JPS5687999A - Ultrasonic wave oscillator - Google Patents
Ultrasonic wave oscillatorInfo
- Publication number
- JPS5687999A JPS5687999A JP16535179A JP16535179A JPS5687999A JP S5687999 A JPS5687999 A JP S5687999A JP 16535179 A JP16535179 A JP 16535179A JP 16535179 A JP16535179 A JP 16535179A JP S5687999 A JPS5687999 A JP S5687999A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- sound impedance
- cms
- metal plate
- ultrasonic wave
- 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.)
- Pending
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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
PURPOSE:To suppress the unnecessary oscillation due to broadwise oscillating component radially and to increase the efficiency in conversion of liquid into fine particles, by fixing the metal, in which the sound impedance comes to an intermediate between the piezoelectric oscillator and the liquid to the surface of electrode, in an ultrasonic wave oscillator. CONSTITUTION:Silver-made electrodes 9a, 9b are provided on the entire surface for the front and back of the piezoelectric element substrate 8 made of disc shape ceramic. Further, on the front surface of one electrode 9a, disc shape metal plate 10 is fixed with adhesives. This metal plate 10 is made of metals such as aluminum, copper and brass, which is the same as aluminum, and the sound impedance is 8X10<5>(g/cms). The sound impedance 2 of piezoelectric element and liquid such as kerosene is respectively 22X10<5>(g/cms) and 1X10<5>(g/cms). Since the sound impedance of the metal plate 10 is an intermediate value, the matching of the sound impedance is improved, unnecessary oscillation due to the broadwise oscillation component radially can be suppressed and the efficiency of fine particles of liquid can be increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16535179A JPS5687999A (en) | 1979-12-18 | 1979-12-18 | Ultrasonic wave oscillator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16535179A JPS5687999A (en) | 1979-12-18 | 1979-12-18 | Ultrasonic wave oscillator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5687999A true JPS5687999A (en) | 1981-07-17 |
Family
ID=15810700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16535179A Pending JPS5687999A (en) | 1979-12-18 | 1979-12-18 | Ultrasonic wave oscillator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687999A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58206962A (en) * | 1982-05-18 | 1983-12-02 | Yokogawa Hokushin Electric Corp | Ultrasonic probe and its manufacture |
JPS61196700A (en) * | 1985-02-26 | 1986-08-30 | Toshiba Corp | Piezoelectric ceramic vibrator |
GB2410552B (en) * | 2002-11-18 | 2006-07-26 | Baker Hughes Inc | Acoustic devices to measure ultrasound velocity in drilling mud |
-
1979
- 1979-12-18 JP JP16535179A patent/JPS5687999A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58206962A (en) * | 1982-05-18 | 1983-12-02 | Yokogawa Hokushin Electric Corp | Ultrasonic probe and its manufacture |
JPH0212440B2 (en) * | 1982-05-18 | 1990-03-20 | Yokogawa Electric Corp | |
JPS61196700A (en) * | 1985-02-26 | 1986-08-30 | Toshiba Corp | Piezoelectric ceramic vibrator |
GB2410552B (en) * | 2002-11-18 | 2006-07-26 | Baker Hughes Inc | Acoustic devices to measure ultrasound velocity in drilling mud |
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