Abstract: The present invention relates to a device for the detection and measurement of the physical-chemical features of materials in the form of sheets comprising a microwave sensor coupled to a passive reflector on the other side of the material to be measured. The invention further comprises calculation methods and algorithms for processing output data, adapted to make the measurement immune from the typical environmental factors of industrial environments.

Abstract: An apparatus for controlling safety and preventing accidents at the workplace comprising: a plurality of RF transceivers (11), each associated with either a garment or an accessory or an instrument to be used by an operator when engaged in an area of concern, a plurality of illuminating actuators (12, 14, 16) and receivers (13, 15, 17), each of which associated with either the apparatuses or the structures or parts thereof arranged in said area of concern, said RF transceivers (11) being configured to form a network of PAN or BAN type, and comprising at least one RF transceiver (10) configured as a MASTER of said PAN or BAN network, characterized in that at least one of said RF transceivers comprises a dual-frequency controlled RFID transmitter device (10).