A laser-triangulation distance-measuring sensor, used initially for inline monitoring of PVC window-profile shapes, can now measure embossing depth. Two months ago Bytewise Measurement Systems in Columbus, Ga., sold the first system to measure surface embossing of foamed PVC deck boards with acrylic capstock. Because the capstock provides both UV protection and a cosmetic surface, embossing too deeply presents a risk of premature aging, while too-shallow embossing creates a visual quality defect. Uneven embossing depth makes profile color appear to vary because of different shadows. The sensor projects a line of laser light across the embossed surface, which reflects the light through a lens onto a CCD detector. The detector captures embossing depths and displays them on the operator screen. Resolution is much higher (0.00004 in.) than Bytewise’s standard QC device for measuring profile shape (0.004 in. resolution). The initial embossing QC system is used off-line, but it could be used to check a 1-in.-wide area of profile in-line. (706) 323-5142 • www.bytewise.co
Bytewise Measurement Systems
1150 Brookstone Centre Pkwy. Columbus, GA 31904
Phone (706) 323-5142 Fax (706) 323-0178
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