【摘要】 提出了一种新型PZT的动态调制光纤光栅应变力测量技术。把光谱仪对峰值波长移动的测量改变为示波器对峰值光功率时间间隔的测量 ,并对这种技术进行了理论分析和实验研究。用交变电压调制固定在光纤光栅上的PZT ,同时对施加在光栅上的应力进行测量。实践证明 ,测光脉冲时间间隔法与光谱峰值移动法的测量结果相同 ,而且两者与理论计算结果相符更多还原

【Abstract】 A new type technology of dynamic PZT modulation with fiber grating is proposed. It can change measure of wvelength shift with optical spectrum analyzes to count of optical power pulse detecting by oscilloscope. The technology is investigated theoretically and experimentally. The PZT is modulated by periodicity voltage and the fiber grating fixing on the it is also modulated by PZT. The measured resolutions in experiment are good agreement with ones in theory.更多还原