Patent ID: 9261351
Filing Date: 2016-02-16
CPC Classification: G01B

Claim Text:
1. A method for operating a chromatic range sensor (CRS) system to perform a workpiece height measurement of a low reflectivity workpiece surface, the method comprising: providing a CRS that provides a valid wavelength peak throughout a nominal total measurement range that is uninterrupted between nominal upper and lower measurement range limits when operated using an exposure time that is within a first nominal range of exposure times; operating the CRS using a self-saturating exposure time that is longer than exposure times in the first nominal range of exposure times, wherein: providing on a user interface portion of the CRS an indication of at least one of (a) a height measurement for a workpiece surface based on using the self-saturating exposure time, and (b) valid peak measurement positions included in the valid subset of the nominal total measurement range that corresponds to using the self-saturating exposure time.