NL6813993A - - Google Patents

Info

Publication number
NL6813993A
NL6813993A NL6813993A NL6813993A NL6813993A NL 6813993 A NL6813993 A NL 6813993A NL 6813993 A NL6813993 A NL 6813993A NL 6813993 A NL6813993 A NL 6813993A NL 6813993 A NL6813993 A NL 6813993A
Authority
NL
Netherlands
Application number
NL6813993A
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 filed Critical
Priority to NL6813993A priority Critical patent/NL6813993A/xx
Priority to DE19691948095 priority patent/DE1948095A1/de
Priority to US860863A priority patent/US3683129A/en
Priority to AT911569A priority patent/AT294212B/de
Priority to GB47432/69A priority patent/GB1276196A/en
Priority to FR6933363A priority patent/FR2019237A1/fr
Publication of NL6813993A publication Critical patent/NL6813993A/xx

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NL6813993A 1968-09-30 1968-09-30 NL6813993A (enrdf_load_stackoverflow)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL6813993A NL6813993A (enrdf_load_stackoverflow) 1968-09-30 1968-09-30
DE19691948095 DE1948095A1 (de) 1968-09-30 1969-09-23 Wandler zur Umwandlung von akustischen Schwingungen in elektrische Schwingungen und umgekehrt in Form einer Membran mit mindestens einer Schicht aus piezoelektrischem Material
US860863A US3683129A (en) 1968-09-30 1969-09-25 Electroacoustic transducer having a diaphragm made of at least one layer of piezoelectric material
AT911569A AT294212B (de) 1968-09-30 1969-09-26 Piezoelektrischer Wandler zur Umwandlung von akustischen Schwingungen in elektrische Schwingungen und umgekehrt
GB47432/69A GB1276196A (en) 1968-09-30 1969-09-26 Electro-acoustic transducer
FR6933363A FR2019237A1 (enrdf_load_stackoverflow) 1968-09-30 1969-09-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6813993A NL6813993A (enrdf_load_stackoverflow) 1968-09-30 1968-09-30

Publications (1)

Publication Number Publication Date
NL6813993A true NL6813993A (enrdf_load_stackoverflow) 1970-04-01

Family

ID=19804799

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6813993A NL6813993A (enrdf_load_stackoverflow) 1968-09-30 1968-09-30

Country Status (6)

Country Link
US (1) US3683129A (enrdf_load_stackoverflow)
AT (1) AT294212B (enrdf_load_stackoverflow)
DE (1) DE1948095A1 (enrdf_load_stackoverflow)
FR (1) FR2019237A1 (enrdf_load_stackoverflow)
GB (1) GB1276196A (enrdf_load_stackoverflow)
NL (1) NL6813993A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721840A (en) * 1971-09-14 1973-03-20 Nittan Co Ltd Sound generator
US4190782A (en) * 1978-07-24 1980-02-26 Telex Communications, Inc. Piezoelectric ceramic resonant transducer with stable frequency
US4384482A (en) 1979-11-27 1983-05-24 Imperial Clevite Inc. Vibrating transducer power supply for use in abnormal tire condition warning systems
US5128235A (en) * 1989-04-21 1992-07-07 E. I. Du Pont De Nemours And Company Method of forming a three-dimensional object comprising additives imparting reduction of shrinkage to photohardenable compositions
US4942066A (en) * 1989-04-21 1990-07-17 E. I. Du Pont De Nemours And Company Solid imaging method using photohardenable materials of self limiting thickness
WO2010007735A1 (ja) * 2008-07-14 2010-01-21 株式会社村田製作所 圧電発電装置
JP5837827B2 (ja) * 2012-01-06 2015-12-24 日本セラミック株式会社 ユニモルフ振動子と超音波送受信器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939106A (en) * 1943-10-06 1960-05-31 Bell Telephone Labor Inc High frequency electromechanical transducer
US2448352A (en) * 1946-03-26 1948-08-31 Sperry Prod Inc Piezoelectric crystal mounting means
US3030606A (en) * 1953-03-19 1962-04-17 Wilbur T Harris Hollow conical electromechanical transducer
US2967956A (en) * 1955-04-19 1961-01-10 Gulton Ind Inc Transducer
GB878087A (en) * 1957-12-09 1961-09-27 Raytheon Co Electroacoustical apparatus
US3007013A (en) * 1959-04-22 1961-10-31 Astatic Corp Microphone construction
US3206558A (en) * 1961-09-22 1965-09-14 Erie Technological Prod Inc Microphone
BE623017A (enrdf_load_stackoverflow) * 1961-09-29
US3305638A (en) * 1964-02-17 1967-02-21 Steven D Teachout Condenser microphone circuit with solid electrolyte battery polarizing source

Also Published As

Publication number Publication date
FR2019237A1 (enrdf_load_stackoverflow) 1970-06-26
DE1948095A1 (de) 1970-08-27
AT294212B (de) 1971-11-10
GB1276196A (en) 1972-06-01
US3683129A (en) 1972-08-08

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