周回進行波型弾性表面波振動子に関する研究

若手展開研究: カテゴリBtextapplication/pdfresearch repor

超音波モータの摩擦駆動面に適用できるセグメント構造ダイヤモンド状炭素膜の形状制御に関する研究

プロジェクト番号 : A12-96一般研究 : 基礎研究textapplication/pdfresearch repor

触覚フィードバックを備えたペンタブレットインターフェース

プロジェクト番号 : A11－33若手展開研究 : カテゴリBtextapplication/pdfresearch repor

弾性表面波リニアモータの低速高精度速度制御に関する研究

プロジェクト番号 : A07-72textapplication/pdfconference objec

アクティブタイプ弾性表面波皮膚感覚ディスプレイによる情報提示への応用に関する研究

textapplication/pdfresearch repor

書き味フィードバックを備えたペンタブレットインターフェースの開発

プロジェクト番号 : A09-32若手展開研究 : カテゴリBtextapplication/pdfresearch repor

食品用超音波カッターの開発

２　産学官連携研究及び地域連携研究textapplication/pdfresearch repor

Kaempfers „Japan-Bericht“ als Idee

text紀要論文 / Departmental Bulletin Paperdepartmental bulletin pape

弾性表面波皮膚感覚ディスプレイマウスの開発

Previously, we proposed a novel method to provide human tactile sensation using surface acoustic wave (SAW). A pulse modulated driving voltage excites temporal distribution of shear force (Passive Type) or friction shift (Active Type) on the surface of SAW substrate. The force / friction distribution can be perceived as tactile sensation at mechanoreceptors in the finger skin. In this report, the SAW tactile display using SAW linear motor principle (Passive Type) was applied for a computer mouse. Two phases of shear force were used to excite alternative force distribution in the operators fmger skin. The mouse could indicate sensation of exploring on solid surface by a finger. The indication of the sensation was clearer than the previous demonstration. An objective evaluation of the display was also discussed.textapplication/pdfdepartmental bulletin pape

PWMを用いた弾性表面波リニアモータの速度制御(機械力学,計測,自動制御)

Surface acoustic wave (SAW) linear motor is a kind of ultrasonic motors. The SAW linear motor has several advantages, such as thin structure, high thrust force, high velocity and precise positioning. Relationship between applied voltage and output velocity, however, had non-linearity in low velocity range due to friction drive principle. Therefore the SAW linear motor cannot obtain stable driving without feedback control at low velocity. To realize low velocity, PWM (pulse width modulation) control and flexible slider structure are employed. The flexible structure is installed to cancel vibration due to PWM carrier frequency. In this research, PWM is applied for controlling the slider velocity. Lower velocity in non-linear range is realized. Influence of the flexible structure upon precise positioning is investigated.textapplication/pdfjournal articl