The article touches upon the principle of displacement measuring system consisting of diode laser focusinglens, reflecting main scale grating, quarternary index scale grating photosensor.
系统由半导体激光器、聚焦镜头、反射式标尺光栅、四裂相指示光栅和光电接收元件组成。
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In this paper, the specialized techniques of electron gun for large screen CPTs are discussed. The beam forming region, mainlens, convergence lens system and dynamic focusing method are analyzed.
Comparison of the focusing results of a hot atomic beam with a monochromatic cold atomic beam shows that the main factor affecting the imaging quality of the magnetic lens is chromatic aberration.