File:Big Wehrsen Machine (or a sectored Holtz machine) IX.jpg
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Big_Wehrsen_Machine_(or_a_sectored_Holtz_machine)_IX.jpg (800 × 600 pixels, file size: 58 KB, MIME type: image/jpeg)
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[edit]DescriptionBig Wehrsen Machine (or a sectored Holtz machine) IX.jpg |
English: In 1907 Heinrich Wommelsdorf described an electrostatic machine that was a variation of the Holtz machine of the first kind but with a rotating disk made of ebonite having embedded sectors accessed through buttons at the disk surface and inductor plates embedded in celluloid attached to a fixed ebonite disk. Machines with this structure were popularized by the instrument builder Alfred Wehrsen, in Berlin, who also patented this form of disk in 1903, so it is sometimes mentioned as the "Wehrsen machine". By Dr. Antônio Carlos M. de Queiroz (in memoriam).
https://www.coe.ufrj.br/~acmq/wehrsen.html https://www.youtube.com/user/acmdq2007/videos https://acmq-326823.web.app/ https://www.flickr.com/photos/194095199@N08/ |
Date | |
Source | Own work |
Author | DrAntonioCarlosMdeQueiroz |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:59, 14 October 2021 | 800 × 600 (58 KB) | DrAntonioCarlosMdeQueiroz (talk | contribs) | Uploaded own work with UploadWizard |
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1 October 2021
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78f18e749545a3e5a05ca1b7e164c95229cf0c61
59,266 byte
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