The image measuring instrument uses its own hardware (CCD, eyepiece, objective data line) to transmit the captured image to the data acquisition card of the computer through the data line, and then the software displays the image on the computer monitor, and the operator uses the mouse. Make quick measurements on your computer. The above process is basically completed in tens of thousands of seconds, so it can be regarded as a real-time detection device, or a narrow point can be called a dynamic measurement device. If the configuration is satisfactory, the device will never produce image lag. Due to the size of the workpiece, the workbench can choose different strokes. The brightness of the light source is adjustable, and the most suitable light source brightness can be selected under various lighting conditions.