Title : 
Propagation of m.f. signals along mine tunnel containing an axial wire and water trough
         
        
        
            Author_Institution : 
Chamber of Mines of South Africa Research Organisation, Mining Technology Laboratory, Johannesburg, South Africa
         
        
        
        
        
        
        
            Abstract : 
Experimental work has produced data which allowed an accurate transmission line model of a mine tunnel containing an axial wire to be derived. The results obtained show good agreement with the theoretical analyses done by other workers in this field.
         
        
            Keywords : 
transmission line theory; axial wire; medium frequency signal propagation; mine tunnel; transmission line model; water trough;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19800593