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SE9000235D0 - Acoustic transmitter - Google Patents

Acoustic transmitter

Info

Publication number
SE9000235D0
SE9000235D0 SE9000235A SE9000235A SE9000235D0 SE 9000235 D0 SE9000235 D0 SE 9000235D0 SE 9000235 A SE9000235 A SE 9000235A SE 9000235 A SE9000235 A SE 9000235A SE 9000235 D0 SE9000235 D0 SE 9000235D0
Authority
SE
Sweden
Prior art keywords
operating element
acoustic transmitter
transmitter
plates
acoustic
Prior art date
Application number
SE9000235A
Other languages
Swedish (sv)
Other versions
SE9000235L (en
SE466232B (en
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE9000235A priority Critical patent/SE466232B/en
Publication of SE9000235D0 publication Critical patent/SE9000235D0/en
Publication of SE9000235L publication Critical patent/SE9000235L/en
Publication of SE466232B publication Critical patent/SE466232B/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

An acoustic transmitter according to the invention comprises an operating element based on giant magnetostrictive and/or piezoelectric material 1 and two transmitter plates or one transmitter plate 4 and backing material 4 against which the operating element is held by a spring system situated between the plates which can consist of rings 5 concentric with the operating element. (Figure 2) <IMAGE>
SE9000235A 1990-01-22 1990-01-22 Acoustic transmitter with operating element based on giant magnetostrictive and/or piezoelectric material SE466232B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9000235A SE466232B (en) 1990-01-22 1990-01-22 Acoustic transmitter with operating element based on giant magnetostrictive and/or piezoelectric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000235A SE466232B (en) 1990-01-22 1990-01-22 Acoustic transmitter with operating element based on giant magnetostrictive and/or piezoelectric material

Publications (3)

Publication Number Publication Date
SE9000235D0 true SE9000235D0 (en) 1990-01-22
SE9000235L SE9000235L (en) 1991-07-23
SE466232B SE466232B (en) 1992-01-13

Family

ID=20378327

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000235A SE466232B (en) 1990-01-22 1990-01-22 Acoustic transmitter with operating element based on giant magnetostrictive and/or piezoelectric material

Country Status (1)

Country Link
SE (1) SE466232B (en)

Also Published As

Publication number Publication date
SE9000235L (en) 1991-07-23
SE466232B (en) 1992-01-13

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