. Practical wireless telegraphy; a complete text book for students of radio communication . the loop A, B, are acted upon equally and at the same instant when its plane is at a rightangle to the plane of the advancing wave. Equal and opposing electromotive forces will, there-fore, be induced in both legs, resulting in no flow of current. If, however, the loop A, B, is acted upon at any other angle than a right angle, an elec-tromotive force will beinduced, the intensity ofwhich varies as the co-sine of the angle whicht h e advancing fluxmakes with the loop. The description justgiven does not t
. Practical wireless telegraphy; a complete text book for students of radio communication . the loop A, B, are acted upon equally and at the same instant when its plane is at a rightangle to the plane of the advancing wave. Equal and opposing electromotive forces will, there-fore, be induced in both legs, resulting in no flow of current. If, however, the loop A, B, is acted upon at any other angle than a right angle, an elec-tromotive force will beinduced, the intensity ofwhich varies as the co-sine of the angle whicht h e advancing fluxmakes with the loop. The description justgiven does not take intoaccount the phenomenainvolved when bothloops are employed andthe consequent effect onthe goniometer coil. Thiswill be explained in alater paragraph. Weshall first proceed to adescription of the direc-tion finder complete. 207. The CircuitComplete. — Carefulinspection should bemade of the diagram ofconnections in Fig. triangular loopaerial, A, B, is connectedin series with the vari-able condenser K and tothe excitation coil loop aerial C, D, isThe condensers K and. Fig. 271—The Triangular Aerial EmployedDirection Finder. Connection With the connected in series with condenser K-1 and the excitation coil L-1. K-1 have identical values of capacity and their capacities are altered simultaneously by a handle mounted on the top of the box as shown in Fig. 267. ■il* flffWfff ^^ff ■ rjRiww f //^ 11 fCj^^ 1 wM i^B> ^ lIlliH i ; ; E K
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
