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用光纤光栅传感器研究压电陶瓷的特性

Piezoelectric Ceramic Characteristics Using Fiber Grating Sensor

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摘要

提出了一种利用光纤光栅传感器研究压电陶瓷特性的新方法.该方法采用非平衡Michelson扫描干涉仪对光纤光栅传感信号进行相位解调,通过观测波长漂移引起的相移,从而获得压电陶瓷的位移量与所加电压间的关系.实验分析了迟滞特性和蠕变现象,得到了压电陶瓷的电压位移特性曲线以及蠕变特性曲线.实验表明,光源功率的波动对压电陶瓷迟滞特性不能造成影响且压电陶瓷的蠕变特性与电压方向无关.

Abstract

A method for characteristics of piezoelectric ceramics was presented using a fiber Bragg grating sensor.An unbalanced Michelson interferometer was utilized to demodulate the fiber Bragg grating sensor signals.The relationship between the displacement of piezoelectric ceramic and the applied voltage was shown by observing the phaseshift induced by wavelengthshift.The hysteretic and creep properties of the piezoelectric ceramic were demonstrated experimentally,and the applied voltagedisplacement curve and the creep curve were obtained.The results show that the fluctuations of light power had no effect on hysteretic,and the voltage direction has nothing with creep.

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中图分类号:TP212.12

DOI:10.3788/gzxb20114007.0994

收稿日期:2011-02-23

修改稿日期:2011-03-01

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作者单位    点击查看

余有龙:合肥工业大学 仪器科学与光电工程学院,合肥 230009
谭玲:合肥工业大学 仪器科学与光电工程学院,合肥 230009
邹李刚:合肥工业大学 仪器科学与光电工程学院,合肥 230009
王浩:合肥工业大学 仪器科学与光电工程学院,合肥 230009

联系人作者:余有龙(youlongyu@163.com)

备注:余有龙(1965-),男,教授,博士,主要研究方向为光纤光栅传感器及网络化技术、光无源器件、光纤激光技术及其应用.

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