GB752040A - Piezoelectric transducer - Google Patents

Piezoelectric transducer

Info

Publication number
GB752040A
GB752040A GB20763/54A GB2076354A GB752040A GB 752040 A GB752040 A GB 752040A GB 20763/54 A GB20763/54 A GB 20763/54A GB 2076354 A GB2076354 A GB 2076354A GB 752040 A GB752040 A GB 752040A
Authority
GB
United Kingdom
Prior art keywords
electrodes
strip
length
july
potential
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
GB20763/54A
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.)
Electric Machinery Manufacturing Co
Original Assignee
Electric Machinery Manufacturing Co
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 Electric Machinery Manufacturing Co filed Critical Electric Machinery Manufacturing Co
Publication of GB752040A publication Critical patent/GB752040A/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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
    • C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

752,040. Piezo-electric crystals. ELECTRIC MACHINERY MFG. CO. July 16, 1954 [July 20, 1953], No. 20763/54. Class 40 (8). A bender-type transducer comprises elements 11, 12 of barium or strontium titanate or a mixture thereof or barium zirconate joined together by a layer 13 of thermosetting resin. The element 11 has electrodes 14, 15 and the element 12 comb-like electrodes 18a, 18b so arranged that a source of potential 20 creates a voltage gradient across the element 11, and parallel to the length of the element 12. Thus the length of the strip 11 decreases while that of the strip 12 increases producing a large deflection in the transducer. In a modification, Fig. 5, a second series of transverse electrodes 25a, 25b are formed on the element 12, and are connected to electrodes 18. This arrangement produces a stronger voltage gradient parallel to the length of the element 12. In a further modification, Fig. 7, a strip of brass 30 is placed between the elements in electrical contact with the electrodes on each element. The potential may thus be applied between strip 30 and electrode 14 and between strip 30 and electrodes 18a, 18b.
GB20763/54A 1953-07-20 1954-07-16 Piezoelectric transducer Expired GB752040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US369123A US2836737A (en) 1953-07-20 1953-07-20 Piezoelectric transducer

Publications (1)

Publication Number Publication Date
GB752040A true GB752040A (en) 1956-07-04

Family

ID=23454172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20763/54A Expired GB752040A (en) 1953-07-20 1954-07-16 Piezoelectric transducer

Country Status (2)

Country Link
US (1) US2836737A (en)
GB (1) GB752040A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042550A (en) * 1958-05-23 1962-07-03 Corning Glass Works Solid delay line improvements
US3352162A (en) * 1958-10-29 1967-11-14 Avco Mfg Corp Means for and method of detecting rotation
US3117768A (en) * 1960-11-21 1964-01-14 Branson Instr Ultrasonic transducers
US3153156A (en) * 1962-05-17 1964-10-13 Frank W Watlington Pressure-proof ceramic transducer
DE1951219U (en) * 1965-01-28 1966-12-08 Siemens Ag PIEZOELECTRIC RELAY.
US3654574A (en) * 1970-08-18 1972-04-04 Zenith Radio Corp Acoustic-wave transmitting system having curvilinear transducers
US3806907A (en) * 1972-03-23 1974-04-23 Texas Instruments Inc Perimeter intrusion detection system with common mode rejection
US3930982A (en) * 1973-04-06 1976-01-06 The Carborundum Company Ferroelectric apparatus for dielectrophoresis particle extraction
GB1463995A (en) * 1974-03-12 1977-02-09 Rion Co Piezoelectric ignition device
JPS51466A (en) * 1974-06-22 1976-01-06 Rion Co Seiatsushikikodenatsuhatsuseisochi
DE2742492C3 (en) * 1977-03-24 1984-07-19 Kohji Yokosuka Kanagawa Toda Ultrasonic transducer
US4491761A (en) * 1981-12-28 1985-01-01 United Technologies Corporation Planar piezoelectric deflector with arrays of alternate piezoelectric effect
JPS612376A (en) * 1984-06-14 1986-01-08 Ngk Spark Plug Co Ltd Sheet-shaped piezoelectric body
US4575697A (en) * 1984-06-18 1986-03-11 Sperry Corporation Electrically controlled phase shifter
JPS6116429A (en) * 1984-06-29 1986-01-24 オムロン株式会社 Drive circuit of 2 layer bonded electrostrictive element
US5653537A (en) * 1995-03-17 1997-08-05 Ircon, Inc. Non-contacting infrared temperature thermometer detector apparatus
US5812270A (en) * 1997-09-17 1998-09-22 Ircon, Inc. Window contamination detector
DE19745468C1 (en) * 1997-10-15 1999-04-15 Daimler Chrysler Ag Piezoelectric actuator
US20020074897A1 (en) * 2000-12-15 2002-06-20 Qing Ma Micro-electromechanical structure resonator frequency adjustment using radient energy trimming and laser/focused ion beam assisted deposition
WO2003079409A2 (en) * 2002-03-15 2003-09-25 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Electro-active device using radial electric field piezo-diaphragm for control of fluid movement
AU2003218120A1 (en) * 2002-03-15 2003-09-29 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Electro-active device using radial electric field piezo-diaphragm for sonic applications
US7038358B2 (en) 2002-03-15 2006-05-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Electro-active transducer using radial electric field to produce/sense out-of-plane transducer motion
JP2011004035A (en) * 2009-06-17 2011-01-06 Seiko Epson Corp Flexural vibration piece, and method for manufacturing flexural vibration piece
US8987976B2 (en) * 2011-09-23 2015-03-24 Qualcomm Incorporated Piezoelectric resonator having combined thickness and width vibrational modes
US20130135264A1 (en) * 2011-11-29 2013-05-30 Qualcomm Mems Technologies, Inc. Multilayer piezoelectric thin film resonator structure
US10477321B2 (en) * 2018-03-05 2019-11-12 Google Llc Driving distributed mode loudspeaker actuator that includes patterned electrodes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185966A (en) * 1938-05-21 1940-01-02 Henry B Babson Vibratory element
USRE23813E (en) * 1947-12-26 1954-04-20 Piezoelectric transducer and method for producing 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
US2640889A (en) * 1949-05-17 1953-06-02 Zenith Radio Corp Piezoelectric transducer
GB678825A (en) * 1950-04-14 1952-09-10 Gen Electric Co Ltd Improvements in or relating to piezo electric units

Also Published As

Publication number Publication date
US2836737A (en) 1958-05-27

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