并联复用光纤法-珀加速度传感器及解调方法的研究
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摘要
提出了一种基于菲佐干涉仪的并联复用光纤法-珀加速度传感器的解调原理及系统,其中光纤法-珀加速度传感器是基于惯性质量引起法-珀腔腔长变化实现加速度传感的原理。针对此并联复用系统,建立了菲佐干涉仪的相对输出光强与光纤法-珀加速度传感器的法-珀腔腔长和菲佐干涉仪的厚度之间的关系模型,进一步建立了基于菲佐干涉仪的光纤法-珀加速度传感器系统的加速度传感理论模型。在此基础上对菲佐干涉仪解调并联复用光纤法-珀加速度传感器信号的原理进行了数值仿真,并对基于菲佐干涉仪解调的多通道光纤法-珀加速度传感器并联复用能力进行了分析。研究结果表明,数值仿真结果和理论分析相吻合,菲佐干涉仪解调多通道光纤法-珀加速度传感器并联复用系统具有可行性。
A demodulation principle and system for the multi-channel multiplexed Fabry-Pérot fiber-optic accelerometers in parallel based on a Fizeau interferometer are proposed,and the Fabry-Pérot fiber-optic accelerometers are based on the principle that the acceleration can be sensed through changing the length of the Fabry-Pérot cavity by the inertial mass.The function of the relative output intensity from the Fizean interferometer with the Fabry-Pérot cavity length of the accelerometers and the wedge thickness of the Fizeau interferometer is established.Furthermore,a theoretical acceleration model for the multiplexed Fabry-Pérot fiber-optic accelerometers based on Fizeau interferometer is also established.On these bases,the demodulation and multiplexing principle of the multiplexed Fabry-Pérot fiber-optic accelerometers based on the Fizeau interferometer are numerically simulated and the multiplexing capacity is analyzed.The research results indicate that the numerical results are consistent with the theoretical analysis and the accelerometers are feasible.
A demodulation principle and system for the multi-channel multiplexed Fabry-Pérot fiber-optic accelerometers in parallel based on a Fizeau interferometer are proposed,and the Fabry-Pérot fiber-optic accelerometers are based on the principle that the acceleration can be sensed through changing the length of the Fabry-Pérot cavity by the inertial mass.The function of the relative output intensity from the Fizean interferometer with the Fabry-Pérot cavity length of the accelerometers and the wedge thickness of the Fizeau interferometer is established.Furthermore,a theoretical acceleration model for the multiplexed Fabry-Pérot fiber-optic accelerometers based on Fizeau interferometer is also established.On these bases,the demodulation and multiplexing principle of the multiplexed Fabry-Pérot fiber-optic accelerometers based on the Fizeau interferometer are numerically simulated and the multiplexing capacity is analyzed.The research results indicate that the numerical results are consistent with the theoretical analysis and the accelerometers are feasible.
引文
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15C.N.Pannell,J.D.C.Jones,D.A.Jackson.The effect of environmental acoustic noise on optical fiber based velocity and vibration sensor systems[J].Measurement Science and Technology,1994,5(4):412～417
16Sun Jiyong,Chen Weimin,Zhu Yonget al..An optic fiber Fabry-Pérot strain sensor systembased on tunable Fabry-Pérot[J].Laser Journal,2002,23(4):49～50孙吉勇,陈伟民,朱永等.基于可调谐法-珀腔解调的光纤法-珀应变传感系统[J].激光杂志,2002,23(4):49～50
17Wang Yong,Liao Yanbiao,Tian Qian.Signal analysis of wavelength scanning interferometry for absolute distance measurement[J].Acta Optica Sinica,1999,19(4):544～551王勇,廖延彪,田芊.用于绝对距离测量的波长扫描干涉仪信号分析[J].光学学报,1999,19(4):544～551
18Chen Weimin,Zhu Yong,Tang Xiaochuet al..Study on the serial multiplex of optical fiber Fabry-Pérot strain sensors with Fourier transform[J].Acta Optica Sinica,2004,24(11):1481～1486陈伟民,朱永,唐晓初等.光纤法布里珀罗传感器串连复用的傅里叶变换解调方法初探[J].光学学报,2004,24(11):1481～1486
