Roof Separation Sensor Based on Fiber Bragg Grating

Zegong Wu; Lu Cao; Yanong Ning; Qingshan Yang; Tongyu Liu

doi:10.3788/LOP222686

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 11 >Page 1106033 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 11, 1106033 (2023)

Roof Separation Sensor Based on Fiber Bragg Grating

Zegong Wu¹, Lu Cao², Yanong Ning², Qingshan Yang², and Tongyu Liu^1,2,*

Author Affiliations

¹Laser Institute, Shandong Academy of Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250104, Shandong, China

²Shandong Micro-Sensor Photonics Ltd., Jinan 250103, Shandong, China

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DOI: 10.3788/LOP222686 Cite this Article Set citation alerts

Zegong Wu, Lu Cao, Yanong Ning, Qingshan Yang, Tongyu Liu. Roof Separation Sensor Based on Fiber Bragg Grating[J]. Laser & Optoelectronics Progress, 2023, 60(11): 1106033 Copy Citation Text

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Fig. 1. Simplified diagram of the internal objects for roof separation sensor

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Fig. 2. Interior physical drawings for roof separation sensor

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Fig. 3. Schematic diagram of the experimental setup

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Fig. 4. Temperature and wavelength diagram

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Fig. 5. Wavelength and standard displacement diagram

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Standard /mm	Temperature FBG /nm	Strain FBG /nm	Demodulation /mm	Error /mm
0.00	1567.022	1549.477	0.000	0.000
30.00	1567.021	1549.578	30.476	0.476
60.00	1567.022	1549.678	59.299	-0.701
90.00	1567.022	1549.781	89.686	-0.314
120.00	1567.022	1549.883	119.778	-0.222
150.00	1567.021	1549.985	150.549	0.549
180.00	1567.022	1550.087	179.962	-0.038
210.00	1567.022	1550.189	210.054	0.054
240.00	1567.022	1550.291	240.146	0.146
270.00	1567.022	1550.393	270.238	0.238
300.00	1567.022	1550.495	300.330	0.330

Table 1. Error analysis at 40 ℃

Standard /mm	Temperature FBG /nm	Strain FBG /nm	Demodulation /mm	Error /mm
0.00	1566.890	1549.333	0.000	0.000
30.00	1566.890	1549.440	31.567	1.567
60.00	1566.891	1549.540	60.382	0.382
90.00	1566.891	1549.637	88.999	-1.001
120.00	1566.891	1549.745	125.876	0.876
150.00	1566.891	1549.847	155.968	0.968
180.00	1566.891	1549.949	181.045	1.045
210.00	1566.891	1550.051	211.137	1.137
240.00	1566.891	1550.153	241.229	1.229
270.00	1566.891	1550.255	271.321	1.321
300.00	1566.889	1550.342	298.363	-1.637

Table 2. Error analysis at 27 ℃

Standard /mm	Temperature FBG /nm	Strain FBG /nm	Demodulation /mm	Error /mm
0.00	1566.616	1548.949	0.000	0.000
30.00	1566.616	1549.049	29.502	0.498
60.00	1566.615	1549.146	58.797	1.203
90.00	1566.616	1549.252	89.391	0.609
120.00	1566.616	1549.353	119.188	0.812
150.00	1566.616	1549.458	150.165	-0.165
180.00	1566.616	1549.558	179.667	0.333
210.00	1566.616	1549.660	209.759	0.241
240.00	1566.616	1549.761	239.556	0.444
270.00	1566.616	1549.868	271.123	-1.123
300.00	1566.616	1549.969	300.920	-0.920

Table 3. Error analysis at 0 ℃

Zegong Wu, Lu Cao, Yanong Ning, Qingshan Yang, Tongyu Liu. Roof Separation Sensor Based on Fiber Bragg Grating[J]. Laser & Optoelectronics Progress, 2023, 60(11): 1106033

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