. The Bell System technical journal . (f) (9) INDUCTIVECOUPLING Fig. 9—A diatomic molecule and some mechanical and electrical analogues. (a) The potential energy of an electron for points on a line through the two nuclei. (b) and (c) Values of two wave functions for points on the same line. (d) Two coupled oscillators. (e) and (f) Their normal modes of vibration,(g) Two coupled circuits. weakly coupled oscillators. The normal modes of vibration for thecoupled system are as indicated in Figs. 9e and 9/. These two modeshave different frequencies. Similarly if two electrical circuits areplaced so
. The Bell System technical journal . (f) (9) INDUCTIVECOUPLING Fig. 9—A diatomic molecule and some mechanical and electrical analogues. (a) The potential energy of an electron for points on a line through the two nuclei. (b) and (c) Values of two wave functions for points on the same line. (d) Two coupled oscillators. (e) and (f) Their normal modes of vibration,(g) Two coupled circuits. weakly coupled oscillators. The normal modes of vibration for thecoupled system are as indicated in Figs. 9e and 9/. These two modeshave different frequencies. Similarly if two electrical circuits areplaced so that there is some inductive coupling between them, we findthat each frequency is split into a pair. This inductive coupling issimilar to the overlapping of the wave functions; thus the couplingbetween the circuits is large when the electromagnetic field of onereaches over to the other. We may summarize the situation by sayingthat before coupling each frequency occurred twice, once for each sys- 668 BELL SYSTEM TECHNICAL JOURNAL t
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