19Chen Yusen.Algorithms and Multiplexing of Fiber Fabry-Pérot strain Sensor[D].Chongqing:Chongqing University,2003.16～20陈雨森.光纤法-珀应变传感器的解调算法改进和复用技术研究[D].重庆:重庆大学,2003.16～20
20Zhang Peng.Study on Transform Demodulation Theory of Optical Fiber Fabry-Pérot Sensor and Implementation of Embedded System[D].Chongqing:Chongqing University,2005.42～48章鹏.光纤法-珀传感器非扫描式相关变换解调原理研究及嵌入式系统实现[D].重庆:重庆大学,2005.42～48
21C.Belleville,G.Duplain.Fabry-Pérot optical sensing device for measuring a physical parameter[P].US.5,202,9391993
22Wang Yanhua,Liu Yan,Tan Zhongweiet al..Modified rouard method for fiber Bragg grating Fabry-Pérot cavity[J].Acta Optica Sinica,2008,28(5):840～845王燕花,刘艳,谭中伟等.用于光纤布拉格光栅法布里-珀罗腔的改进的Rouard算法[J].光学学报,2008,28(5):840～845
23Ma Jichi,Li Yan,Sun Wenkeet al..Fabry-Pérot interferometer using tunable diode laser[J].Acta Optica Sinica,2008,28(7):1296～1300马骥驰,李岩,孙文科等.可调波长半导体激光法布里-珀罗干涉仪[J].光学学报,2008,28(7):1296～1300
24Wu Jing,Wang Ming.Application of radial basis function networkin demodulation of Fabry-Pérot pressure sensor[J].Chinese J.Lasers,2009,36(5):1145～1149吴婧,王鸣.径向基函数神经网络在光纤法布里-珀罗传感器解调中的应用[J].中国激光,2009,36(5):1145～1149
25Rao Yunjiang,Deng Ming,Zhu Tao.Visibility-enhanced in-line Fabry-Pérot interferometers by the use of femtosecond lasers[J].Chinese J.Lasers,2009,36(6):1459～1462饶云江,邓明,朱涛.飞秒激光加工的高对比度法布里-珀罗干涉传感器[J].中国激光,2009,36(6):1459～1462
26Tang Caijie,Jiang Yi.High-finesse micro-lens optical fiber Fabry-Pérot interferometers[J].Acta Optica Sinica,2009,29(4):1062～1065唐才杰,江毅.高精细度微透镜光纤法布里-珀罗干涉仪[J].光学学报,2009,29(4):1062～1065
27C.Belleville,G.Duplain.White-light interferometric multimode fiber-optic strain sensor[J].Opt.Lett.,1993,18(1):78～80
2Ding Guilan,Liu Zhenfu,Cui Yuminget al..An all-fiberoptic accelerometer based on compliant cylinders[J].Acta Optica Sinica,2002,22(3):340～343丁桂兰,刘振富,崔宇明等.顺变柱体型全光纤加速度检波器[J].光学学报,2002,22(3):340～343
3B.Lee.Reviewof the present status of optical fiber sensors[J].Optical Fiber Technology,2003,9(2):57～79
4Xiao Hao,Li Fang,Wang Yongjieet al..High-resolution fiber laser sensor system[J].Chinese J.Lasers,2008,35(1):87～91肖浩,李芳,王永杰等.高分辨率光纤激光传感系统[J].中国激光,2008,35(1):87～91
5Kang Chong,Zhang Min,Chen Hongjuanet al..Pressure optical fiber vector hydrophone made of thin-walled cylindrical shell[J].Chinese J.Lasers,2008,35(8):1214～1219康崇,张敏,陈洪娟等.薄壁圆柱壳体压差式光纤矢量水听器[J].中国激光,2008,35(8):1214～1219
6Hang Lijun,He Cunfu,Wu Binet al..Research on novel distributed optical fiber pipeline leakage detection technology and location method[J].Acta Optica Sinica,2008,28(1):123～127杭利军,何存富,吴斌等.新型分布式光纤管道泄漏检测技术及定位方法研究[J].光学学报,2008,28(1):123～127
7Li Hongqiang,Yu Xiaogang,Miao Changyunet al..Research of intelligent clothing for body temperature monitoring based on distributed optical fiber Bragg grating sensors[J].Acta Optica Sinica,2009,29(1):208～212李鸿强,于晓刚,苗长云等.光纤布拉格光栅人体测温的关键问题研究[J].光学学报,2009,29(1):208～212
8Ma Bin,Xu Jian,Sui Qingmei.Experimental study on coupling high-frequency fiber-optic vibration sensor[J].Acta Optica Sinica,2009,29(5):1177～1182马宾,徐健,隋青美.耦合型高频光纤振动传感器实验研究[J].光学学报,2009,29(5):1177～1182
9Wang Zefeng,Hu Yongming.New anti-aliasing filtering underwater fiber-optic acoustic sensors[J].Acta Optica Sinica,2009,29(s1):65～69王泽锋,胡永明.一种新型的抗混叠滤波光纤水声传感器[J].光学学报,2009,29(s1):65～69
10J.Kalenik,R.Pajak.A cantilever optical-fiber accelerometer[J].Sensors and Actuators A-Physical,1998,68(1-3):350～355
