JPS62470B2 - - Google Patents

Info

Publication number
JPS62470B2
JPS62470B2 JP14618678A JP14618678A JPS62470B2 JP S62470 B2 JPS62470 B2 JP S62470B2 JP 14618678 A JP14618678 A JP 14618678A JP 14618678 A JP14618678 A JP 14618678A JP S62470 B2 JPS62470 B2 JP S62470B2
Authority
JP
Japan
Prior art keywords
transducer
signal
piezoelectric material
pressure gradient
signals
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.)
Expired
Application number
JP14618678A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5572879A (en
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
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 JPS5572879A (en) 1980-06-02
JPS62470B2 true 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
CN110087171A (zh) * 2018-01-25 2019-08-02 张侠辅 覆盖基体的3d振膜扬声器

Families Citing this family (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

Cited By (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

Also Published As

Publication number Publication date
JPS5572879A (en) 1980-06-02

Similar Documents

Publication Publication Date Title
US4833659A (en) Sonar apparatus
US4328569A (en) Array shading for a broadband constant directivity transducer
US4801835A (en) Ultrasonic probe using piezoelectric composite material
US4268912A (en) Directional hydrophone suitable for flush mounting
CN111403593B (zh) 一种用于制作高频宽带高灵敏度水声换能器的敏感元件及其制备方法
JP6943398B2 (ja) 小型空間音源方位検出装置及びその方法
JPS60236600A (ja) 圧電式空気超音波変換器
US4709359A (en) End weighted reed sound transducer
CN214407753U (zh) 一种新型仿生矢量水听器
US4446544A (en) Small diameter, low frequency multimode hydrophone
RU2509320C1 (ru) Цифровой комбинированный векторный приемник с синтезированными каналами
JPS62470B2 (enrdf_load_stackoverflow)
JPS59143496A (ja) 速度水中聴音機
US3803546A (en) Broad band hydrophone
JP4291500B2 (ja) 広帯域送受波器
JPH09271098A (ja) 電気音響変換器
US3704385A (en) Piezoelectric transducer assembly with phase shifting accoustical parts
GB2130844A (en) Velocity hydrophone
RU2110888C1 (ru) Преобразователь фазированной антенны для доплеровского лага
JPS6118703B2 (enrdf_load_stackoverflow)
JPS5824785Y2 (ja) アレ−形の超音波探触子
JP2626026B2 (ja) 送受波器
JPS6126397A (ja) 超音波送受波器
JPS6312438B2 (enrdf_load_stackoverflow)
JP3002722B2 (ja) 円筒形カーディオイドハイドロホン