[1] Ma Bin, Sui Qingmei. Design of vehicle weight-in-motion system based on the fiber-optic micro-bend sensor[J]. Chinese Journal of Sensors and Actuators, 2010, 23(8): 1195-1200.
[2] L Glavind, S Buggy, J Canning, et al.. Long-period gratings for selective monitoring of loads on a wind turbine blade[J]. Appl Opt, 2014, 53(18): 3993-4001.
[3] Dong Xingyong, Zhang Ying, Guan Baiou, et al.. Experimental research of fiber grating circumflexion sensor[J]. Acta Photonica Sinica, 2000, 29(9): 807-809.
[5] Wang Yiping, Chen Jianping, Rao Yunjiang. Long period fiber grating sensors measuring bend-curvature and determining benddirection simultaneously[J]. Journal of Optoelectronics·Laser, 2005, 16(10): 1139-1143.
[6] Pouneh Saffari, Thomas Allsop, Adedotum Adebayo, et al.. Long period grating in multicore optical fiber: an ultra-sensitive vector bending sensor for low curvatures[J]. Opt Lett, 2014, 39(12): 3508-3511.
[7] O Frazo, J Viegas, P Caldas, et al.. All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating[J]. Opt Lett, 2007, 32(21): 3074-3076.
[9] H Qu, G F Yan, M Skorobogatiy. Interferometric fiber-optic bending/nano-displacement sensor using plastic dual-core fiber[J]. Opt Lett, 2014, 39(16): 4835-4838.
[11] Guo Xinchun, Ning Tigang, Li Jing, et al.. Fiber-optic curvature sensor based on a core-offset structure[J]. Journal of Optoelectronics·Laser, 2014, 25(8): 1476-1480.
[12] An Jiali, Sun Mingming, Liang Houhui, et al.. Curvature sensor based on a pressure-induced birefringence single mode fiber loop mirror[J]. Optik, 2014, 125(13): 3228-3230.
[13] Shen Changyu, Zhong Chuan, You Yang, et al.. Polarization-dependent curvature sensor based on an in-fiber Mach-Zehnder interferometer with a difference arithmetic demodulation method[J]. Opt Express, 2012, 20(14):15406-15417.
[14] K S C Kuang, W J Cantwell, P J Scully. An evaluation of a novel plastic optical fibre sensor for axial strain and bend measurements [J]. Meas Sci & Technol, 2002, 13(10): 1523-1534.
[15] Siamak Dawazdah Emami, Hairul A Abdul-Rashid, Fatemeh Zahra Zahedi, et al.. Investigation of bending sensitivity in partially doped core fiber for sensing applications[J]. IEEE Sensors Journal, 2014, 14(4): 1295-1303.
[16] Ni Kai, Li Tao, Hu Limin, et al.. Temperature-independent curvature sensor based on tapered photonic crystal fiber interferometer [J]. Opt Commun, 2012, 285(24): 5148-5150.
[18] Niu Luo, Zhao Chunliu, Gong Huaping, et al.. Curvature sensor based on two cascading abrupt-tapers modal interferometer in single mode fiber[J]. Opt Commun, 2014, 333: 11-15.
[19] Joel Villatoro, Vittoria Finazzi, Vladimir P, et al.. Temperature-insensitive photonic crystal fiber interferometer for absolute strain sensing[J]. Appl Phys Lett, 2007, 91(9): 091109.
[20] Woojin Shin, Yeung Lak Lee, Bong-Ahn Yu, et al.. Highly sensitive strain and bending sensor based on in-line fiber Mach-Zehnder interferometer in solid core large mode area photonic crystal fiber[J]. Opt Commun, 2010, 283(10): 2097-2101.