GB725833A - Piezo electric transducers - Google Patents

Piezo electric transducers

Info

Publication number
GB725833A
GB725833A GB5305/53A GB530553A GB725833A GB 725833 A GB725833 A GB 725833A GB 5305/53 A GB5305/53 A GB 5305/53A GB 530553 A GB530553 A GB 530553A GB 725833 A GB725833 A GB 725833A
Authority
GB
United Kingdom
Prior art keywords
ceramic
electrodes
piezo
metal plate
electrode
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
GB5305/53A
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.)
Erie Resistor Corp
Original Assignee
Erie Resistor Corp
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 Erie Resistor Corp filed Critical Erie Resistor Corp
Publication of GB725833A publication Critical patent/GB725833A/en
Expired legal-status Critical Current

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
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

725,833. Piezo-electric transducers. ERIE RESISTOR CORPORATION. Feb. 25, 1953 [March 14, 1952], No. 5305/53. Drawings to Specification. Class 40 (4). [Also in Group XL (b)] In a piezo-electric transducer comprising a polarized barium titanate ceramic body having spaced electrodes thereon, at least one of these electrodes is mechanically and electrically connected to an adjacent electrode or to a metal plate by means of a cement consisting of a mixture of solventless varnish and conductive material set up in situ at a temperature below the Curie point of the ceramic so as not to destroy the polarization of the ceramic. In one embodiment, each electrode is cemented to a metal plate which serves to distribute applied mechanical energy over the whole area of the body. In a second embodiment, two of the ceramic bodies are arranged back-to-back and the adjacent electrodes are cemented together. The resulting transducer is supported by one of its ends in a phonograph tone-arm, the other end carrying a stylus, and the whole forming a phonograph pick-up.
GB5305/53A 1952-03-14 1953-02-25 Piezo electric transducers Expired GB725833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US276501A US2824980A (en) 1952-03-14 1952-03-14 Piezoelectric transducers

Publications (1)

Publication Number Publication Date
GB725833A true GB725833A (en) 1955-03-09

Family

ID=23056892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5305/53A Expired GB725833A (en) 1952-03-14 1953-02-25 Piezo electric transducers

Country Status (2)

Country Link
US (1) US2824980A (en)
GB (1) GB725833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043921A (en) * 1958-10-13 1962-07-10 Clairex Corp Piezoelectric transducer for stereophonic phonograph pickup

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246185A (en) * 1962-02-28 1966-04-12 Ray F Hinton Piezoelectric installation
US3270283A (en) * 1963-10-04 1966-08-30 Ikrath Kurt Mechanically-actuated radio transmitter
US3363139A (en) * 1964-05-28 1968-01-09 Edward L. Schiavone Piezoelectric transformer
US3441754A (en) * 1966-05-31 1969-04-29 Linden Lab Inc Base mounted piezoelectric transducer assembly having intermediate stress absorbing member
US3648279A (en) * 1970-05-14 1972-03-07 Rca Corp Multielectrode transducer element

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1495429A (en) * 1918-04-10 1924-05-27 Western Electric Co Piezophony
USRE20680E (en) * 1928-09-12 1938-03-29 Piezoelectric device
US2374637A (en) * 1931-09-10 1945-04-24 Harvey C Hayes Supersonic apparatus
US2589403A (en) * 1943-12-14 1952-03-18 Us Navy Transducer construction and method
NL72090C (en) * 1944-03-28
US2456995A (en) * 1946-04-18 1948-12-21 Brush Dev Co Piezoelectric crystal with moistureproof coatings
US2479926A (en) * 1947-10-11 1949-08-23 Brush Dev Co Electrotransducer and method of making same
US2484926A (en) * 1947-11-01 1949-10-18 F A Shimer Injector operating mechanism for internal-combustion engines
US2486150A (en) * 1947-12-31 1949-10-25 Brush Dev Co Piezoelectric transducer and method for producing the same
US2640165A (en) * 1948-05-29 1953-05-26 Gulton Mfg Corp Ceramic transducer element
US2497108A (en) * 1948-06-12 1950-02-14 Brush Dev Co Electromechanical transducer
US2498210A (en) * 1948-11-02 1950-02-21 Avco Mfg Corp Piezoelectric phonograph pickup device
US2569920A (en) * 1949-04-21 1951-10-02 Du Pont Coating compositions and processes of applying same to glass
BE495431A (en) * 1949-04-29
US2640889A (en) * 1949-05-17 1953-06-02 Zenith Radio Corp Piezoelectric transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043921A (en) * 1958-10-13 1962-07-10 Clairex Corp Piezoelectric transducer for stereophonic phonograph pickup

Also Published As

Publication number Publication date
US2824980A (en) 1958-02-25

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