基于频谱校正技术的光学相干振动和热变形层析系统研究

南京大学学报(自然科学版) ›› 2014, Vol. 50 ›› Issue (2): 167–.

基于频谱校正技术的光学相干振动和热变形层析系统研究

陈丹阳1，张秋坤2，钟剑锋2，郭金泉2，钟舜聪2,3*，沈耀春5，姚立纲2

出版日期:2014-04-07 发布日期:2014-04-07
作者简介:(1. 漳州职业技术学院,漳州,363000;2. 福州大学机械工程及自动化学院,福州,350108; 3. 华东理工大学承压系统安全科学教育部重点实验室,上海,200237; 4. 福建省医疗器械和医药技术重点实验室,福州,350000; 5. 英国利物浦大学电气电子工程系,英国 L69 3GJ
基金资助:
国家自然科学基金项目(51005077),福建省杰出青年基金项目(2011J06020),福州大学人才基金项目(XRC-1024),教育部高等学校博士学科点科研基金（博导类）（20133514110008）,国家卫生和计划生育委员会科研基金项目,国家质检总局项目,承压系统与安全教育部重点实验室开放基金,教育部回国留学人员启动基金项目(教外司留[2008] 890号),福建省质量技术监督局项目(FJQI2009039,FJQI201014)

Enhanced optical coherence tomography for vibration and thermal deformation measurement based on spectrum correction technique

Chen Danyang1, Zhang Qiukun2, Zhong Jianfeng2, Guo Jinquan2, Zhong Shuncong2,3,4, Shen Yaochun5, Yao Ligang2

Online:2014-04-07 Published:2014-04-07
About author:(1. Zhangzhou Institute of Technology, Zhangzhou,363000, China; 2. School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108,China; 3. Key Laboratory of Safety Science of Pressurized System of Ministry of Education, Shanghai, 200237,China; 4. Fujian Key Lab of Medical Instrument and Pharmaceutical Technology, Fuzhou, 350000,China; 5. Department of Electrical Engineering and Electrical Engineering, University of Liverpool, UK L69 3GJ)

摘要/Abstract

摘要： 本文提出采用基于频谱校正技术的增强型频域光学相干层析系统（EOCT）EOCT系统采用基于CCD的宽带光谱仪以及宽带低相干的白光，所以这个增强型光学相干层析系统具有很高的检测分辨率，可达到0.9微米精度。但是，由于光谱信号作傅里叶变换的过程中产生了能量泄露，从而导致振动或热变形检测存在一定程度的误差。为了解决这个问题，本文提出采用一种频谱校正技术来校正此误差。从振动、热变形以及压电驱动器标定等实验的结果可知该方法的检测精度最高可达0.1微米。因此，自研制的EOCT系统在非接触振动、热变形测量以及压电驱动器在线标定等领域具有很好的应用前景。

Abstract: An enhanced Fourier-domain optical coherence tomography (EOCT) based on spectrum correction technique is developed and employed in non-contact measurement of structural vibration and thermal deformation, and real-time calibration of PZT actuators. The EOCT system used a broadband CCD-based spectrometer and a short-coherence white light source. Due to the broadband of the spectrometer and light source, the system provided high robust performance with an excellent measurement resolution of 0.9. Because of the energy leakage effect of FFT, a spectrum correction technique was employed to enhance the resolution of the EOCT system. The detection resolution for vibration and thermal deformation measurement could be up to 0.1. From the experimental results, the self-developed EOCT has great potential applications in non-contact structural vibration, thermal deformation measurement, and real-time calibration of PZT actuators

陈丹阳1，张秋坤2，钟剑锋2，郭金泉2，钟舜聪2,3*，沈耀春5，姚立纲2. 基于频谱校正技术的光学相干振动和热变形层析系统研究[J]. 南京大学学报(自然科学版), 2014, 50(2): 167–.

Chen Danyang1, Zhang Qiukun2, Zhong Jianfeng2, Guo Jinquan2, Zhong Shuncong2,3,4, Shen Yaochun5, Yao Ligang2. Enhanced optical coherence tomography for vibration and thermal deformation measurement based on spectrum correction technique[J]. Journal of Nanjing University(Natural Sciences), 2014, 50(2): 167–.

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