[1] Bao H L, Dong X Y, Zhao C L et al. Temperature-insensitive FBG tilt sensor with a large measurement range[J]. Optics Communications, 283, 968-970(2010).

[2] Li C, Li X, Yu X Y et al. Room-temperature wide measurement-range optical fiber Fabry-Perot tilt sensor with liquid marble[J]. IEEE Sensors Journal, 18, 170-177(2018).

[3] Zhang W Y, Zhu H R, Li N. Research on stereo grating angle sensor system[J]. Laser & Optoelectronics Progress, 58, 2312005(2021).

[4] Jing G Q, Duan F J, Li J S et al. Statistical analysis on the impacts of excitation sources on tilt sensors’ online calibration[J]. Acta Metrologica Sinica, 40, 563-568(2019).

[5] Su S Q, Li D C. Research and design of a novel magnetic fluid tilt sensor[J]. Journal of Electronic Measurement and Instrumentation, 30, 431-439(2016).

[6] Liu Z Z, Zhang W Z, Xue X B et al. Liquid pendulum based cylindrical surface capacitor tilt sensor[J]. Chinese Journal of Sensors and Actuators, 31, 1024-1027(2018).

[7] Ye L X, Lou Z Y, Li X et al. Dual-axis capacitive inclination sensor based on liquid pendulum[J]. Micronanoelectronic Technology, 58, 316-324(2021).

[8] Liao Y B, Yuan L B, Tian Q. The 40 years of optical fiber sensors in China[J]. Acta Optica Sinica, 38, 0328001(2018).

[9] Qin H Y, Lin Y, Jiang Y et al. Application of fiber Bragg grating sensor in cable force monitoring of cable-stayed bridge[J]. Railway Engineering, 60, 51-55(2020).

[10] Sun L, Wang X Y, Li C et al. New double fiber Bragg grating static level based on equal strength beams[J]. Acta Optica Sinica, 41, 1406005(2021).

[11] Guo Y X, Li C, Zhou X L et al. Wide-range fiber Bragg grating tilt sensor based on a cam structure[J]. IEEE Sensors Journal, 20, 4740-4748(2020).

[12] Xing X K, Jiang X, Liu F F et al. Research on FBG humidity sensor based on polyimide material[J]. Laser & Optoelectronics Progress, 59, 1328002(2022).

[13] Yang H L, Liang S B, Li C et al. Research of electric power tower tilt angle sensor based on FBG[J]. Transducer and Microsystem Technologies, 32, 21-24(2013).

[14] Yang J, Zhang C S, Liang S B et al. Research on tilt sensor of transmission towers based on optical fiber sensing technology[J]. Control and Instruments in Chemical Industry, 45, 683-686(2018).

[15] Chen J, Guo Y X, Zhu F D et al. Fiber Bragg grating inclination sensor for transmission tower[J]. Laser & Optoelectronics Progress, 56, 080602(2019).

[16] Xie T, Wang X, Li C et al. Fiber Bragg grating differential tilt sensor based on mercury column piston structure[J]. Acta Optica Sinica, 37, 0306002(2017).

[17] Cui P, Zhang W T, Song Y. High resolution inclinometer based on vertical pendulum and fiber Bragg grating Fabry-Perot cavity[J]. Chinese Optics Letters, 16, 110603(2018).

[18] Xu H B, Li F, Zhao W G et al. Research on remote automatic monitoring system of high and steep slope based on FBG tilt sensor[J]. IOP Conference Series, 267, 042091(2019).

[19] Wang N S, Hong C Y, Su D et al. Inclinometer sensors based on fiber Bragg grating and additive manufacturing technology[J]. Laser & Optoelectronics Progress, 58, 0906005(2021).

[20] Wu X Z, Ren W X. Design of a novel fiber grating inclinometer[J]. Journal of Huazhong University of Science and Technology (Urban Science Edition), 25, 332-334(2008).

[21] Zhang C R, Ge Y X, Hu Z C et al. Research on deflection monitoring for long span cantilever bridge based on optical fiber sensing[J]. Optical Fiber Technology, 53, 102035(2019).

[22] Gu C P. Design and experimental study of a novel inclination sensor based on FBG[D]. Shenyang: Shenyang Jianzhu University(2019).

[23] Yang J Y, Liang L, Tang H M et al. High sensitivity two-directional FBG inclination sensor with temperature compensation[J]. Journal of Optoelectronics·Laser, 31, 351-356(2020).

[24] Chen N K, Feng Z Z, Wang J J et al. Interferometric interrogation of the inclination and displacement of tapered fiber Mach-Zehnder interferometers[J]. IEEE Sensors Journal, 13, 3437-3441(2013).

[25] Zhou Y M, Zhao C L, Shi F F et al. Angle sensor with two cascading abrupt-taper based on interferometer and single mode optical fiber[J]. Journal of Shanghai University (Natural Science Edition), 23, 543-548(2017).

[26] Zhao X F, Kong X L, Li L. An experimental study of fiber Bragg grating tilt sensor[J]. Journal of Disaster Prevention and Mitigation Engineering, 30, 243-246(2010).

[27] Wang Y, Zhao C L, Hu L et al. A tilt sensor with a compact dimension based on a long-period fiber grating[J]. The Review of Scientific Instruments, 82, 093106(2011).

[28] Moura J P P, Silva S O, Becker M et al. Optical inclinometer based on phase-shifted Bragg grating in a taper configuration[J]. Proceedings of SPIE, 8794, 87940D(2013).

[29] Deng M, Yin F Y, Shi L L et al. Optical inclinometer based on a single long-period fiber grating combined with a large lateral offset[J]. Proceedings of SPIE, 9679, 96790V(2015).