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NDC Infrared Engineering will showcase three new thickness measurement gauges for the extrusion industry at the K 2010 Show.

The company will highlight the revised FG710S NIR sensor, the TFG710S-ER (extended range) film gauge, and the Optimike Shadow LED sensor.

Already well established as an effective way to achieve true thickness measurement of clear and pigmented BOPP films of single or multilayer composition, the revised FG710S NIR sensor now has extended measurement capabilities to include voided BOPP films as well as micro-porous battery separator film using a single sensor.

Unlike beta or X-ray sensors, the FG710S measures thickness, not mass, of voided film, resulting in flat film and rolls.

Its optics and measurement algorithms mean that a single gauge can be used for all types of film, including PET, PP, PE, PS, PVC, EVOH, PA, Surlyn, PMMA and more, measuring up to four different product constituents simultaneously.

Without the re-standardisation, source replacement, special scanner tolerancing or sensor cooling/conditioning needed for nucleonic-based gauges and the added benefit of measuring all film types, the revised FG710S offers cost benefits, according to NDC.

The TFG710S-ER (extended range) film gauge has been engineered specifically for measuring a range of polyolefin-based films on lines where multiple thickness ranges are produced.

This versatile sensor uses a patented design, which is claimed to achieve a new level in on-line measurement speed, accuracy and performance, even on films less than 2-microns thick.

Unlike the nucleonic alternatives, they are not affected by humidity, barometric pressure, gap temperature or airborne dust.

They require no re-standardisation and can be fitted to standard scanning systems.

The TFG710ER is ideal for assisting processors who are trying to down-gauge below 10 microns.

Also on show is the Optimike Shadow LED sensor, which allows direct, single-sided thickness measurement of plastic sheet, foam and rubber products.

Unlike laser triangulation gauges, it is insensitive to surface characteristics, colour or porosity.

NDC Infrared Engineering

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