[1] COSTA R C, SODRE J R. Hydrous ethanol vs. gasoline-ethanol blend: engine performance and emissions[J]. Fuel, 2010, 89(2): 287-293.
[2] HSIEH W D, CHEN R H, WU T L, et al. Engine performance and pollutant emission of an SI engine using ethanol–gasoline blended fuels[J]. Atmospheric Environment, 2002, 36(3): 403-410.
[3] SUN Wan-chen, DU Jia-liang, GUO Liang, et al. The effects of gasoline/diesel blend fuels on the combustion and ultra-fine particulate emission of a compression ignition engine.[J]. Automotive Engineering, 2015, 37(10): 1117-1122.
[5] ELSTER J L, TREGO A, CATTERALL C, et al. Flight demonstration of fiber optic sensors[C]. SPIE, 2003,50(50): 34-42.
[6] BI Wei-hong, CHEN Lian-sheng, ZHANG Hao, et al. Theoretical and experimental analysis on ethanol content detection in oil by long period fiber grating[J]. Journal of Optoelectronics·Laser, 2013, 25(10): 1895-1899.
[7] FALATE R, KAMIKAWACHI R C, MULLER M, et al. Fiber optic sensors for hydrocarbon detection[J]. Sensors and Actuators B: Chemical, 2005, 105(2): 430-436.
[8] ZHANG Bin, ZHU Hao-tian, HE Ru-shuang, et al. Measurement of saturation point of aqueous solution based on long period michelson interferometer[J]. Acta Photonica Sinica, 2014, 43(9): 0906006
[9] HU Xing-liu, LIANG Da-kai, WANG Yan, et al. The temperature-insensitive package of long period fiber grating pair used in liquid detection[J]. Journal of Optoelectronics·Laser, 2013, 24(10): 1895-1899.
[10] ZHANG Ling, MIAO Fei, SUI Qing-mei, et al. Solution concentration sensing characteristics of LPFG written by femtosecond laser pulses[J]. Journal of Optoelectronics·Laser, 2012, 23(5): 897-901.
[11] ERDOGAN T. Fiber grating spectra[J]. Journal of Lightwave Technology, 1997, 15(8): 1277-1294.
[12] CHEN Hai-yun, PENG Bao-jin, SI Jian-xiao, et al. Film sensor based on long-period fiber grating with reduced cladding[J]. Acta Photonic Sinica, 2016, 45(1): 0106003.
[13] JIN Qing-li, HUANG Xiao-hong, YAN Li-feng, et al. Optimization of long_period fiber grating for refractive-index sensor[J]. Acta Photonica Sinica, 2011, 40(8): 1201-1204.
[15] LEE B H, LIU Y, LEES B, et al. Displacements of the resonant peaks of a long-period fiber grating induced by a change of ambient refractive index[J]. Optics Letters,1997, 22(23): 1769-1771.
[16] STEGALL D B, ERDOGAN T. Leaky cladding mode propagation in long-period fiber grating devices[J]. IEEE Photonics Technology Letters, 1999, 11(3): 343-345.
[17] TONG Zhi, TAO Feng, WEI Huai, et al. Numerical analysis of coupling from core mode to radiation mode in long period fiber gratings[J]. Acta Electronic Sinica, 2003, 31(1): 89-91.
[18] GUAN Shou-hua, YU Qing-xu, SONG Shi-de, et al. Theoretical and experimental study on temperature characteristic of long period fibre grating[J]. Chinese Journal of Sensors and Actuators, 2007, 20(3): 543-545.
[19] LU Shao-hua, XU Ou, FENG Su-chun, et al. Refractive index sensors based on long period fibre gratings[J]Elector-Optic Technology Application, 2008, 23(4): 35-38.