[1] KOROTCENKOV G, HAN S D, STETTER J R. Review of electrochemical hydrogen sensors［J］. Chemistry Reviews, 2009, 109(3): 14021433.

[2] LEE J, KIM J H, HAN Y G, et al. Investigation of Raman fiber laser temperature probe based on fiber Bragg gratings for longdistance remote sensing applications［J］. Optics Express, 2004, 12(8): 17471752.

[3] LIN Qiao, CHEN Liuhua, LI Shu, et al. Optical fiber bending sensor based on michelson interferometer［J］. Acta Photonica Sinica, 2011, 40(2): 251254.

[4] HE X L, LI J P, GAO X G, et al. NO2 sensing characteristics of WO3 thin film microgas sensor［J］.Sensors and Actuators B, 2003, 93(2): 463467.

[5] STANKOVA M, VILANOVA X, CALDERER J, et al. Detection of SO2 and H2 sin CO2 stream by means of WO3based microhotplate sensors［J］.Sensors and Actuators B, 2004, 102(2): 219225.

[6] BLO M, CAROTTA M C, GALLIERA S, et al. Synthesis of pure and loaded powders of WO3 for NO2 detection through thick film technology［J］. Sensors and Actuators B, 2004, 103(2): 213218.

[7] STANKOVA A, VILANOVA X, LLOBET E, et al. Influence of the annealing and operating temperatures on the gassensing properties of RF sputtered WO3 thinfilm sensors［J］. Sensors and Actuators B, 2005, 105(2): 271277.

[8] STOLZE M, CAMIN B, GALBERT F, et al. Nature of substoichiometry in reactively DCsputtered tungsten oxide thin films and its effect on the maximum obtainable colouration by gasses［J］.Thin Solid Films, 2002, 409(2): 254264.

[9] YANG Xiaohong, WANG Xinqiang, TANG Yike, et al. Study on optical and hydrogen sensing properties of nanocrystalline WO3 films［J］. Transducer and Microsystem Technologies, 2006, 25(11): 1214.

[10] SHANAK H, SCHMITT H, NOWOCZIN J, et al. Effect of Ptcatalyst on gasochromic WO3 films: optical,electrical and AFM investigations［J］.Solid State Ionics, 2004, 171(2): 99106.

[11] HILL K O, MELTZ G. Fiber Bragg grating technology fundamentals and overview［J］. IEEE Journal of Lightwave Technology, 1997, 15(8): 12631276.

[12] ZHOU Jinlong, DONG Xiaopeng, SHI Zhidong. The theoretical and experimental research on the bending sensitivity of dshaped fiber bragg grating［J］. Acta Photonica Sinica, 2006, 35(11): 17341737.

[13] DAI Jixiang, YANG Minghong, CHEN Yun, et al. Hydrogen sensor based on Dshaped fiber bragg grating coated with WO3Pd composite films［J］. Acta Photonica Sinica, 2011, 40(7): 10031007.

[14] LIU Hongliang, YANG Minghong, DAI Jixiang, et al. Research on characteristic of fiber optic hydrogen sensor based on palladium and its composite films［J］. Acta Optica Sinica, 2010, 30(12): 33983402.