Optical Glass Metrology â Techniques / Limitations - Owens Design

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Detection of the Glass Plate Interface - material tilting tolerance : SICK AG: : BU02 side session: high end displacement : Name (Date) 8
Glass Thickness Measurement with one OD-Precision Sensorhead Photos of the light distribution Monitor: Glassplate with distance to the background : OK •Sharp two Peaks of the glassplate visible •Third peak of the background visible •Two red lines to measure the distance inbetween (first two from the left) •Peaks clearly over the blue threshold line NOK •Sharp two Peaks of the glassplate visible •Third peak of the background visible •Only one red line of the backside edge of the glassNo thickness measurement possible because first edge is out of range •Peaks clearly over the blue threshold line : SICK AG: : BU02 side session: high end displacement : Name (Date) 9
Page 1 and 2: Optical Glass Metrology - Technique
Page 3 and 4: Limitations of Optical Measurement
Page 5 and 6: Laser Triangulation Advantages : Si
Page 7: Detection of the Glass Plates Inter
Page 11 and 12: LaserScanner with rotating Mirror D
Page 13 and 14: Confocal Laser Point Sensor : SICK
Page 15 and 16: Chromatic Confocal Measurement : SI
Page 17 and 18: Principle of operation of an AutoFo
Page 19: : Thank you for your attention.

Optical Glass Metrology â Techniques / Limitations - Owens Design

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Optical Glass Metrology â Techniques / Limitations - Owens Design