JPS5572879A - Electro-acoustic converter for azimuth measurement - Google Patents

Electro-acoustic converter for azimuth measurement

Info

Publication number
JPS5572879A
JPS5572879A JP14618678A JP14618678A JPS5572879A JP S5572879 A JPS5572879 A JP S5572879A JP 14618678 A JP14618678 A JP 14618678A JP 14618678 A JP14618678 A JP 14618678A JP S5572879 A JPS5572879 A JP S5572879A
Authority
JP
Japan
Prior art keywords
piezoelectric material
diaphragms
sound wave
pressure
diaphragm
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
JP14618678A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62470B2 (enrdf_load_stackoverflow
Inventor
Akira Kameyama
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 JP14618678A priority Critical patent/JPS5572879A/ja
Publication of JPS5572879A publication Critical patent/JPS5572879A/ja
Publication of JPS62470B2 publication Critical patent/JPS62470B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/801—Details
    • 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)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP14618678A 1978-11-27 1978-11-27 Electro-acoustic converter for azimuth measurement Granted JPS5572879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14618678A JPS5572879A (en) 1978-11-27 1978-11-27 Electro-acoustic converter for azimuth measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14618678A JPS5572879A (en) 1978-11-27 1978-11-27 Electro-acoustic converter for azimuth measurement

Publications (2)

Publication Number Publication Date
JPS5572879A true JPS5572879A (en) 1980-06-02
JPS62470B2 JPS62470B2 (enrdf_load_stackoverflow) 1987-01-08

Family

ID=15402073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14618678A Granted JPS5572879A (en) 1978-11-27 1978-11-27 Electro-acoustic converter for azimuth measurement

Country Status (1)

Country Link
JP (1) JPS5572879A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5797473A (en) * 1980-12-10 1982-06-17 Meidensha Electric Mfg Co Ltd Detector for position of sound source body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110087171A (zh) * 2018-01-25 2019-08-02 张侠辅 覆盖基体的3d振膜扬声器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5797473A (en) * 1980-12-10 1982-06-17 Meidensha Electric Mfg Co Ltd Detector for position of sound source body

Also Published As

Publication number Publication date
JPS62470B2 (enrdf_load_stackoverflow) 1987-01-08

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