The drk-7220 dust morphology dispersion tester combines traditional microscopic measurement methods with modern image technology. It is a dust analysis system that uses image methods for dust dispersion analysis and particle size measurement. It consists of an optical microscope and a digital CCD. Camera and dust dispersion processing and analysis software. The system uses a dedicated digital camera to shoot the dust image of the microscope and transmit it to the computer. The image is processed and analyzed by a dedicated dust dispersion processing and analysis software. It is intuitive, vivid, accurate, and has a wide test range. Technical parameter Measuring range: 1～3000 microns Maximum optical magnification: 1600 times Maximum resolution: 0.1 micron/pixel Accuracy error: <±3% (national standard material) Repeatability deviation: <±3% (national standard material) Data output: Dust dispersion test report Configuration parameters (configuration 1 domestic microscope) (configuration 2 imported microscope) Trinocular Biological Microscope: Plan Eyepiece: 10×, 16× Achromatic objective lens: 4×, 10×, 40×, 100× (oil) Total magnification: 40×-1600× Camera: 3 million pixel digital CCD (standard C-mount lens) Scope of application The degree of dust dispersion in the air of the mine operation site.