Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Yoshiro Tomikawa"'
Publikováno v:
Japanese Journal of Applied Physics. 47:4265-4270
There is a great possibility that an ultrasonic motor (USM) can effectively reproduce realistic feelings of hardness and roughness on a virtual object in a haptic virtual reality system, because it has a rapid response characteristic. However, the st
Publikováno v:
Japanese Journal of Applied Physics. 47:4034-4040
We have studied a miniature ultrasonic motor using a piezoelectric single-crystal LiNbO3. The crystal vibrator retains superior characteristics even when the vibrational velocity is large. On the other hand, a vibrator using a resonance mode shows no
Autor:
Yoshiro Tomikawa, Manabu Aoyagi, Seiji Hirose, Hideki Tamura, Kyousuke Shibata, Takehiro Takano
Publikováno v:
Japanese Journal of Applied Physics. 47:4015-4020
A miniature thin-plate ultrasonic motor fabricated from LiNbO3 was studied. To obtain a single phase drive motor, we used a coupling mode which combined a longitudinal and flexural in-plane vibrations. In our previous study, the coupling modes were a
Autor:
Taisei Irieda, Seiji Hirose, Yutaka Doshida, Yoshiro Tomikawa, Sumiaki Kishimoto, Hideki Tamura
Publikováno v:
Japanese Journal of Applied Physics. 47:4242-4247
We studied the following to improve the characteristics of the lead-free ultrasonic micromotor. A double-mode miniature cantilever-type ultrasonic motor was fabricated using array-type multilayer piezoelectric ceramics (A-MLPC) of (Sr,Ca)2NaNb5O15 (S
Autor:
Yoshiro Tomikawa, Hiroshi Kishi, Hideki Tamura, Keisuke Ishii, Yutaka Doshida, Sumiaki Kishimoto, Seiji Hirose
Publikováno v:
Japanese Journal of Applied Physics. 46:4921-4925
A Miniature cantilever-type ultrasonic motor was fabricated using multilayer piezoelectric ceramics (MLPC) made of (Sr,Ca)2NaNb5O15 (SCNN), a Pb-free piezoelectric material, and the electrical driving properties were investigated. The displacement of
Publikováno v:
Japanese Journal of Applied Physics. 46:4709-4713
For the actualization of a monolithic triaxial gyrosensor, we have proposed a threefold rotatory symmetric form vibrator using a quartz crystal Z-cut wafer that can be etched to a complex shape. In the former proposed vibrator, however, an etching re
Publikováno v:
Japanese Journal of Applied Physics. 46:4698-4703
An ultrasonic motor fabricated from a LiNbO3 plate for high-speed revolution is presented. To obtain a high-speed motor, a large vibration velocity is required, and LiNbO3 is suitable because it can maintain stable vibrational characteristics even wh
Publikováno v:
Hosokawa Powder Technology Foundation ANNUAL REPORT. 13:106-110
Autor:
Seiya Takahashi, Yoshiro Tomikawa
Publikováno v:
Japanese Journal of Applied Physics. 42:6135-6138
A new nanoliter pipetting device is proposed. The device can both aspirate and dispense liquid. For aspiration, a piezoelectric transducer vibrates a glass capillary that holds a sample liquid in the longitudinal resonant mode. As a result of this vi
Autor:
Yoshiro Tomikawa, Tomoki Funakubo
Publikováno v:
Japanese Journal of Applied Physics. 42:3002-3006
In the present paper we discuss a small-sized multilayer L1-F2 mode vibrator and its application to an ultrasonic linear motor. In an attempt to reduce both the size and the driving voltage of an L1-F2 mode vibrator, we constructed a multilayer L1-F2