JPH0481400B2 - - Google Patents

Info

Publication number
JPH0481400B2
JPH0481400B2 JP60116131A JP11613185A JPH0481400B2 JP H0481400 B2 JPH0481400 B2 JP H0481400B2 JP 60116131 A JP60116131 A JP 60116131A JP 11613185 A JP11613185 A JP 11613185A JP H0481400 B2 JPH0481400 B2 JP H0481400B2
Authority
JP
Japan
Prior art keywords
signal
electrode
vibrator
amplitude
transformer
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 - Lifetime
Application number
JP60116131A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61184092A (ja
Inventor
Toyoki Sasakura
Yasuhiko Endo
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP11613185A priority Critical patent/JPS61184092A/ja
Priority to GB8602730A priority patent/GB2173068B/en
Priority to US06/826,413 priority patent/US4780860A/en
Priority to NO860442A priority patent/NO168794C/no
Publication of JPS61184092A publication Critical patent/JPS61184092A/ja
Publication of JPH0481400B2 publication Critical patent/JPH0481400B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/348—Circuits therefor using amplitude variation
    • 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
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP11613185A 1985-02-08 1985-05-29 送受波器 Granted JPS61184092A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11613185A JPS61184092A (ja) 1985-05-29 1985-05-29 送受波器
GB8602730A GB2173068B (en) 1985-02-08 1986-02-04 Beam forming device
US06/826,413 US4780860A (en) 1985-02-08 1986-02-05 Beam forming device
NO860442A NO168794C (no) 1985-02-08 1986-02-07 Straalebuntformende innretning.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11613185A JPS61184092A (ja) 1985-05-29 1985-05-29 送受波器

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2403685A Division JPS61184091A (ja) 1985-02-08 1985-02-08 送受波器

Publications (2)

Publication Number Publication Date
JPS61184092A JPS61184092A (ja) 1986-08-16
JPH0481400B2 true JPH0481400B2 (en]) 1992-12-22

Family

ID=14679483

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11613185A Granted JPS61184092A (ja) 1985-02-08 1985-05-29 送受波器

Country Status (1)

Country Link
JP (1) JPS61184092A (en])

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511271A (en) * 1978-07-12 1980-01-26 Nec Corp Ultrasonic light modulator
JPS5511270A (en) * 1978-07-12 1980-01-26 Nec Corp Ultrasonic light modulator
JPS57168232A (en) * 1981-04-09 1982-10-16 Matsushita Electric Ind Co Ltd Acoustooptic element

Also Published As

Publication number Publication date
JPS61184092A (ja) 1986-08-16

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