JPS5489721A - Compound type transmitter-receiver - Google Patents

Compound type transmitter-receiver

Info

Publication number
JPS5489721A
JPS5489721A JP15883277A JP15883277A JPS5489721A JP S5489721 A JPS5489721 A JP S5489721A JP 15883277 A JP15883277 A JP 15883277A JP 15883277 A JP15883277 A JP 15883277A JP S5489721 A JPS5489721 A JP S5489721A
Authority
JP
Japan
Prior art keywords
vibrator
electrodes
vibrators
central part
receiving
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
JP15883277A
Other languages
Japanese (ja)
Other versions
JPS6133318B2 (en
Inventor
Haiyoshi Takasaki
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 JP15883277A priority Critical patent/JPS5489721A/en
Publication of JPS5489721A publication Critical patent/JPS5489721A/en
Publication of JPS6133318B2 publication Critical patent/JPS6133318B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To achieve the improvement of sensitivity and miniaturization of the apparatus by integrating electrically independent transmitting and receiving vibrators. CONSTITUTION:Electrodes 11, 12 are provided to the receiving vibrator 10 which forms a radial collar at a right angle in the central part of the transmitting vibrator 1' which is parallel connected with four sets or other of electrodes 8, 9, 15, 16, whereby the electrically independent vibrators 1' and 10 are integrated. These vibrators 1', 10' are matched in their resonance frequency. When the electrodes 8, 9 are connected to an AC power source of the resonance frequency, the vibrator1' well vibrates in its height direction with its both end faces becoming antinode and its central part becoming node. The vibrator 10 resonating in its radial direction integrally with the vibrator 1' is resonance-driven by way of the central part of the vibrator 1' and at the same time the spacing of the electrodes 11, 12 is selected irrespective of the vibrator 1', thus the receiving sensitivity owing to advantageous impedances may be readily improved and the compound type receiver is miniaturized by the integrated vibrator.
JP15883277A 1977-12-27 1977-12-27 Compound type transmitter-receiver Granted JPS5489721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15883277A JPS5489721A (en) 1977-12-27 1977-12-27 Compound type transmitter-receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15883277A JPS5489721A (en) 1977-12-27 1977-12-27 Compound type transmitter-receiver

Publications (2)

Publication Number Publication Date
JPS5489721A true JPS5489721A (en) 1979-07-17
JPS6133318B2 JPS6133318B2 (en) 1986-08-01

Family

ID=15680358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15883277A Granted JPS5489721A (en) 1977-12-27 1977-12-27 Compound type transmitter-receiver

Country Status (1)

Country Link
JP (1) JPS5489721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5991795A (en) * 1982-11-17 1984-05-26 Mitsubishi Electric Corp Ultrasonic wave probe
FR2581821A1 (en) * 1985-05-10 1986-11-14 France Etat Armement METHOD FOR USING A TONPILZ TYPE PIEZOELECTRIC TRANSDUCER ALTERNATIVELY AS A TRANSMITTER AND AS A BROADBAND RECEIVER AND PIEZOELECTRIC TRANSDUCERS
JPH04128500U (en) * 1991-05-14 1992-11-24 日本無線株式会社 Ultrasonic transducer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5991795A (en) * 1982-11-17 1984-05-26 Mitsubishi Electric Corp Ultrasonic wave probe
JPH0129354B2 (en) * 1982-11-17 1989-06-09 Mitsubishi Electric Corp
FR2581821A1 (en) * 1985-05-10 1986-11-14 France Etat Armement METHOD FOR USING A TONPILZ TYPE PIEZOELECTRIC TRANSDUCER ALTERNATIVELY AS A TRANSMITTER AND AS A BROADBAND RECEIVER AND PIEZOELECTRIC TRANSDUCERS
JPH04128500U (en) * 1991-05-14 1992-11-24 日本無線株式会社 Ultrasonic transducer

Also Published As

Publication number Publication date
JPS6133318B2 (en) 1986-08-01

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