JPS55120299A - Circular ultrasonic vibration element - Google Patents
Circular ultrasonic vibration elementInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0234695U (en) * | 1988-08-30 | 1990-03-06 |
-
1979
- 1979-03-09 JP JP2800079A patent/JPS55120299A/en active Granted
Cited By (6)
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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