BE510981A - - Google Patents

Info

Publication number
BE510981A
BE510981A BE510981DA BE510981A BE 510981 A BE510981 A BE 510981A BE 510981D A BE510981D A BE 510981DA BE 510981 A BE510981 A BE 510981A
Authority
BE
Belgium
Application number
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.)
Publication of BE510981A publication Critical patent/BE510981A/xx

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)
BE510981D 1951-04-27 BE510981A (ko)

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
BE510981A true BE510981A (ko)

Family

ID=22836285

Family Applications (1)

Application Number Title Priority Date Filing Date
BE510981D BE510981A (ko) 1951-04-27

Country Status (7)

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

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
NL81373C (ko) * 1947-12-26

Also Published As

Publication number Publication date
NL86434C (ko)
DE1000621B (de) 1957-01-10
US2646610A (en) 1953-07-28
FR1058988A (fr) 1954-03-22
CH300405A (de) 1954-07-31
GB688179A (en) 1953-02-25

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