Patent ID: 9625509
Date: 2017-04-18
CPC Classifications: G01R

Claim:
1. A system for determining, in a non-destructive manner, structural characteristics of an electromagnetic energy shielding material during a manufacturing process thereof, the electromagnetic energy shielding material having a pair of spaced apart surfaces defining a thickness thereof, said system comprising: (a) a transmitting antenna device mounted at a distance from one of the pair of surfaces of the electromagnetic energy shielding material for a reciprocal linear movement across a width of the electromagnetic energy shielding material, said transmitting antenna device being connected to a source of the electromagnetic energy and operable to transmit waves of the electromagnetic energy through the thickness of the electromagnetic energy shielding material during said reciprocal linear movement; (b) a receiving antenna device mounted at a distance from an opposite one of the pair of surfaces of the electromagnetic energy shielding material for said reciprocal linear movement across the width of the electromagnetic energy shielding material, said receiving antenna device being aligned in a plane transverse to the pair of surfaces with said transmitting antenna device and operable to receive, during said reciprocal linear movement, said waves of electromagnetic energy being absorbed and attenuated by the electromagnetic energy shielding material; (c) a sensor and control assembly coupled to at least said receiving antenna device and operable to process one or more parameters of said attenuated waves of said electromagnetic energy and determine the structural characteristics of the electromagnetic energy shielding material; and (d) a means for moving said transmitting and said receiving antenna devices in said reciprocal linear movement.