William Sturgeons first induction coil

Autor/Urheber:

John Ambrose Fleming

Shortlink:

https://dewiki.de/b/b6daa

Quelle:

Wikimedia Commons

Größe:

550 x 462 Pixel (33788 Bytes)

Beschreibung:

Drawing of one of the first induction coils, built by British physicist William Sturgeon in 1837. The primary of the coil (B) was 260 ft. of bell wire wound on a wooden bobbin with an iron core, and the secondary was 1300 ft of thinner wire, insulated with a wax coating, wound on top, and soldered to the primary wire to make an autotransformer. The primary was powered by a liquid battery cell (0). The zinc sawtooth interrupter wheel (D) dipping in mercury was turned by hand to break the primary current, to create the flux changes necessary to induce a voltage in the secondary. The magnitude of the voltage produced was judged by how strong a shock it gave when the copper handles (H) were held.

Lizenz:

Public domain

Credit:

Downloaded 2012-05-20 from John Ambrose Fleming (1893) The Alternate Current Transformer in Thory and Practice, Vol.2, The Electrician Printing and Publishing Co., London, p.11,fig.6 on Google Books

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