Test of FBG sensors for monitoring high pressure pipes [PDF]
, 2017 Fibre Bragg Grating (FBG) sensors are increasingly being used on a wide range of civil, industrial and aerospace structures. The sensors are created inside optical fibres (usually standard telecommunication fibres); the optical fibres technology allows ...
Ambastha +17 more
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Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement [PDF]
, 2013 We present a solid-state FBG array interrogator and multiplexer capable of determining absolute FBG wavelengths and of providing high-speed, high-resolution static and dynamic measurements.
Fusiek, Grzegorz +3 more
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Use of FBG sensors for SHM in aerospace structures [PDF]
, 2012 This paper details some significant findings on the use of the fiber Bragg grating (FBG) sensors for structural health monitoring (SHM) in aerospace fiber reinforced polymer (FRP) structures. A diminutive sensor provides a capability of imbedding inside
Epaarachchi, Jayantha +3 more
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Sensors, 2010 In conventional ultrasound detection in structures, a fiber Bragg grating (FBG) is glued on or embedded in the structure. However, application of strain to the structure can influence the sensitivity of the FBG toward ultrasound and can prevent its ...
Shinji Ogihara +2 more
doaj +1 more source
All-optical differential current detection technique for unit protection applications [PDF]
, 2013 In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz +3 more
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Design, Fabrication and Testing of a 3D Printed FBG Pressure Sensor
IEEE Access, 2019 In this paper, a fiber Bragg grating (FBG) pressure sensor was designed and fabricated using 3D printing method for the measurement of vertical pressure. The raw material used for the fabrication of this new pressure sensor was Polylactic Acid (PLA). The
Chengyu Hong, Yifan Zhang, Lalit Borana
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Highly sensitive fiber Bragg grating refractive index sensors [PDF]
, 2005 We combine fiber Bragg grating (FBG) technology with a wet chemical etch-erosion procedure and demonstrate two types of refractive index sensors using single-mode optical fibers. The first index sensor device is an etch-eroded single FBG with a radius of
Huang, Yanyi +4 more
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Acoustic Emission Measurement by Fiber Bragg Grating Glued to Cylindrical Sensor Holder
Advances in Materials Science and Engineering, 2014 Fiber Bragg grating (FBG) is an optical fiber sensor and is suitable for acoustic emission (AE) measurements of structures such as chemical plants that require water resistance, explosion proofing, and so forth, However, directionality has been a problem
Masanori Takuma +8 more
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Application of Fiber Bragg Grating Acoustic Emission Sensors in Thin Polymer-Bonded Explosives
Sensors, 2018 Fiber Bragg grating (FBG) acoustic emission (AE) sensors have been used in many applications. In this paper, based on an FBG AE sensor, the sensing principle of the interaction between the AE wave and the sensor is introduced. Then, the directionality of
Tao Fu, Peng Wei, Xiaole Han, Qingbo Liu
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Evaluation of the optical switching characteristics of erbium-doped fibres for the development of a fibre Bragg grating sensor interrogator [PDF]
, 2014 A polling topology that employs optical switching based on the properties of erbium-doped fibres (EDFs) is used to interrogate an array of FBGs. The properties of the EDF are investigated in its pumped and un-pumped states and the EDFs’ switching ...
Bhattacharyya, Debabrata +7 more
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