JPS57196699A - Acoustic transducer - Google Patents

Acoustic transducer

Info

Publication number
JPS57196699A
JPS57196699A JP8011481A JP8011481A JPS57196699A JP S57196699 A JPS57196699 A JP S57196699A JP 8011481 A JP8011481 A JP 8011481A JP 8011481 A JP8011481 A JP 8011481A JP S57196699 A JPS57196699 A JP S57196699A
Authority
JP
Japan
Prior art keywords
section
bonding layer
reception
acoustic transducer
sensitivity
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
JP8011481A
Other languages
Japanese (ja)
Other versions
JPS6348480B2 (en
Inventor
Katsuji Kawaguchi
Tadao Komi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8011481A priority Critical patent/JPS57196699A/en
Publication of JPS57196699A publication Critical patent/JPS57196699A/en
Publication of JPS6348480B2 publication Critical patent/JPS6348480B2/ja
Granted 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
    • H04R17/02—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To increase the sensitivity of reception and to withstand long time use at high temperatures, by forming a bonding layer between a metallic box and an acousic conversion piezoelectric element with Ag and Li. CONSTITUTION:An acoustic conversion piezoelectric element 3 is provided in a transmission and reception wave section 2 in a metallic box 1. The section 2 and the element 3 are incorporated with a bonding layer 4. An AC voltage is given to the element 3 and the section 2 through a metallic film cable 8 and a core 7 via a conductor 6 and an electrode 5. In the acoustic transducer with this constitution, the bonding layer 4 is formed with Ag and Li. As a result, in the baking for the purpose of bonding between the section 2 and the element 3, no Li is segregated, the sensitivity of reception is increased and the durability for a long time at high temperature is obtained.
JP8011481A 1981-05-28 1981-05-28 Acoustic transducer Granted JPS57196699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8011481A JPS57196699A (en) 1981-05-28 1981-05-28 Acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8011481A JPS57196699A (en) 1981-05-28 1981-05-28 Acoustic transducer

Publications (2)

Publication Number Publication Date
JPS57196699A true JPS57196699A (en) 1982-12-02
JPS6348480B2 JPS6348480B2 (en) 1988-09-29

Family

ID=13709153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8011481A Granted JPS57196699A (en) 1981-05-28 1981-05-28 Acoustic transducer

Country Status (1)

Country Link
JP (1) JPS57196699A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02170799A (en) * 1988-12-23 1990-07-02 Sumitomo Cement Co Ltd Ultrasonic element and manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02170799A (en) * 1988-12-23 1990-07-02 Sumitomo Cement Co Ltd Ultrasonic element and manufacture thereof

Also Published As

Publication number Publication date
JPS6348480B2 (en) 1988-09-29

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