X-ray Thickness gauge
Measurement is implemented by means of the physical law that describes the absorption of an X-ray beam by a slab of given material with given thickness. After the absorption process, the remaining energy is measured by a sensor and converted into an electric current which is related to the thickness of the material. The sensor used to detect the X-ray radiation produces a current signal proportional to the number of photons captured by the device. This signal is conditioned and digitalized, then processed using a proprietary algorithm to obtain the correct thickness value.