Title : 
Sheet and plated-metal measurements
         
        
            Author : 
Yates, W. A. ; Queen, J. L.
         
        
            Author_Institution : 
National Bureau of Standards, Washington, D. C.; ACF Electronics, Alexandria, Va.
         
        
        
        
        
        
        
            Abstract : 
IN THE FIELD of metal thickness and nondestructive plating depth measurement some need exists for a non-contacting instrument suitable for the continuous inspection of samples in motion. This article describes the basic operation of a direct reading instrument of this type for nonmagnetic metals.
         
        
            Keywords : 
Conductivity; Phosphors; Probes; Silver; Transducers;
         
        
        
            Journal_Title : 
Electrical Engineering
         
        
        
        
        
            DOI : 
10.1109/EE.1954.6439011