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压电技术在逆向识别系统中的应用
引用本文:王静,王亚非,高椿明,周鹰,王占平.压电技术在逆向识别系统中的应用[J].无损检测,2011(12):36-39.
作者姓名:王静  王亚非  高椿明  周鹰  王占平
作者单位:电子科技大学光电信息学院,成都610054
摘    要:压电技术不仅能被广泛地应用于无损检测技术领域,还能被用在声光逆向调制技术中。文章开展了对压电型猫眼逆向识别系统的理论和试验研究。首先,建立了猫眼逆向器的等效数学模型,通过仿真研究,分析了系统作用距离、透镜焦距和探测器面积对反射光能量的影响l其次,建立了压电猫眼逆向识别的试验系统,通过初步的试验研究,实现了对简单信号的传输和识别。该系统的信息传输速度为600bit/s。

关 键 词:身份识别技术  压电技术  猫眼逆向器

Applications of Piezoelectric Technology in Retro-Identification System
WANG Jing,WANG Ya-Fei,GAO Chun-Ming,ZHOU Ying,WANG Zhan-Ping.Applications of Piezoelectric Technology in Retro-Identification System[J].Nondestructive Testing,2011(12):36-39.
Authors:WANG Jing  WANG Ya-Fei  GAO Chun-Ming  ZHOU Ying  WANG Zhan-Ping
Affiliation:(School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China)
Abstract:Piezoelectric technology is wildly used in nondestructive testing technology, and especially it also can be used in acousto-optic retro-identification technology. Theoretical analysis and experimental research of a piezoelectric cat's eye retro-identification{ PCERI) system were carried out. Firstly, an equivalent mathematical model of the cat's eye modulating retro-reflector(MRR) was set up, then the influence of the optical indexes to the reflected intensity was calculated, including the distance between the interrogator and the MRR, the focal length of the lens and the detector diameter. Secondly, a PCERI system was built up, by which the transmission and identification of simple information were achieved by experiment. The information transmission speed of PCERI was 600 bit/s, which could meet the requirements of identification.
Keywords:Identification technology  Piezoelectric technology  Cat's eye MRR
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