JPS5687999A - Ultrasonic wave oscillator - Google Patents

Ultrasonic wave oscillator

Info

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
Application number
JP16535179A
Other languages
Japanese (ja)
Inventor
Akira Tokushima
Takao Kusuda
Yukihiko Ise
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16535179A priority Critical patent/JPS5687999A/en
Publication of JPS5687999A publication Critical patent/JPS5687999A/en
Pending 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
    • 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.
JP16535179A 1979-12-18 1979-12-18 Ultrasonic wave oscillator Pending JPS5687999A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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