INDEX 



711 



Foster, G. Carey 



calibration of slide wire, 178 

 comparison of nearly equal re- 

 sistances, 175 



determination of mutual induc- 

 tance in terms of capacity, 418 

 FREQUENCY METERS, PHASE ME- 

 TERS, POWER FACTOR INDICA- 

 TORS AND SYNCHROSCOPES 

 Chapter X, 530 



frequency meters, 546 



induction, Westinghouse, 



550 

 magnetic vane, Weston, 



551 

 resonating frequency meters, 



546 



General Electric Com- 

 pany, 546 

 Hartmann and Braun, 549 



G 



Galvanometer constant 

 denned, 3 



of coil of rectangular cross- 

 section, 13 



relation of galvanometer con- 

 stant to galvanometer 

 resistance, Thomson galva- 

 nometer, 16 

 Galvanometers 

 ballistic, 99 



D'Arsonval, or moving coil, 32 

 Einthoven, or string, 44 

 Julius suspension for galvanom- 

 eters, 49 

 motion of suspended system of 



galvanometer, 24 

 selection of, points to be con- 

 sidered, 48 



\ tangent galvanometer, 1 

 thermo, 46 



Thomson or Kelvin, 5 

 General Electric Co. 



ammeter, curve drawing, 555 

 ammeter, inclined coil, 71 



General Electric Co., demand indi- 

 cator 



type M 2 , 523 

 type W, 518 

 frequency meter, resonating, 



546 



power factor meter, 537 

 wattmeter, polyphase curve 



drawing, 557 

 wave meter, 621 

 Giebe speed regulator, 426 

 Graded coils for Thomson galvanom- 

 eter, 15 

 GRAPHIC RECORDING OR CURVE 



DRAWING INSTRUMENTS 

 Chapter XI, 552 

 arrangements to minimize 

 effects of pen friction, 556 

 direct acting instruments 

 Bristol curve drawing am- 

 meter, 553 



General Electric curve 



drawing ammeters, 555 



General Electric polyphase 



watt-meter, 557 

 relay instruments 



Arconi, curve drawing 



wattmeter, 558 

 Westinghouse, curve draw- 

 ing voltmeter, 558 

 uses of, 552 

 Grassot fluxmeter, 124 

 Grounds, location of, 672 



H 



Hartmann and Braun 



ammeter, hot wire, 59 

 ammeter, high frequency, 69 

 frequency meter, 548 

 synchroscope, 543 

 voltmeter, hot wire, 241 



Heaviside, O., bridge, 410 



Helmholtz tangent galvanometer, 4 



Heydweiller 



method for determining mutual 

 inductance in terms of capac- 

 ity, 418 



