What is gap compensation?
The intrinsic characteristic of the machine tool is the reaction. The space in the joint between adhesion, friction and elasticity and rotating machinery is the result of it, such as the ball screw. We compensate the fpc4 scanner, in the X and Y direction, and we are opposed to a consistent method. Fpc4 assembles a Mosaic of the capture algorithm always such that it is always close to each photograph and positive X and Y axis movement so that the machine can be rebound from fpc5 can be effectively isolated
We can look at figure 8. What is the gap compensation algorithm?
In figure 9. By reducing the field of view, the numerical control scanner simulates a distant lens system and improves the orthographic property of the image. This can be seen from improved splicing, especially those features, above or below the focal plane.
Calibrate the image with the numerical control motion.
Usually, we calibrate the image by placing a reference scale in the image field.
However, the unique fpc2 scanner, if you want to scale the image, can be achieved through the movement of the CNC mill. During execution, this method is simpler and more accurate because the resolution is equal to the resolution of the mill.
When the scan object is not convenient to place the reference scale, it is particularly convenient to move the zoom, only the recognition point feature is needed. We know that this could be a corner, a center of a hole, or even a bit of corrosion or abrasion on the surface of the object.
We can also measure the angular error by means of motion, and the effect can be automatically corrected in each image
Let’s look at figure 10. When calibrating the image size we use known linear dimensions.
Figure 11. The calibration of our image scale is accomplished by the precision mechanical movement. And identifiable point moving distance is within the microscope’s field of view of mobile Δ X Y is a known distance. The position change and the actual motion of the machine are both observed by the fpc2 scanner and used to determine the scale.