Using Optical Calibration Standard Certification Data

During the optics calibration of a vision probe, if a certification data file (fovcert.dat) exists in the probe directory, PC-DMIS reads the file and uses it to adjust the calibration data from the nominal. A fovcert.dat file supports data for these:

• The X and Y size of the concentric rectangles

• The X and Y center positions of the concentric circles

Information about the fovcert.dat File

• The first line must be the file schema number.

• A semicolon at the start of a line denotes that the line is a comment.

• Comment lines may not start with a space character.

• The [PATTERN] value is a hex bitmask that denotes the rectangle edges to be measured in X and Y. The position of the edges is from left to right and from top to bottom. For example, a value of 0xAA hex is 1010 1010 binary. This translates to use the first and third edges in the X direction and the first and third edges in the Y direction for rectangle measurement.

• All values are in mm.