Improvement of Fiber Bragg Grating Interrogator sensitivity for triaxial accelerometer

Cazo, Rogério M.; Ferreira, Jorge Luis de Siqueira; Caldas, Tales de Barros; Arruda, Josiel Urbaninho de; Alles, Noe; Louzada, Rafael Cardoso

doi:10.1109/imoc.2009.5427499

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…3) applies a technique using the two sensing FBG's to demodulate the wavelength coded signal into optical intensity [21]. This technique uses two FBG's in series.…”

Section: Optical Accelerometermentioning

confidence: 99%

Uniaxial fiber Bragg grating accelerometer system with temperature and cross axis insensitivity

2011

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“…3) applies a technique using the two sensing FBG's to demodulate the wavelength coded signal into optical intensity [21]. This technique uses two FBG's in series.…”

Section: Optical Accelerometermentioning

confidence: 99%

Uniaxial fiber Bragg grating accelerometer system with temperature and cross axis insensitivity

2011

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“…Three optical fibers with a pair of FBGs in each one were assigned for the proposed accelerometer. It is different from the sensors in [20][21][22][23]. There, three fiber Bragg gratings were embedded in or arranged on three legs, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Additional energy would not be dissipated in the compliant layer in [20]. The interrogation method is different from that in papers [20][21][22]24]. Vibration induces high-speed variations in dynamic strain; in order to reach high-speed interrogation rates of the FBG vibration sensors different approaches have been reported, but all of them avoid the optical spectral characterization of the reflected light, since this takes some time and slows down the interrogation rate.…”

Section: Introductionmentioning

confidence: 99%

Simulation and experimental study of a three-axis fiber Bragg grating accelerometer based on the pull–push mechanism

Jiang

Meng

2013

Meas. Sci. Technol.

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A three-axis fiber Bragg grating accelerometer, which has uniform sensitivities to three axes, has been developed for seismic application. This paper presents the design, simulation and calibration of the three-axis accelerometer. A series of experiments were performed to measure harmonic vibration and shock vibration. The precise acceleration was measured by a PZT accelerometer which provided high sensitivity. The fully described dynamic sensitivity of three-axis accelerometers represented by a 3-by-3 matrix is given. The results indicate that the accelerometer has a sensitivity of 0.068 V g−1 in a measured full scale of ±2.5 m s−2. The cross-axis sensitivity was measured as −75.5 dB, −75.5 dB and −78.2 dB, respectively.

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“…Nowadays, the main disadvantage of this type of technology resides on the considerable cost of the interrogation system. Nevertheless several techniques have been investigated to make this type of sensors cost effective [11,[16][17][18][19][20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Biaxial Optical Accelerometer and High-Angle Inclinometer With Temperature and Cross-Axis Insensitivity

et al. 2012

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In this paper, we describe the implementation and test of an optical fiber biaxial accelerometer and inclinometer based on fiber Bragg gratings. The proposed sensor is a low cost and simple solution to measure acceleration and relative rotation in two orthogonal directions, which can be used for structural health monitoring. Sensitivities of 87.848 and 92.351 pm.g −1 , for each sensitive direction with resonant frequencies of 846.01 and 845.33 Hz, respectively, are achieved. For the inclinometer, the tilt sensitivities are 1.43 ± 0.03 and 1.38 ± 0.03 pm/º for each orthogonal sensitive direction for angular rotations smaller than 45º. For inclinations higher than 45º, a suitable calibration expression is presented.

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Improvement of Fiber Bragg Grating Interrogator sensitivity for triaxial accelerometer

Cited by 4 publications

References 3 publications

Uniaxial fiber Bragg grating accelerometer system with temperature and cross axis insensitivity

Uniaxial fiber Bragg grating accelerometer system with temperature and cross axis insensitivity

Simulation and experimental study of a three-axis fiber Bragg grating accelerometer based on the pull–push mechanism

Biaxial Optical Accelerometer and High-Angle Inclinometer With Temperature and Cross-Axis Insensitivity

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