Measuring Heads
For all coating machines the basic measurement required is the coated Weight of the material which can be Zinc, Aluminum or the Paint coats. The measurement is displayed as GSM (or g/m2) which is the basic parameter the operators use to ensure that their production is always with in the acceptable weight range. The measuring principle is based on the Florescence produced by reflection from the measuring material on which radiation emitted by the X-ray source is projected. The coating weight is determined by sensing variations in the energy radiated by the surface of the measured and known pure form of sample value.
Both sensing head contains source and the detector each, which ride above the moving sheet without any friction mounted on air bearings of special patented design maintaining an ultra stable cushion gap thickness thus providing accuracy level of that of contacting sensors but without contact type problems.
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