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GB1358168A - Piezoelectric element and method of manufacturing such an element - Google Patents

Piezoelectric element and method of manufacturing such an element

Info

Publication number
GB1358168A
GB1358168A GB4624571A GB4624571A GB1358168A GB 1358168 A GB1358168 A GB 1358168A GB 4624571 A GB4624571 A GB 4624571A GB 4624571 A GB4624571 A GB 4624571A GB 1358168 A GB1358168 A GB 1358168A
Authority
GB
United Kingdom
Prior art keywords
conductors
oct
piezoelectric
filled
space
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
GB4624571A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1358168A publication Critical patent/GB1358168A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0655—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element of cylindrical shape
    • 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
    • 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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • 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
    • C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
    • 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
    • C04B35/51—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on compounds of actinides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric
    • H01G7/026—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric with ceramic dielectric
    • 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
    • H10N30/01—Manufacture or treatment
    • H10N30/03—Assembling devices that include piezoelectric or electrostrictive parts
    • 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
    • H10N30/01—Manufacture or treatment
    • H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
    • H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
    • 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
    • H10N30/60—Piezoelectric or electrostrictive devices having a coaxial cable structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Insulated Conductors (AREA)
  • Ropes Or Cables (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1358168 Piezoelectric transducers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Oct 1971 [6 Oct 1970] 46245/71 Heading H4J [Also in Divisions G1 and H1] A piezoelectric element comprises coaxial electrodes 1, 2 defining a space 3 filled with radially polarized powdered ceramic piezoelectric material. The latter may comprise barium titanate with or without addition of lead, or lead titanate/zirconate. The conductors may be made of titanium, copper or nickel. After the space between the conductors has been filled, the assembly is reduced in diameter, e.g. by a factor of about 7, using known mechanical methods. The tubular element obtained in this manner is radially polarized by the "hot" method in which the polarizing voltage is applied as the element cools from a temperature above the Curie point. The finished element may be flexible and is responsive to hydrostatic pressure or to pressure in any radial direction.
GB4624571A 1970-10-06 1971-10-05 Piezoelectric element and method of manufacturing such an element Expired GB1358168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7036004A FR2109176A5 (en) 1970-10-06 1970-10-06

Publications (1)

Publication Number Publication Date
GB1358168A true GB1358168A (en) 1974-06-26

Family

ID=9062326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4624571A Expired GB1358168A (en) 1970-10-06 1971-10-05 Piezoelectric element and method of manufacturing such an element

Country Status (9)

Country Link
JP (2) JPS5032597B1 (en)
AU (1) AU460766B2 (en)
CA (1) CA938380A (en)
CH (1) CH531265A (en)
DK (1) DK135918B (en)
FR (1) FR2109176A5 (en)
GB (1) GB1358168A (en)
IT (1) IT939917B (en)
NL (1) NL7113559A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123602A (en) * 1982-07-06 1984-02-01 Raytheon Co Piezoelectric transducer and method of making same
GB2150346A (en) * 1983-11-22 1985-06-26 Raychem Ltd Piezoelectric coaxial cable
GB2150345A (en) * 1983-11-22 1985-06-26 Raychem Ltd Piezoelectric coaxial cable
US4688306A (en) * 1984-07-06 1987-08-25 Raychem Corporation Method of preparing a piezoelectric device
US5024872A (en) * 1986-02-27 1991-06-18 Raytheon Company Sheets of stretched and polarized polymer materials and method of manufacturer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507082A (en) * 1973-05-23 1975-01-24
JPS5136583A (en) * 1974-09-21 1976-03-27 Shin Meiwa Ind Co Ltd
FR2677769B1 (en) * 1991-06-12 1994-12-30 Thermocoax Cie SHOCK RECORDING SYSTEM.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS449090Y1 (en) * 1964-09-04 1969-04-14

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123602A (en) * 1982-07-06 1984-02-01 Raytheon Co Piezoelectric transducer and method of making same
GB2150346A (en) * 1983-11-22 1985-06-26 Raychem Ltd Piezoelectric coaxial cable
GB2150345A (en) * 1983-11-22 1985-06-26 Raychem Ltd Piezoelectric coaxial cable
US4629925A (en) * 1983-11-22 1986-12-16 Raychem Corporation Piezoelectric coaxial cable
US4715098A (en) * 1983-11-22 1987-12-29 Raychem Limited Method of making coaxial cable
US4688306A (en) * 1984-07-06 1987-08-25 Raychem Corporation Method of preparing a piezoelectric device
US5024872A (en) * 1986-02-27 1991-06-18 Raytheon Company Sheets of stretched and polarized polymer materials and method of manufacturer

Also Published As

Publication number Publication date
NL7113559A (en) 1972-04-10
DE2148555B2 (en) 1975-09-11
CA938380A (en) 1973-12-11
JPS5032597B1 (en) 1975-10-22
CH531265A (en) 1972-11-30
IT939917B (en) 1973-02-10
JPS478022A (en) 1972-04-27
DK135918C (en) 1977-12-12
AU3418971A (en) 1973-04-12
FR2109176A5 (en) 1972-05-26
DK135918B (en) 1977-07-11
DE2148555A1 (en) 1972-04-13
AU460766B2 (en) 1975-05-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee