基于双悬臂梁结构的光纤加速度传感器
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摘要
为消除悬臂梁结构加速度传感器由于光纤表面粘贴产生的啁啾现象,增强横向抗干扰能力,提高共振频率,提出了一种基于双悬臂梁结构的光纤加速度传感器。给出了理论分析结果,建立了有限元模型,得到了加速度灵敏度表达式,并且探讨了在共振频率不变的情况下提高加速度灵敏度的方法。实验结果表明,该传感器在6～50 Hz内频响平坦,加速度灵敏度为14pm/g,抗横向干扰能力达20dB,与理论计算较好地吻合。
A novel fiber accelerometer based on double-cantilever structure is presented in this paper.The accelerometer can eliminate the chirp effects casued by glue,reduce the transverse response and increase the natural frequency.Theoretical analysis is given and the finite element method is used.A method to enhance the sensitivity without reducing the resonant frequency is also proposed.The experimental results show a flat frequency response from 6 Hz to 50 Hz,a sensitivity of 14 pm/g and a directivity of better than 20 dB,which agree well with the theoretical analysis.
A novel fiber accelerometer based on double-cantilever structure is presented in this paper.The accelerometer can eliminate the chirp effects casued by glue,reduce the transverse response and increase the natural frequency.Theoretical analysis is given and the finite element method is used.A method to enhance the sensitivity without reducing the resonant frequency is also proposed.The experimental results show a flat frequency response from 6 Hz to 50 Hz,a sensitivity of 14 pm/g and a directivity of better than 20 dB,which agree well with the theoretical analysis.
引文
[1]QIN Fu-Xiang,LI Hong-gang,FAN Wan-de.Experimentalstudy on vibration frequency response of micro-bend op-tic-fiber sensor[J].Chinese Optics Letters,2009,7(7):556-559.
[2]LI Lan,DONG Xin-Yong,ZHOU Chun-Liu,et al.A temper-ature-independent fiber Bragg grating accelerometer[J].Journal of Optoelectronics.Laser,2010,21(11):1618-1620.李岚,董新永,赵春柳,等.一种对温度不敏感的光纤布拉格光栅加速度计[J].光电子.激光,2010,21(11):1618-1620.
[3]LI Xue-cheng,LIU Su,ZHANG Wen-tao,et al.Study onlow frequency characteristic of double-diaphragm fiberBragg grating geophone[J].Journal of Optoelectronics.Laser,2010,21(4):529-532.李学成,刘肃,张文涛,等.双膜片结构光纤光栅地震检波器低频特性的研究[J].光电子.激光,2010,21(4):529-532.
[4]Todd M D,Johnson G A,Althouse B A,et al.Flexuralbeam-based fiber Bragg grating accelerometers[J].IEEEPhotonics Technology Letters,1998,(11):1605-1607.
[5]DAI Feng,HUANG Guo-Jun.An acceleration sensor basedon fiber Bragg gratings[J].Laser Journal,2005,26(1):26-27.戴锋,黄国君.一种布拉格光纤光栅加速度传感器[J].激光杂志.2005,26(1):26-27.
[6]LI Chuan,LUO Zhong-fu,LI Ying-na,et al.Fiber Bragggrating low frequency accelerometer with uniform strengthcantilever beam[J].Instrument Technique and Sensor,2010,4:42-43.李川,罗忠富,李英娜,等.基于等强度悬臂梁的光纤Bragg光栅低频加速度传感器[J].仪表技术与传感器,2010,4:42-43.
[7]SHI Cui-hua,ZHU Tao,RAO Yun-jiang,et al.Fiber opticaccelerometer based on long period fiber grating inducedby CO laser pulses[J].Microwave and Optical Technolo-gy Letters,2011,53(4):841-845.
[8]Akira Mita Isamu Yokoi.Fiber Bragg Grating accelerome-ter for structural health monitoring[A].Fifth InternationalConference on Motion and Vibration Control(MOVIC2000)[C].2000,4-8.
[9]SUN Ru-jiao,SUN Li-min,SUN Zhi,et al.Design researchof fiber Bragg grating acelerometer[J].Acta PhotonicaSinica,2007,36(1):63-67.孙汝蛟,孙利民,孙智,等.一种新型光纤光栅布喇格光栅振动传感器研究[J].光子学报.2007,36(1):63-67.
[10]LI Shan-yuan,JIANG Dong-qing,LIANG Lei.Research ondynamic characteristic of fiber Bragg grating accelerome-ter[J].Journal of WUHAN University of Technology,2008,30(12):118-120.厉善元,蒋冬青,梁磊.新型光纤光栅加速度传感器动态特性的研究[J].武汉理工大学学报,2008,30(12):118-120.
[11]Paulo Fernando da Costa Antunes,Hugo F T Lima,NéliaJord¨ao Alberto,et al.Optical fiber accelerometer systemfor structural dynamic monitoring[J].IEEE Sensors Jour-nal,2009,9(11):1347-1354.
[12]WANG Jian-hua.A concrete strain gauge on double-canti-lever[P].Chinese:CN2669133Y.2005-1-15.王建华.双悬臂梁混凝土结构应变测量计[P].中国专利:CN2669133Y.2005-1-15.
[13]LIU Qin-peng,QIAO Xue-guang,ZHAO Jian-lin,et al.Low-frequency FBG accelerometer based on double can-tilever beam[J].Journal of Optoelectronics.Laser,2011,22(8):1119-1123.刘钦朋,乔学光,赵建林,等.双悬梁光纤布拉格光栅低频加速度传感器[J].光电子.激光,2011,22(8):1119-1123.
[14]ZHANG Wen-tao,LI Xue-cheng,ZHANG Fa-xiang,et al.Underwater fiber laser geophone:theory and experiment[A].Proc.of SPIE[C].Shanghai,China:2009,1-2.
[15]SUN Xun-fang,FANG Xiao-shu,GUAN Tai-lai,et al.Me-chanics of Materials(Ⅰ)[M].Beijing:Higer EducationPress,2002,164-167.孙训方,方孝淑,关泰来,等.材料力学(Ⅰ)[M].北京:高等教育出版社,2002,164-167.
[16]GU Hai-ming,ZHOU Yong-jun.Theory and applications ofmechanical vibration[M].Nanjing:Southeast UniversityPress,2007,14-20.顾海明,周勇军.机械振动理论与应用[M].南京:东南大学出版社,2007,14-20.
[17]Morey W W,Meltz G,Glenn W H.Fiber optic Bragg grat-ing sensors[A].Proc.of SPIE[C].1989,98-107.
[18]ZHANG Wen-tao,LI Fang,LIU Yu-liang,et al.Fiber Bragggrating accelerometers based on the Interference degreeof cantilever beam[P].Chinese:CN 101285846A.2008-10-15.张文涛,李芳,刘育梁.基于悬臂梁扰度的光纤光栅加速度计[P].中国专利:CN101285846A.2008-10-15.
[2]LI Lan,DONG Xin-Yong,ZHOU Chun-Liu,et al.A temper-ature-independent fiber Bragg grating accelerometer[J].Journal of Optoelectronics.Laser,2010,21(11):1618-1620.李岚,董新永,赵春柳,等.一种对温度不敏感的光纤布拉格光栅加速度计[J].光电子.激光,2010,21(11):1618-1620.
[3]LI Xue-cheng,LIU Su,ZHANG Wen-tao,et al.Study onlow frequency characteristic of double-diaphragm fiberBragg grating geophone[J].Journal of Optoelectronics.Laser,2010,21(4):529-532.李学成,刘肃,张文涛,等.双膜片结构光纤光栅地震检波器低频特性的研究[J].光电子.激光,2010,21(4):529-532.
[4]Todd M D,Johnson G A,Althouse B A,et al.Flexuralbeam-based fiber Bragg grating accelerometers[J].IEEEPhotonics Technology Letters,1998,(11):1605-1607.
[5]DAI Feng,HUANG Guo-Jun.An acceleration sensor basedon fiber Bragg gratings[J].Laser Journal,2005,26(1):26-27.戴锋,黄国君.一种布拉格光纤光栅加速度传感器[J].激光杂志.2005,26(1):26-27.
[6]LI Chuan,LUO Zhong-fu,LI Ying-na,et al.Fiber Bragggrating low frequency accelerometer with uniform strengthcantilever beam[J].Instrument Technique and Sensor,2010,4:42-43.李川,罗忠富,李英娜,等.基于等强度悬臂梁的光纤Bragg光栅低频加速度传感器[J].仪表技术与传感器,2010,4:42-43.
[7]SHI Cui-hua,ZHU Tao,RAO Yun-jiang,et al.Fiber opticaccelerometer based on long period fiber grating inducedby CO laser pulses[J].Microwave and Optical Technolo-gy Letters,2011,53(4):841-845.
[8]Akira Mita Isamu Yokoi.Fiber Bragg Grating accelerome-ter for structural health monitoring[A].Fifth InternationalConference on Motion and Vibration Control(MOVIC2000)[C].2000,4-8.
[9]SUN Ru-jiao,SUN Li-min,SUN Zhi,et al.Design researchof fiber Bragg grating acelerometer[J].Acta PhotonicaSinica,2007,36(1):63-67.孙汝蛟,孙利民,孙智,等.一种新型光纤光栅布喇格光栅振动传感器研究[J].光子学报.2007,36(1):63-67.
[10]LI Shan-yuan,JIANG Dong-qing,LIANG Lei.Research ondynamic characteristic of fiber Bragg grating accelerome-ter[J].Journal of WUHAN University of Technology,2008,30(12):118-120.厉善元,蒋冬青,梁磊.新型光纤光栅加速度传感器动态特性的研究[J].武汉理工大学学报,2008,30(12):118-120.
[11]Paulo Fernando da Costa Antunes,Hugo F T Lima,NéliaJord¨ao Alberto,et al.Optical fiber accelerometer systemfor structural dynamic monitoring[J].IEEE Sensors Jour-nal,2009,9(11):1347-1354.
[12]WANG Jian-hua.A concrete strain gauge on double-canti-lever[P].Chinese:CN2669133Y.2005-1-15.王建华.双悬臂梁混凝土结构应变测量计[P].中国专利:CN2669133Y.2005-1-15.
[13]LIU Qin-peng,QIAO Xue-guang,ZHAO Jian-lin,et al.Low-frequency FBG accelerometer based on double can-tilever beam[J].Journal of Optoelectronics.Laser,2011,22(8):1119-1123.刘钦朋,乔学光,赵建林,等.双悬梁光纤布拉格光栅低频加速度传感器[J].光电子.激光,2011,22(8):1119-1123.
[14]ZHANG Wen-tao,LI Xue-cheng,ZHANG Fa-xiang,et al.Underwater fiber laser geophone:theory and experiment[A].Proc.of SPIE[C].Shanghai,China:2009,1-2.
[15]SUN Xun-fang,FANG Xiao-shu,GUAN Tai-lai,et al.Me-chanics of Materials(Ⅰ)[M].Beijing:Higer EducationPress,2002,164-167.孙训方,方孝淑,关泰来,等.材料力学(Ⅰ)[M].北京:高等教育出版社,2002,164-167.
[16]GU Hai-ming,ZHOU Yong-jun.Theory and applications ofmechanical vibration[M].Nanjing:Southeast UniversityPress,2007,14-20.顾海明,周勇军.机械振动理论与应用[M].南京:东南大学出版社,2007,14-20.
[17]Morey W W,Meltz G,Glenn W H.Fiber optic Bragg grat-ing sensors[A].Proc.of SPIE[C].1989,98-107.
[18]ZHANG Wen-tao,LI Fang,LIU Yu-liang,et al.Fiber Bragggrating accelerometers based on the Interference degreeof cantilever beam[P].Chinese:CN 101285846A.2008-10-15.张文涛,李芳,刘育梁.基于悬臂梁扰度的光纤光栅加速度计[P].中国专利:CN101285846A.2008-10-15.
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