[1] Djordjevich A, Fung M, Fung R Y K. Principles of deflectioncurvature measurement. Measurement Science and Technology, 2001, 12(11): 1983-1989
[2] Djordjevich A, Jang K K, Yu Z H. Curvature gauges embedded in composites. Materials Science Research International, 1999, 50(3): 210-215
[3] Culshaw B. Fiber optics in sensing and measurement. Selected Topics in Quantum Electronics, 2002, 6(6): 1014-1021
[4] Wang Y P, Chen J P, Rao Y J. Long period fiber grating sensors measuring bend-curvature and determining bend-direction simultaneously. Optoelectronics$Laser, 2005, 16(10): 1139-1143 (in Chinese)
[5] Zhao X Y, Gu Z X. Comparisons and applications of fiber Bragg grating and long-period fiber grating. Transducer and Microsystem Technologies, 2007, 26(2): 11-14
[6] Zhao S G, Wang X, Yuan L B. Four-core fiber based bending sensor. Acta Optica Sinica, 2006, 26(7): 1001-1006 (in Chinese)
[7] Li H G, Fan W D, Sheng Q Q. Principles and applications of the micro-bending optical fiber sensor. Transducer World, 2007, 13(1): 13-17
[8] Danisch L, Thompson W, Ele A, Lovely D, Hudgins B, Biden E, Caldwe R, Snow J, MacKay I, Aite E. Bend enhanced fiber optic sensors in a teleoperation application. Proceedings of SPIE, 1993, 2070: 73-85
[9] Kovacevic M, Nikezic D, Djordjevich A. Monte Carlo simulation of curvature gauges by ray tracing. Measurement Science and Technology, 2004, 15(10): 1756-1761
[10] Djordjevich A, Fung M, Fung R Y K. Principles of deflectioncurvature measurement. Measurement Science and Technology, 2001, 12(11): 1983-1989
[11] Liu R Q, Liu P K, Fu Z, Zhao Y Z,Wang S G. Operation principle of a bend enhanced curvature optical fiber sensor. Acta Optica Sinica, 2007, 27(5): 807-812 (in Chinese)
[12] Tien P K. Light waves in thin films and integrated optics. Applied Optics, 1971, 10(11): 2395-2413
