two-hole grating 两孔光栅 ; 双激光器
small hole grating 小孔格栅
laser-induced holographic grating hole-burning technology 激光诱导全息光栅技术
For eliminating the errors in deformation measuring and improving the accuracy in hole-drilling method, this paper presented an optical technique, grating rosette and moire interferometry.
针对钻孔法测量残余应力方法中变形测量存在的误差，提出用光栅应变花测量钻孔所释放的残余应变。
Based on the Fresnel diffraction of the round hole, the Fresnel diffraction oft he circular grating is discussed. The computer simulations of the diffraction in tensity distributions is given.
在圆孔的菲涅耳衍射的基础上，讨论环形光栅的菲涅耳衍射，并给出了计算机仿真结果。
The research results of a novel kind of side hole fiber and side hole fiber grating are reported.
报导了一种新型边孔光纤及边孔光纤光栅的研究结果。
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