JPS55120299A - Circular ultrasonic vibration element - Google Patents

Circular ultrasonic vibration element

Info

Publication number
JPS55120299A
JPS55120299A JP2800079A JP2800079A JPS55120299A JP S55120299 A JPS55120299 A JP S55120299A JP 2800079 A JP2800079 A JP 2800079A JP 2800079 A JP2800079 A JP 2800079A JP S55120299 A JPS55120299 A JP S55120299A
Authority
JP
Japan
Prior art keywords
piezoelectric
diaphragm
center
piezoelectric converter
amplitude
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2800079A
Other languages
Japanese (ja)
Other versions
JPS6125436B2 (en
Inventor
Kanji Ooya
Kozo Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Priority to JP2800079A priority Critical patent/JPS55120299A/en
Publication of JPS55120299A publication Critical patent/JPS55120299A/en
Publication of JPS6125436B2 publication Critical patent/JPS6125436B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

PURPOSE:To radiate an even ultrasonic wave from the broad irradiation surface of a diaphragm by concentrically connecting many piezoelectric transformers to the circumference of one piezoelectric transformer, coupled with the center part of the surface of a diaphragm piece, at intervals of one-fourth wave-length of transverse vibration. CONSTITUTION:When piezoelectric converters 12a-12c coupled with circular disphragm 11 in a fixed pattern are drived in phase at a time at the same frequency, parts 11a, 11b and 11c of the diaphragm coupling center, intermediate and external piezoelectric converter groups 12a, 12b and 12c are amplitude-displaced as shown by small curves (b), (c) and (d) and longitudinal vibration of amplitude displacement like curve (e) on the whole can be obtained. Then, the impedance of external circumference piezoelectric converter group 12c is minimized and that of center piezoelectric converter 12a is maximized or center piezoelectric converter 12a is connected out of phase, so that the diaphragm can longitudinally be vibrated with a uniform amplitude value over its entire surface.
JP2800079A 1979-03-09 1979-03-09 Circular ultrasonic vibration element Granted JPS55120299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2800079A JPS55120299A (en) 1979-03-09 1979-03-09 Circular ultrasonic vibration element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2800079A JPS55120299A (en) 1979-03-09 1979-03-09 Circular ultrasonic vibration element

Publications (2)

Publication Number Publication Date
JPS55120299A true JPS55120299A (en) 1980-09-16
JPS6125436B2 JPS6125436B2 (en) 1986-06-16

Family

ID=12236533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2800079A Granted JPS55120299A (en) 1979-03-09 1979-03-09 Circular ultrasonic vibration element

Country Status (1)

Country Link
JP (1) JPS55120299A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0552081U (en) * 1991-12-24 1993-07-09 松下電工株式会社 Floor material for floor heating
WO1996023296A1 (en) * 1995-01-27 1996-08-01 Kks Keller H.P. Ultrasonic generator
US5834877A (en) * 1995-08-28 1998-11-10 Accuweb, Inc. Ultrasonic transducer units for web detection and the like
US6815924B1 (en) 1999-09-21 2004-11-09 Kabushiki Kaisha Yaskawa Denki Method of controlling AC motor and controller
JP2012125743A (en) * 2010-12-17 2012-07-05 Kaijo Corp Ultrasonic transducer unit
CN107999363A (en) * 2016-10-28 2018-05-08 钟志刚 The automatically controlled vibrating device of three coordinates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0234695U (en) * 1988-08-30 1990-03-06

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0552081U (en) * 1991-12-24 1993-07-09 松下電工株式会社 Floor material for floor heating
WO1996023296A1 (en) * 1995-01-27 1996-08-01 Kks Keller H.P. Ultrasonic generator
US5834877A (en) * 1995-08-28 1998-11-10 Accuweb, Inc. Ultrasonic transducer units for web detection and the like
US6815924B1 (en) 1999-09-21 2004-11-09 Kabushiki Kaisha Yaskawa Denki Method of controlling AC motor and controller
JP2012125743A (en) * 2010-12-17 2012-07-05 Kaijo Corp Ultrasonic transducer unit
CN107999363A (en) * 2016-10-28 2018-05-08 钟志刚 The automatically controlled vibrating device of three coordinates

Also Published As

Publication number Publication date
JPS6125436B2 (en) 1986-06-16

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