The purpose of the pixel correction of the vision measuring machine is to enable the computer to obtain the ratio of the object pixel measured by the vision measuring machine to the actual size. There are many customers who do not know how to calibrate the pixel of the vision measuring machine. Next, Chengli Technology will share with you the method of pixel calibration of the vision measuring machine.
1. Definition of pixel correction: it is to determine the correspondence between the pixel size of the display screen and the actual size.
2. The necessity of pixel correction:
① After installing the software, pixel correction must be performed before starting the measurement for the first time, otherwise the results measured by the vision measuring machine will be wrong.
② Each magnification of the lens corresponds to a pixel correction result, so pre-pixel correction must be performed for each used magnification.
③ After the camera components (such as: CCD or lens) of the vision measuring machine are replaced or disassembled, the pixel correction must also be performed again.
3. Pixel correction method:
① Four-circle correction: The method of moving the same standard circle to the four quadrants of the cross line in the image area for correction is called four-circle correction.
② Single circle correction: The method of moving a standard circle to the center of the screen in the image area for correction is called single circle correction.
4. Pixel correction operation method:
① Manual calibration: Manually move the standard circle and manually find the edge during calibration. This method is usually used for manual vision measuring machines.
② Automatic calibration: automatically move the standard circle and automatically find edges during calibration. This method is usually used in automatic vision measuring machines.
5. Pixel correction benchmark:
Please use the glass correction sheet we provide for pixel correction.
Post time: Jul-01-2022