Development of a Calibration Device for Laser-Plumb Instrument based on Theodolite Verification Device
The structure and characteristics of a laser-Plumb instrument accuracy calibration device based on JQJY model theodolite verification device.The device introduces the parallel light tube of the original theodolite detector by using industrial camera,spectroprism and neutral density filter,and prepares the corresponding image processing software to realize automatic positioning of cross di-vision line&laser circular spot center coordinate.Finally,the indoor calibration effect of the verti-cal alignment meter is achieved.
laser-Plumb instrumentindustrial cameraneutral density filterprecise angle divid-ing tableimage processing