MAGXKTTC DI'SKIN" OK KIM.AVS 



71 



2 2 



105 a 



M02 



I O.OOI 0.002 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1 2 I 



\ RELUCTANCE, (Ho, IN CM-1 USE WITH RIGHT HAND SCALE '' 



'- USE WITH LEFT HAND SCALE POWER IN WATTS 



Fig. 29 — Work-j)0\ver relations in torms of magnetic and coil constants. 



(ft((/i). The latter is approximately proportional to(Ro , so the core section 

 a varies approximately as l/\/(3lo , and hence increases with increasing 

 ampere turn sensitivity as well as with increasing load. For values of U\ 

 near unity, where /(?/i) is nearly constant, a decreases as Hi increases. 



Power Scnsitinli/ 



The power sensitivity is the ratio of the work T done against the load 

 to the steady state power I'R. Fi-oni ('(luations (1) and (38), this is gi\(Mi 

 by: 



-^ = GcfMM, , 



(40) 



where e/p is a constant determined by the coil construction, S is the coil 

 vohmie, and m the mean length of turn. Depending on the coil depth 



