Sensors optical-fibre grating

Chen B X, Mather M H and Nawy E G, Fibre-optic Bragg grating sensor for nondestructive evaluation of composite beam , J. Struct. Eng., 1994,12(12), 3456 70. [Pg.146]

James, S. W. Tatam, R. P., Optical fibre long period grating sensors characteristics and application, Meas. Sci. Technol. 2003, 14, R49 R61... [Pg.72]

Fibre Bragg grating sensors are a type of optical sensor that has received considerable attention in recent years. They are used for monitoring the structural condition of fibre-reinforced composites, concrete constructions or other construction materials. [Pg.237]

Those based on the fluorescence lifetime, rather than intensity (e.g. the Ipitek system), allow one to avoid problems of light loss and other factors that could affect calibration, as discussed above. Assessment of tilted Bragg gratings and long-period gratings on optical fibres has shown them to be a probe of cure of the resin as well as being both temperature- and strain-sensitive (Buggy et al, 2007). The complexity of the response of these and fibre-optics based Fabry-Perot interferometers to strain, temperature and refractive index makes it necessary to employ combinations of sensors if measurements of all of these properties are required separately. [Pg.430]

As mentioned earlier, optical fibres with Bragg gratings can also be applied as pressure and strain sensors. When these fibres are integrated into a mattress or bed sheet, they will be deformed as soon as pressure is exerted on them. The deformation will cause proportional changes in the Bragg wavelength and, hence, the movement can be tracked (Dziuda and Skibniewski, 2014). [Pg.210]

Kuang KSC, Kenny R, Whelan MP, Cantwell WJ, ChaUcer PR. Residual strain measurement and impact response of optical fibre Bragg grating sensors in fibre metal laminates. Smart Mater Struct 2001 10(2) 338—46. http //dx.doi.org/10.1088/0964-1726/10/2/321. [Pg.502]

Wehrle, G., Nohama, P., Jose Kalinowski, H., Ignacio Torres, P., Valente, L.C.G., 2001. A fibre optic Bragg grating strain sensor for monitoring ventilatory movements. Measurement Science and Technology 12 (7), 805. [Pg.536]

James, S.W. and Tatam, R.P. Optical fibre long-period grating sensors characteristics and application. Meas. Sci. Technol. 14(2003), pp. R49-R61 Farahi, F. Simultaneous Measurement of Strain and Temperature Using Fiber Grating Sensors. Proc. 11th Eng. Mechanics Conf. Fort Lauderdale, Conf. vol. 1 (1996), 351-354... [Pg.365]

Krebber, K. Habel, W.R., et al. Fiber Bragg grating sensors for monitoring of wind turbine blades. 17th Int. Conf on Optical Fibre Sensors (OFS-17), Bruges, Belgium, SPIEl-Vol. 5855 (2005), pp. 1036-1039... [Pg.367]

Buric M, Chen KP, Bhattarai M, Swinehart PR, Maklad M (2007) Active fibre Bragg grating hydrogen sensors for all-temperature operation. IEEE Photonics Technol Lett 19(5) 255-257 Butler MA (1984) Optical fiber hydrogen sensor. Appl Phys Lett 45(10) 2736-2740... [Pg.164]

Sakamoto Y, Takai K, Takashima I, Imada M (1996) Electrical resistance measurements as a function of composition of palladium-hydrogen(deuterium) systems by a gas phase method. J Phys Condens Matter 8 3399-3411 Schroeder K, Ecke W, WUlsch R (2009) Optical fibre Bragg grating hydrogen sensor based on evanescent-field interaction with palladium thin-film transducer. Opt Lasers Eng 47(10) 1018-1022 Sharma AK, Gupta BD (2007) On the performance of different bimetaUic combinations in surface plasmon resonance based fiber optic sensors. J Appl Phys 101(9) 093111... [Pg.165]

Wei X, Wei T, Xiao H, Lin YS (2008) Nano-structured Pd-long period fibre gratings integrated optical sensor for hydrogen detection. Sens Actuators B 134 687-693... [Pg.166]

Zhang A P, Tao X M and Tam H Y, Prediction of polarization behavior of twisted optical fibres containing Bragg grating sensors, J. Textile Inst., 2000, Part 3,105-16. [Pg.172]

This chapter provides a review of various types of fibre optic sensors, major issues of smart textile composites integrated with fibre Bragg grating sensors, that is temperature and strain coupling, sensitivity, multiaxial strain measurement, measurement effectiveness and reliability issues, as well as various measurement systems for smart textile composites integrated with fibre optic sensors. [Pg.175]

Location and direction of sensors in composite hosts usually the FBG sensor is used to measure certain positional and directional normal strain in the host. However, in the procedure of embedding the FBG sensor into the composite host, some deviation of the optic fibre sensor may occur from the designed position and direction. To reduce the measurement error, determination of the real location of the grating of FBG sensors inside the composite may be a key issue, especially when the sensors are... [Pg.191]

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