Basis weight sensor Gravimat FMI

The Beta-Sensor determines basis weight and thickness by the attenuation of radioactive rays through the substrate located in the measuring gap.

Transmission of beta rays

The weight monitoring and control system measures the weight continuously, without contact, destruction-free and on moving product. The measurement is based on the attenuation of rays from a radioactive isotope through the substrate located in the measuring gap. This attenuation in intensity is an indication of the weight of the product.

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