A new flextensional piezoelectric ultrasonic motor - design, fabrication and characterisation

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dc.contributor.authorLeinvuo, Joni T.
dc.contributor.authorWilson, Stephen A.
dc.contributor.authorWhatmore, Roger W.
dc.contributor.authorCain, Markys G.
dc.date.accessioned2007-09-03T11:25:02Z
dc.date.available2007-09-03T11:25:02Z
dc.date.issued2007-01-08
dc.description.abstractThis paper presents the techniques used for the characterisation of a new type of standing-wave piezoelectric ultrasonic motor. The motor uses a metallic flextensional amplifier, or “cymbal”, to convert the radial mode vibrations of a piezoelectric ceramic disc into flexural oscillations, which are further converted to produce rotary actuation by means of an elastic fin friction drive. The motor operates on a single-phase electrical supply. A beryllium copper rotor design with three-fin configuration was adopted. The best stall torque, no load speed, transient time and efficiency for a 25 mm motor were 2 N mm, 680 rpm, 2 ms and 4.8%, respectively. The operational characteristics of the motor were evaluated by using two methods: one based on the pulley–brake principle and one on high-speed imaging. The results obtained from using these two techniques are contrasted and compared.en
dc.format.extent826122 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citationLeinvuo JT, Wilson SA, Whatmore RW, Cain MG. (2007) A new flextensional piezoelectric ultrasonic motor - design, fabrication and characterisation. Sensors and Actuators A: Physical, Volume 133, Issue 1, January 2007, pp. 141-151en
dc.identifier.issn0924-4247
dc.identifier.urihttp://hdl.handle.net/1826/1853
dc.identifier.urihttp://dx.doi.org/10.1016/j.sna.2006.04.010
dc.language.isoenen
dc.publisherElsevieren
dc.subjectUltrasonic motoren
dc.subjectFlextensional amplifieren
dc.subjectPulley-brakeen
dc.subjectHigh-speed imagingen
dc.subjectTorque measurementen
dc.titleA new flextensional piezoelectric ultrasonic motor - design, fabrication and characterisationen
dc.typeArticleen

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