Title:
ULTRASONIC COMPLEX VIBRATION TRANSDUCER
Document Type and Number:
Japanese Patent JP2015104689
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an ultrasonic complex transducer capable of efficiently transmitting vibrations in respective vibration modes, and separately controlling the vibrations even if the vibrations are separated.SOLUTION: An ultrasonic complex transducer 10 includes: a transducer main body 11; and a piezoelectric element 20. The transducer main body 11 has a length equal to or larger than one wavelength of a resonance frequency thereof. Furthermore, the transducer main body 11 has positions of at least two nodes. The piezoelectric element 20 includes at least two piezoelectric elements having different vibration modes, respectively; for example, a longitudinal vibration piezoelectric element 21 and a torsional vibration piezoelectric element 22. These piezoelectric elements 21 and 22 are arranged at the positions of the at least two nodes of the transducer main body 11, respectively.
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Inventors:
MIURA HIKARI
ASAMI TAKUYA
MAITA YUICHI
ASAMI TAKUYA
MAITA YUICHI
Application Number:
JP2013247238A
Publication Date:
June 08, 2015
Filing Date:
November 29, 2013
Export Citation:
Assignee:
UNIV NIHON
HONDA ELECTRONIC
HONDA ELECTRONIC
International Classes:
B06B1/06
Domestic Patent References:
| JPH1080159A | 1998-03-24 | |||
| JPH09135842A | 1997-05-27 | |||
| JP2003526415A | 2003-09-09 |
Attorney, Agent or Firm:
Ihei Ihei
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