An ultrasonic motor for use at ultralow temperature using lead magnesium niobate-lead titanate single crystal

Daisuke Yamaguchi, Takefumi Kanda, Koichi Suzumori, Masataka Kuroda, Dai Takeda

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this study, an ultrasonic motor for use at ultralow temperatures has been fabricated and evaluated. The motor has a bolt-clamped Langevintype transducer using lead magnesium niobate-lead titanate (PMN-PT) single crystal. The transducer is proposed as an oscillator for use at ultralow temperatures by simulation of the thermal stress and evaluation of the pre-load. The thermal effect of the transducer was evaluated when the temperature was changed. As a result, the pre-load of the transducer was concluded to be affected by thermal stress. In addition, the ultrasonic motor using the transducer was fabricated and evaluated. By adjusting the contact pre-load between the rotor and the transducer, the motor has successfully rotated at an ultralow temperature. The rotation speed was 144 rpm at 4.4 K when the applied voltage was 150 V p-p. This rotation speed is larger than that of previous same size actuators that can be used at ultralow temperatures.

Original languageEnglish
Article number07GE09
JournalJapanese Journal of Applied Physics
Volume51
Issue number7 PART2
DOIs
Publication statusPublished - Jul 2012

Fingerprint

niobates
cryogenic temperature
Magnesium
magnesium
Transducers
transducers
Lead
ultrasonics
Ultrasonics
Single crystals
single crystals
thermal stresses
Thermal stress
Temperature
bolts
Bolts
Thermal effects
rotors
temperature effects
Loads (forces)

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

An ultrasonic motor for use at ultralow temperature using lead magnesium niobate-lead titanate single crystal. / Yamaguchi, Daisuke; Kanda, Takefumi; Suzumori, Koichi; Kuroda, Masataka; Takeda, Dai.

In: Japanese Journal of Applied Physics, Vol. 51, No. 7 PART2, 07GE09, 07.2012.

Research output: Contribution to journalArticle

Yamaguchi, Daisuke ; Kanda, Takefumi ; Suzumori, Koichi ; Kuroda, Masataka ; Takeda, Dai. / An ultrasonic motor for use at ultralow temperature using lead magnesium niobate-lead titanate single crystal. In: Japanese Journal of Applied Physics. 2012 ; Vol. 51, No. 7 PART2.
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