JPS57145497A - Wave transmitter and receiver - Google Patents

Wave transmitter and receiver

Info

Publication number
JPS57145497A
JPS57145497A JP3166981A JP3166981A JPS57145497A JP S57145497 A JPS57145497 A JP S57145497A JP 3166981 A JP3166981 A JP 3166981A JP 3166981 A JP3166981 A JP 3166981A JP S57145497 A JPS57145497 A JP S57145497A
Authority
JP
Japan
Prior art keywords
electrodes
receiver
wave transmitter
bellows
cylinder
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
JP3166981A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0258839B2 (enrdf_load_stackoverflow
Inventor
Yukio Saito
Sadayuki Takahashi
Haimi Takasaki
Hiroshi Obara
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.)
Kureha Corp
NEC Corp
Original Assignee
Kureha Corp
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 Kureha Corp, NEC Corp, Nippon Electric Co Ltd filed Critical Kureha Corp
Priority to JP3166981A priority Critical patent/JPS57145497A/ja
Publication of JPS57145497A publication Critical patent/JPS57145497A/ja
Publication of JPH0258839B2 publication Critical patent/JPH0258839B2/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
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
JP3166981A 1981-03-05 1981-03-05 Wave transmitter and receiver Granted JPS57145497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3166981A JPS57145497A (en) 1981-03-05 1981-03-05 Wave transmitter and receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3166981A JPS57145497A (en) 1981-03-05 1981-03-05 Wave transmitter and receiver

Publications (2)

Publication Number Publication Date
JPS57145497A true JPS57145497A (en) 1982-09-08
JPH0258839B2 JPH0258839B2 (enrdf_load_stackoverflow) 1990-12-10

Family

ID=12337528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3166981A Granted JPS57145497A (en) 1981-03-05 1981-03-05 Wave transmitter and receiver

Country Status (1)

Country Link
JP (1) JPS57145497A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60264200A (ja) * 1984-06-13 1985-12-27 Shimada Phys & Chem Ind Co Ltd 超音波振動子
JP2010256307A (ja) * 2009-04-28 2010-11-11 Tohoku Univ 硬さ測定装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60264200A (ja) * 1984-06-13 1985-12-27 Shimada Phys & Chem Ind Co Ltd 超音波振動子
JP2010256307A (ja) * 2009-04-28 2010-11-11 Tohoku Univ 硬さ測定装置

Also Published As

Publication number Publication date
JPH0258839B2 (enrdf_load_stackoverflow) 1990-12-10

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