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コイルと磁石を与えられたものとせよ
johnsmith
電磁石の原理
電気が流れるとそこに磁界が発生する、
それを円周状に結束し、指向性をもたせたものが電磁石である。
http://www.max.hi-ho.ne.jp/lylle/jikai2.html
電磁石を用いているもの
• スピーカー
• トランス
• ソレノイド
• リレー
• モーター
• ピックアップ(ギター他)
• 発電機
佐藤慶次郎 「Over the Waves」 他
振動や電磁石を利用した動く彫刻作品
https://www.youtube.com/watch?v=g20O5Vp6qDg
Stefan Doepner 「jedinicaJedan_Vol.2」他
コイルをアンテナとして使用したインスタレーション作品
https://www.youtube.com/watch?v=SUdlhXFAhDQ
Alvin Lucier 「Music On A Long Thin Wire」
長いワイヤーには正弦波発信機から電気信号がアンプで増幅され流されており、その電流による磁
界に馬蹄型の磁石を反応させることでワイヤーを振動させ、その振動をコンタクトマイクて拾う。
http://ynutokiwadai.web.fc2.com/GMWS.html(生成音楽ワークショップ)
参考研究
Jess Rowland, Flexible Audio Speakers for Composition and Art Practice
Rowland, Jess.
"Flexible Audio Speakers for Composition and Art Practice."
Leonardo Music Journal 23 (2013): 33-36.
t
経緯
「Electro Voice」
「彼と彼女の間に流れる電流の相互関係に見る彼と彼女の関係性について」
磁石 磁気コイル
身体をアンテナとして使った作品
アンテナとして最も簡便な形状である
ループ式アンテナの応用
「超超短距離電信装置」
技法
• 小川一秀, 電磁石の素材と加工方法 http://www.kochi-tech.ac.jp/library/ron/2001/mech/1020098.pdf
• 電磁石の原理 http://www.rlc.gr.jp/project/e_genri/l/denjishaku/setumei/setumei.htm
• 脇島修,電磁石の強さ考察 http://www.osaka-c.ed.jp/kak/web/kenkyuu16/pdf/b01/2.pdf
• 北川電気株式会社,トランスについて http://www.kitagawa-denki.co.jp/products/about/theory/
• モーターの話 http://hr-inoue.net/zscience/topics/motor/motor.html
• Rowland, Jess. "Flexible Audio Speakers for Composition and Art Practice." Leonardo Music Journal 23
(2013): 33-36.

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コイルと磁石が与えられたものとせよ