JPH0412828B2 - - Google Patents

Info

Publication number
JPH0412828B2
JPH0412828B2 JP60085041A JP8504185A JPH0412828B2 JP H0412828 B2 JPH0412828 B2 JP H0412828B2 JP 60085041 A JP60085041 A JP 60085041A JP 8504185 A JP8504185 A JP 8504185A JP H0412828 B2 JPH0412828 B2 JP H0412828B2
Authority
JP
Japan
Prior art keywords
signal
amplitude
electrode
transmitting
vibrator
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
JP60085041A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61243383A (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 JP8504185A priority Critical patent/JPS61243383A/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 JPS61243383A publication Critical patent/JPS61243383A/ja
Publication of JPH0412828B2 publication Critical patent/JPH0412828B2/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)
JP8504185A 1985-02-08 1985-04-19 送受波器 Granted JPS61243383A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8504185A JPS61243383A (ja) 1985-04-19 1985-04-19 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
JP8504185A JPS61243383A (ja) 1985-04-19 1985-04-19 送受波器

Publications (2)

Publication Number Publication Date
JPS61243383A JPS61243383A (ja) 1986-10-29
JPH0412828B2 true JPH0412828B2 (enrdf_load_stackoverflow) 1992-03-05

Family

ID=13847600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8504185A Granted JPS61243383A (ja) 1985-02-08 1985-04-19 送受波器

Country Status (1)

Country Link
JP (1) JPS61243383A (enrdf_load_stackoverflow)

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
JPS61243383A (ja) 1986-10-29

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