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Abstract

Correlating on-line scanning sensor readings to laboratory test results for the verification of accuracy and repeatability can be facilitated by changing the scanning parameters of the scanner so that it only scans a small portion of the sheet that is to be sampled. This feature makes the sensor's mini-scan readings more relevant and more likely to be a repeatable result. The entire dynamic correlation process achieves more reliable results in a shorter length of time. A technique of operating a continuous sheet making system that includes actuators and a downstream scanning sensor, includes: (a) measuring a sheet physical characteristic of the continuous sheet with the scanning sensor and displaying a cross directional profile of the measurements; (b) selecting a cross directional region within the profile; and (c) measuring the sheet physical characteristic with the scanning sensor within the region. The results from the mini-scanned are compared to laboratory analyses.

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First Claim