(2008). Compensation of hysteresis in magnetic field sensors employing Fiber Bragg Grating and magneto-elastic materials, Sensors and Actuators A: Physical 147(1): 127-136.Davino, D.; Visone, C.; Ambrosino, C.; Campopiano, S.; Cusano, A.; Cutolo, A. Compensation of hysteresis in ...
It has a pressure sensitivity up to 3.64 pm/bar and hysteresis error of 0.75% of full-scale pressure in the range of 0 to 700 bar, with correlative coefficient of 99.99%. Here COMSOL Multiphysics software is used to detect the structural and thermal stress analysis of diaphragm, and to ...
This improvement in the sensitivity at the cost of enhanced non-linear responses and hysteresis of the measurement system (de Lima Filho et al., 2014, Yamada et al., 2011). The non-linearities primarily originate due to the temperature dependency of the thermal expansion coefficients of the ...
1) fiber grating sensor 光纤光栅传感 1. Study on fiber grating sensor with self-compensation capability for stress hysteresis and temperature; 温度和应力迟滞自补偿型光纤光栅传感器的研究 2. As the conventional fiber grating sensor network is poor in flexibility and mobility,we propose a novel fib...
filmtothefiberBragggrating(FBG).TheBraggwavelengthofthepolyimide—coatedFBGchanges whileitisexposedtodifferenthumidityconditionsduetothevolumeexpansionofthepolyimide coating.Thecharacteristicsofsensors,includingsensitivitytemporalresponse,andhysteresis,were improvedbycontrollingthecoatingthicknessandthedegreeofimidizationduring...
The grating behavior was investigated up to 1500°C with no detectable reduction in the grating reflectivity or hysteresis in the Bragg resonance. Measurements of the change in the effective index of the fiber as a function of temperature are reported and the performance of the grating as a ...
The gratings perform well in cycling experiments up to 1000 ℃ and hysteresis in the wavelength response was not detected. The capability of this new type of FBG to be used for high temperature sensors is briefly discussed. 展开 会议名称: Optical Fibre Sensors pt.1 ...
temperature gradients and hysteresis that are undetected by external measurements, thus preventing their thorough analysis and the development of countermeasures and safeguards. While sensors currently exist to monitor the needed parameters in cells11, for example in situ temperature monitoring by inserting ...
(no wear and no problem with replacement pieces), there are no problems of hysteresis (repeatable), and the light is always guided in the same way within the fiber (repeatable and accurate). Moreover, for the characteristics of anyfiber optics, any variation, no matter how small, in the ...
(FBG).A method of dither modulating is introduced into the system to match the center of the reflected wavelength of FBG,and a strain gauge is used to read the output of the system.The non linearity and hysteresis have been erased thoroughly.The measurement precision of the system has been ...