Departmental Bulletin Paper 音響管を用いたレベルスイッチ

赤池, 誠規

Description
Level switches are sensor with an electrical contact output at a specific liquid, powder or bulk level. Most of traditional level switches are not suitable for harsh environments. The level switch in this study connects a loudspeaker on top end of the sound tube. When liquid, powder or bulk closes bottom end of the sound tube, the level switch turns on. The level switch is suitable for harsh environments and easy to install. The aim of this study is to propose a level switch with a sound tube.Key Words : Level Switch , Sound Tube, Loudspeaker
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http://repo.lib.hosei.ac.jp/bitstream/10114/13594/1/15R4101.pdf

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