A new demodulation method of fiber Bragg grating (FBG) sensing signal, which is by making use of the monotonic decline section of an amplified spontaneous emission (ASE) light source, is proposed.
提出一种利用放大的自发辐射(ase)光源的单调下降边带对光栅光纤传感器进行解调的新方法。
Aiming at the deep hole detection, the method of ring light section is introduced and its principle is analyzed.
针对深孔内膛的检测，对环形光切的测量方法进行了介绍，对其测量原理进行了分析。
By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam.
采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。
After analyzing current three-dimension measuring methods, a new method is proposed on the basis of light-section and image scanning.
在分析现有各种三维测量方法的基础上，提出了基于光切图像扫描法的三维测量方法。
An image detection method based on the ring light section method was developed to measure deep holes with complex surfaces, especially rifled gun barrels.
针对膛线炮身管提出了一种基于环形光切的图像检测方法。
The theory of measuring surface roughness by using light-section microscope is described, and a simple method to measure the Angle of complicated small-scale tool is introduced.
阐述了光切显微镜测量表面粗糙度的原理以及如何利用该原理测量小尺寸复杂刀具角度的方法。
Method: To take 42 embryos aborted inducedly for some reason and wrap up the inner ears with paraffin wax. Then do serial section and observe them with light microscope.
方法：取因故人工流产的胚胎42例，将内耳作石蜡包埋，连续切片，光镜观察。
Method: To take 42 embryos aborted inducedly for some reason and wrap up the inner ears with paraffin wax. Then do serial section and observe them with light microscope.
方法：取因故人工流产的胚胎42例，将内耳作石蜡包埋，连续切片，光镜观察。
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