11Feng Lishuang,Liu Huilan,Lin Henget al..MOEMS accelerometer based on double Fabry-Pérot interferometers and closed loop[J].J.Beijing University of Aeronautics and Astronautics,2006,32(6):691～694冯丽爽,刘惠兰,林恒等.基于Fabry-Pérot干涉仪的闭环微光机电加速度计[J].北京航空航天大学学报,2006,32(6):691～694
12A.S.Gerges,T.P.Newson,J.D.C.Joneset al..High-sensitivity fiber-optic accelerometer[J].Opt.Lett.,1989,14(4):251～253
13En De,Chen Caihe,Cui Yuminget al..Integrated optics michelson interference acceleration seismic geophone[J].Chinese J.Lasers,2005,32(3):399～403恩德,陈才和,崔宇明等.集成光学迈克耳孙干涉型加速度地震检波器[J].中国激光,2005,32(3):399～403
14Wang Ting,Wang Huinan.Fiber-optic accelerometer based on Michelson interferometry[J].Computer Measurement&Control.,2005,13(10):1066～1068王婷,王惠南.基于Michelson干涉原理的光纤加速度计的研究[J].计算机测量与控制,2005,13(10):1066～1068
15C.N.Pannell,J.D.C.Jones,D.A.Jackson.The effect of environmental acoustic noise on optical fiber based velocity and vibration sensor systems[J].Measurement Science and Technology,1994,5(4):412～417
16Sun Jiyong,Chen Weimin,Zhu Yonget al..An optic fiber Fabry-Pérot strain sensor systembased on tunable Fabry-Pérot[J].Laser Journal,2002,23(4):49～50孙吉勇,陈伟民,朱永等.基于可调谐法-珀腔解调的光纤法-珀应变传感系统[J].激光杂志,2002,23(4):49～50
17Wang Yong,Liao Yanbiao,Tian Qian.Signal analysis of wavelength scanning interferometry for absolute distance measurement[J].Acta Optica Sinica,1999,19(4):544～551王勇,廖延彪,田芊.用于绝对距离测量的波长扫描干涉仪信号分析[J].光学学报,1999,19(4):544～551
18Chen Weimin,Zhu Yong,Tang Xiaochuet al..Study on the serial multiplex of optical fiber Fabry-Pérot strain sensors with Fourier transform[J].Acta Optica Sinica,2004,24(11):1481～1486陈伟民,朱永,唐晓初等.光纤法布里珀罗传感器串连复用的傅里叶变换解调方法初探[J].光学学报,2004,24(11):1481～1486
19Chen Yusen.Algorithms and Multiplexing of Fiber Fabry-Pérot strain Sensor[D].Chongqing:Chongqing University,2003.16～20陈雨森.光纤法-珀应变传感器的解调算法改进和复用技术研究[D].重庆:重庆大学,2003.16～20
20Zhang Peng.Study on Transform Demodulation Theory of Optical Fiber Fabry-Pérot Sensor and Implementation of Embedded System[D].Chongqing:Chongqing University,2005.42～48章鹏.光纤法-珀传感器非扫描式相关变换解调原理研究及嵌入式系统实现[D].重庆:重庆大学,2005.42～48
21C.Belleville,G.Duplain.Fabry-Pérot optical sensing device for measuring a physical parameter[P].US.5,202,9391993
22Wang Yanhua,Liu Yan,Tan Zhongweiet al..Modified rouard method for fiber Bragg grating Fabry-Pérot cavity[J].Acta Optica Sinica,2008,28(5):840～845王燕花,刘艳,谭中伟等.用于光纤布拉格光栅法布里-珀罗腔的改进的Rouard算法[J].光学学报,2008,28(5):840～845
23Ma Jichi,Li Yan,Sun Wenkeet al..Fabry-Pérot interferometer using tunable diode laser[J].Acta Optica Sinica,2008,28(7):1296～1300马骥驰,李岩,孙文科等.可调波长半导体激光法布里-珀罗干涉仪[J].光学学报,2008,28(7):1296～1300
24Wu Jing,Wang Ming.Application of radial basis function networkin demodulation of Fabry-Pérot pressure sensor[J].Chinese J.Lasers,2009,36(5):1145～1149吴婧,王鸣.径向基函数神经网络在光纤法布里-珀罗传感器解调中的应用[J].中国激光,2009,36(5):1145～1149
25Rao Yunjiang,Deng Ming,Zhu Tao.Visibility-enhanced in-line Fabry-Pérot interferometers by the use of femtosecond lasers[J].Chinese J.Lasers,2009,36(6):1459～1462饶云江,邓明,朱涛.飞秒激光加工的高对比度法布里-珀罗干涉传感器[J].中国激光,2009,36(6):1459～1462
26Tang Caijie,Jiang Yi.High-finesse micro-lens optical fiber Fabry-Pérot interferometers[J].Acta Optica Sinica,2009,29(4):1062～1065唐才杰,江毅.高精细度微透镜光纤法布里-珀罗干涉仪[J].光学学报,2009,29(4):1062～1065
27C.Belleville,G.Duplain.White-light interferometric multimode fiber-optic strain sensor[J].Opt.Lett.,1993,18(1):78～80
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