
F R Mahamd Adikan
Keyword(s):  
Pressure Measurement ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Fbg Sensor

scholarly journals Preliminary View of a Smart Technique for Materials Testing in the Laboratory using FBG Sensor

2018 ◽  
Vol 203 ◽  
pp. 04001
Author(s):  
Isah W. Balarabe ◽  
Mohamad Hisham ◽  
Ahmad R. Niraku ◽  
Indra S.H. Harahap
Keyword(s):  
High Resolution ◽  
Bragg Grating ◽  
Materials Testing ◽  
Fibre Bragg Grating ◽  
Fbg Sensor ◽  
Perfect Correlation ◽  
Fbg Sensors

Simple experiments for calibrating Fibre Bragg Grating (FBG) in order to measure strain and temperature have been successfully demonstrated in this study. This will allow convenient use of FBG sensor in the laboratory for measuring quantities. Linear curve fittings were employed for both the strain and temperature, and R2 values are determined respectively. The result showed a perfect correlation between FBG, strain and temperature. The approach can be employed with ease, simplicity in an inexpensive manner, in order harness the advantages offered by FBG sensors such as accuracy, precision, speed and high resolution.

scholarly journals Flat-cladding fibre bragg grating sensors for large strain fatigue tests

2021 ◽  
Author(s):  
Cheng Li
Keyword(s):  
Sensor Array ◽  
Large Strain ◽  
Hysteresis Loops ◽  
Cyclic Fatigue ◽  
Fatigue Tests ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Friction Stir ◽  
Fbg Sensor ◽  
Large Strain Amplitude

In the design of mechanical components, the fatigue of material are of particular importance as ~80% of metal failures in practice arise from fatigue. The fatigue life is generally determined from low cyclic fatigue tests at large strain. This thesis developed a novel flat-cladding Fiber Bragg Grating sensor array applied in the characterization of LCF properties of three different specimens. With a new bonding process, large strain amplitude measurement of up to [plus or minus] 8000 μ [epsilon] was achieved in the Aluminum base metal and asymmetric hysteresis loops at high strain amplitudes due to twinning in compression and subsequent detwinning in tension was observed in Magnesium alloy. Moreover, an abnormal softening and hardening variation in different zone of friction stir welded Aluminum alloy was discovered throught the FBG sensor distribution. The validity shows that the FBG sensor a vital tool in the LCF tests at large strain amplitudes. Furthermore, due to its small size, the multiplexed FBG sensor array could also be applied to the measurements of strain distribution.

Fibre Bragg grating (FBG) sensor system for highly flexible single-link robots

2009 ◽  
Vol 150 (1) ◽  
pp. 24-39 ◽  
Author(s):  
Ismael Payo ◽  
Vicente Feliu ◽  
Osvaldo Daniel Cortázar
Keyword(s):  
Sensor System ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Fbg Sensor ◽  
Single Link

scholarly journals Flat-cladding fibre bragg grating sensors for large strain fatigue tests

2021 ◽  
Author(s):  
Cheng Li
Keyword(s):  
Sensor Array ◽  
Large Strain ◽  
Hysteresis Loops ◽  
Cyclic Fatigue ◽  
Fatigue Tests ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Friction Stir ◽  
Fbg Sensor ◽  
Large Strain Amplitude

In the design of mechanical components, the fatigue of material are of particular importance as ~80% of metal failures in practice arise from fatigue. The fatigue life is generally determined from low cyclic fatigue tests at large strain. This thesis developed a novel flat-cladding Fiber Bragg Grating sensor array applied in the characterization of LCF properties of three different specimens. With a new bonding process, large strain amplitude measurement of up to [plus or minus] 8000 μ [epsilon] was achieved in the Aluminum base metal and asymmetric hysteresis loops at high strain amplitudes due to twinning in compression and subsequent detwinning in tension was observed in Magnesium alloy. Moreover, an abnormal softening and hardening variation in different zone of friction stir welded Aluminum alloy was discovered throught the FBG sensor distribution. The validity shows that the FBG sensor a vital tool in the LCF tests at large strain amplitudes. Furthermore, due to its small size, the multiplexed FBG sensor array could also be applied to the measurements of strain distribution.

scholarly journals High-Resolution Fibre Bragg Grating (FBG) Pressure Transducer for Low-Pressure Detection

2019 ◽  
Vol 16 (2) ◽  
pp. 6783-6795
Author(s):  
Z. M. Hafizi ◽  
E. Vorathin ◽  
A. M. Aizuddin ◽  
K. S. Lim
Keyword(s):  
High Resolution ◽  
Temperature Effect ◽  
Pressure Sensor ◽  
Pressure Measurement ◽  
Temperature Compensation ◽  
Pressure Transducer ◽  
Low Pressure ◽  
Bragg Grating ◽  
Harsh Environment ◽  
Fibre Bragg Grating

Fibre Bragg grating (FBG) pressure sensor has shown great potential in replacing the conventional electrical pressure sensor due to its adaptability to the harsh environment. However, increasing its resolution for low-pressure measurement is still a challenge. In this work, the bonding of FBG to a rubber-based diaphragm pressure transducer was proposed. The proposed pressure transducer had enhanced the sensitivity to 117.7 pm/kPa across the range of 40 kPa, which corresponded to the pressure resolution of 0.008 kPa. Furthermore, the proposed pressure transducer possessed a reference FBG for temperature compensation, where the overall temperature effect was less than 1%.       

scholarly journals Development of Sandglass Shape FBG Sensor to Reduce Cross Sensitivity Effect

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Bo Zhang
Keyword(s):  
Temperature Measurement ◽  
Fiber Bragg Grating ◽  
Pressure Sensor ◽  
Pressure Measurement ◽  
Axial Strain ◽  
Bragg Grating ◽  
Cross Sensitivity ◽  
Fbg Sensor ◽  
Transverse Pressure ◽  
Fbg Sensors

Fiber Bragg grating (FBG) sensors have received considerable attention in applications of temperature, axial strain, and transverse pressure measurement. However, the cross-sensitivity of strain and temperature measurement is the key problem of FBG sensors. In this paper, a sandglass shape FBG is proposed to divide cross-sensitivity of temperature and transverse pressure. The principle and structure of sandglass FBG are introduced, and the experiment results show cross-sensitivity avoidable in the transverse pressure sensor.

Dual-fibre Bragg grating sensor for barometric pressure measurement

2003 ◽  
Vol 14 (11) ◽  
pp. 2015-2020 ◽  
Author(s):  
Robert R J Maier ◽  
James S Barton ◽  
Julian D C Jones ◽  
Scott McCulloch ◽  
Gary Burnell
Keyword(s):  
Pressure Measurement ◽  
Barometric Pressure ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Fibre Bragg Grating Sensor ◽  
Bragg Grating Sensor
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