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Roller wave distortion can be visually observed in tempered and heat-strengthened glass. The heat treatment process can cause the glass to bow and warp, viewed as ripples or optical distortion of reflected images.
Zebra Boards Give Way to New Roller-Wave Gauges.pdf |
Strainoptics manufactures two basic types of manually operated roller-wave gauges, the "flat-bottom" type and the "3-point contact" design. Each can be used with test methods
published by the Glass Association of North America (GANA) and ASTM. |
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RWG-I and RWG-M Dial Gauges
Flat-bottom, Delrin-coated surface equipped with a dial indicator in inch (I) or metric (M) units. Measures peak-to-valley depth of the roller wave. Includes Excel software for easy compliance with new ASTM Test Method C1651-08. |
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NEW! RWG-DF Digital Flat-Bottom Gauge
Same as RWG-I and RWG-M, but with large LCD digital readout. Pushbutton zero setting and choice of inch or millimeter display. Includes Excel software for easy compliance with new ASTM Test Method C1651-08. | |
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RWG-D Digital "3-Point Contact" Gauge
Adjustable 3-point contact bottom surface equipped with a battery-powered digital micrometer indicator. Measures peak-to-valley depth of the roller wave to 0.01 mm (0.0005"). For 0.001 mm (0.00005") resolution, specify high-sensitivity model RWG-HS). Includes Excel software for easy compliance with new ASTM Test Method C1651-08. |
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RWG-LVDT Gauge
Transducer mounted on three-roller bearings with adjustable spacing. AC operated. Optional signal conditioner/display with peak and valley feature and analog output for plotter. |
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RWG-USB Input Tool and Remote
Cable for Direct-to-PC Data Entry |
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Accessory allows automatic direct entry of measured roller wave data into Excel or other spreadsheet programs using button on digital indicator or on remote cable. Works with RWG-D or RWG-DF gauges. Includes Excel software for easy compliance with new ASTM Test Method C1651-08. |
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