534 



^i^ = _^ (12) 



■^ = _^ (13) 



I>B2 kB2 



These two damage ratios will genersLLly be vmequal, due to the different 

 physical properties of the two diaphragm materials. 



However, the two explosives may be crairpared according to other 

 criteria in which the result will be independent of the diaphragm 

 material if the ratio between m and n is independent of the diaphragm 

 material. For example, different weights of the two explosives may be 

 chosen so that equal damages will be produced at a given charge-to-gauge 

 distance, or the same weight of each explosive may be fired at different 

 distances so chosen that equeil damages will be produced. In either case. 

 Equations (8) and (9) combine to give 



and EquatiOEP (lO) and (ll) result in 



If the experiment has been conducted with d^ and dg^ the same, and with 

 dy^ and dgg the same, then equivalent weight ratios for the two explosives 

 are determined: 



^Al 

 Wfil 



(-^) 



(16) 



(17) 



