CH300405A - Method for polarizing a body made of ceramic piezoelectric material. - Google Patents

Method for polarizing a body made of ceramic piezoelectric material.

Info

Publication number
CH300405A
CH300405A CH300405DA CH300405A CH 300405 A CH300405 A CH 300405A CH 300405D A CH300405D A CH 300405DA CH 300405 A CH300405 A CH 300405A
Authority
CH
Switzerland
Prior art keywords
polarizing
piezoelectric material
body made
ceramic piezoelectric
ceramic
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Nv filed Critical Philips Nv
Publication of CH300405A publication Critical patent/CH300405A/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
CH300405D 1951-04-27 1952-04-25 Method for polarizing a body made of ceramic piezoelectric material. CH300405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US223389A US2646610A (en) 1951-04-27 1951-04-27 Method of polarizing ceramic transducers

Publications (1)

Publication Number Publication Date
CH300405A true CH300405A (en) 1954-07-31

Family

ID=22836285

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300405D CH300405A (en) 1951-04-27 1952-04-25 Method for polarizing a body made of ceramic piezoelectric material.

Country Status (7)

Country Link
US (1) US2646610A (en)
BE (1) BE510981A (en)
CH (1) CH300405A (en)
DE (1) DE1000621B (en)
FR (1) FR1058988A (en)
GB (1) GB688179A (en)
NL (1) NL86434C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071841A (en) * 1957-02-16 1963-01-08 Philips Corp Method of longitudinally pre-polarizing bodies consisting of at least one layer of piezoelectric material
US3193912A (en) * 1963-01-04 1965-07-13 Lab De Rech S Physiques Electro-static particle collecting device
US4734611A (en) * 1985-12-20 1988-03-29 Siemens Aktiengesellschaft Ultrasonic sensor
US5668439A (en) * 1995-10-03 1997-09-16 Xerox Corporation High voltage power supply

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532100A (en) * 1947-05-29 1950-11-28 Indiana Steel Products Co Electromagnetic transducer head
US2521329A (en) * 1947-08-15 1950-09-05 Brush Dev Co Repolarized transducer system
USRE23813E (en) * 1947-12-26 1954-04-20 Piezoelectric transducer and method for producing same

Also Published As

Publication number Publication date
NL86434C (en)
DE1000621B (en) 1957-01-10
FR1058988A (en) 1954-03-22
BE510981A (en)
US2646610A (en) 1953-07-28
GB688179A (en) 1953-02-25

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