Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing

Xiaofeng Wang; Yongxing Guo; Li Xiong

doi:doi:10.3788/COL201816.070604

Chinese Optics Letters, 2018, 16 (7): 070604, Published Online: Jul. 19, 2018

Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing Download： 629次

Xiaofeng Wang ^1,2Yongxing Guo ^3,*Li Xiong ⁴

Author Affiliations

¹ School of Communication, Shenzhen University, Shenzhen 518060, China

² School of Political Science and Public Management, Wuhan University, Wuhan 430072, China

³ Key Laboratory of Metallurgical Equipment and Control Technology, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China

⁴ Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

Figures & Tables

Fig. 8. Linear response test: (a) the three test results, and (b) the linear fitting of the average test data.

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Fig. 9. (a) Wavelength shift responses in the work and transverse directions, and (b) an enlarged view of the local data.

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Fig. 10. (a) Part of the experimental data for the reliability test, and (b) an enlarged view of the local data.

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Fig. 11. Temperature test results: (a) the linear fitting result, and (b) the polynomial fitting result.

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Table1. Changing Situation of the Above Three Key Parameters at Different Excitation Numbers

Excitation Time (s)	Corresponding cycle number	Pre-tension amount (nm)	Sensitivity (pm/g)	Resonant frequency (Hz)
0	0	1.241	27.28	970
1	$10^{3}$	1.247	28.13	975.5
10	$10^{4}$	1.24	28.09	971
100	$10^{5}$	1.243	27.56	965
1000	$10^{6}$	1.245	28.33	961

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Xiaofeng Wang, Yongxing Guo, Li Xiong. Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing[J]. Chinese Optics Letters, 2018, 16(7): 070604.

Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing Download： 629次

Fig. 1. Installation situation of a traditional temperature sensor.

Fig. 2. Schematic diagram of the proposed FBG hybrid sensor.

Fig. 3. Relation between length $L$ , weight $m$ , and the resonant frequency.

Fig. 4. Photo of the hybrid FBG sensor.

Fig. 5. Experimental setup of the vibration test.

Fig. 6. Amplitude–frequency response curve.

Fig. 7. Time response capability under different vibration frequencies.

Fig. 8. Linear response test: (a) the three test results, and (b) the linear fitting of the average test data.

Fig. 9. (a) Wavelength shift responses in the work and transverse directions, and (b) an enlarged view of the local data.

Fig. 10. (a) Part of the experimental data for the reliability test, and (b) an enlarged view of the local data.

Fig. 11. Temperature test results: (a) the linear fitting result, and (b) the polynomial fitting result.

Table1. Changing Situation of the Above Three Key Parameters at Different Excitation Numbers

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Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing Download： 629次

Fig. 1. Installation situation of a traditional temperature sensor.

Fig. 2. Schematic diagram of the proposed FBG hybrid sensor.

Fig. 3. Relation between length L, weight m, and the resonant frequency.

Fig. 4. Photo of the hybrid FBG sensor.

Fig. 5. Experimental setup of the vibration test.

Fig. 6. Amplitude–frequency response curve.

Fig. 7. Time response capability under different vibration frequencies.

Fig. 8. Linear response test: (a) the three test results, and (b) the linear fitting of the average test data.

Fig. 9. (a) Wavelength shift responses in the work and transverse directions, and (b) an enlarged view of the local data.

Fig. 10. (a) Part of the experimental data for the reliability test, and (b) an enlarged view of the local data.

Fig. 11. Temperature test results: (a) the linear fitting result, and (b) the polynomial fitting result.

Table1. Changing Situation of the Above Three Key Parameters at Different Excitation Numbers

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Fig. 3. Relation between length $L$ , weight $m$ , and the resonant frequency.