JPS56141700A - Piezo-oscillator - Google Patents

Piezo-oscillator

Info

Publication number
JPS56141700A
JPS56141700A JP4430580A JP4430580A JPS56141700A JP S56141700 A JPS56141700 A JP S56141700A JP 4430580 A JP4430580 A JP 4430580A JP 4430580 A JP4430580 A JP 4430580A JP S56141700 A JPS56141700 A JP S56141700A
Authority
JP
Japan
Prior art keywords
oscillator
thickness
electrode
piezo
polarized
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
JP4430580A
Other languages
Japanese (ja)
Inventor
Sadayuki Takahashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4430580A priority Critical patent/JPS56141700A/en
Publication of JPS56141700A publication Critical patent/JPS56141700A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/10—Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To form a suitable piezo-oscillator for the acoustic measuring system by which amplitude shading can be made easily, by constituting one or both of the upper and lower electrode surfaces of a piezoelectric thickness oscillator, by use of a split electrode. CONSTITUTION:This piezoelectric thickness oscillator is 60mm. in diameter, 5.5mm. in thickness, is formed by use of ceramic materials consisting of Pb0.97Sr0.03Ti0.95 (Mn1/3Sb2/3)0.05O3, polarized in the direction of thickness, the upper surface electrode is divided into three in the coaxial circumferential form, and the lower surface electrode is polarized over the whole surface. The shape of this oscillator can be made square or rectangular.
JP4430580A 1980-04-04 1980-04-04 Piezo-oscillator Pending JPS56141700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4430580A JPS56141700A (en) 1980-04-04 1980-04-04 Piezo-oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4430580A JPS56141700A (en) 1980-04-04 1980-04-04 Piezo-oscillator

Publications (1)

Publication Number Publication Date
JPS56141700A true JPS56141700A (en) 1981-11-05

Family

ID=12687775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4430580A Pending JPS56141700A (en) 1980-04-04 1980-04-04 Piezo-oscillator

Country Status (1)

Country Link
JP (1) JPS56141700A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253798A (en) * 1989-03-27 1990-10-12 Mitsubishi Mining & Cement Co Ltd Piezoelectric converting element
US20130076209A1 (en) * 2011-09-23 2013-03-28 Qualcomm Incorporated Piezoelectric resonator having combined thickness and width vibrational modes
DE102012204638A1 (en) * 2012-03-22 2013-09-26 Robert Bosch Gmbh Ultrasonic sensor and method for measuring an object distance

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351989A (en) * 1976-10-21 1978-05-11 Furuno Electric Co Piezooelectric vibrator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351989A (en) * 1976-10-21 1978-05-11 Furuno Electric Co Piezooelectric vibrator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253798A (en) * 1989-03-27 1990-10-12 Mitsubishi Mining & Cement Co Ltd Piezoelectric converting element
US20130076209A1 (en) * 2011-09-23 2013-03-28 Qualcomm Incorporated Piezoelectric resonator having combined thickness and width vibrational modes
JP2014531833A (en) * 2011-09-23 2014-11-27 クアルコム，インコーポレイテッド Piezoelectric resonator with combined thickness and width vibration modes
US8987976B2 (en) * 2011-09-23 2015-03-24 Qualcomm Incorporated Piezoelectric resonator having combined thickness and width vibrational modes
DE102012204638A1 (en) * 2012-03-22 2013-09-26 Robert Bosch Gmbh Ultrasonic sensor and method for measuring an object distance

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