| 摘要 |
FIELD: physics. ^ SUBSTANCE: device for monitoring of spacer grids contains the following elements that are serially installed on optical axis: source of coherent radiation, shaper of structural lighting, device of spacer grid positioning and photo-receiving module, which includes lens and photo-receiving chamber with matrix photodetector, which is connected with unit of control and information processing, the control outlet of which is connected to positioning device. Shaper of structural lighting is arranged in the form of diffraction optical element on the basis of phase or/and amplitude microstructure on transparent wafer, which contains non-transparent area installed in the center of diffraction optical element, working field that shapes the system of light strips on the surface of monitored fragment of spacer grid, and alignment field that shapes two light rings of the same diameter as the working field, for alignment of photo-receiving module. ^ EFFECT: simplification of device design with simultaneous expansion of functional resources and increase of its fast-action. ^ 6 dwg |
