ロボティクス・メカトロニクス講演会講演概要集
Online ISSN : 2424-3124
セッションID: 2P1-G04
会議情報
2P1-G04 ニオブ酸リチウム単結晶を用いた高温対応強力超音波振動子の開発(超環境ロボット・メカトロニクス)
森田 剛五十部 学Peter BORNMANNTobias HEMSEL
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会議録・要旨集 フリー

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抄録
The electromagnetic motors and ultrasonic motors cannot be used in a high temperature environment due to their Curie temperature. For example in the case of conventional ultrasonic motors using PZT ceramics, the maximum temperature condition is 150 degree C. In this research, high Curie temperature material, lithium niobate single crystal was examined for high temperature environment transducer. Its Curie temperature is 1210 degree C and the single crystals are available in the market with a reasonable cost because this material is in practical use as surface acoustic wave filters. The multilayered lithium niobate single crystals were assembled and the Langevin transducer was fabricated. The high power vibration performance in high temperature conditions were compared to that of the PZT ceramic transducers.
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© 2012 一般社団法人 日本機械学会
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