FR820889A - Piezoelectric crystals and their supports - Google Patents

Piezoelectric crystals and their supports

Info

Publication number
FR820889A
FR820889A FR820889DA FR820889A FR 820889 A FR820889 A FR 820889A FR 820889D A FR820889D A FR 820889DA FR 820889 A FR820889 A FR 820889A
Authority
FR
France
Prior art keywords
supports
piezoelectric crystals
piezoelectric
crystals
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR820889A publication Critical patent/FR820889A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders or supports
    • H03H9/09—Elastic or damping supports
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz
    • 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

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Insulated Conductors (AREA)
FR820889D 1936-04-22 1937-04-21 Piezoelectric crystals and their supports Expired FR820889A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75727A US2123236A (en) 1936-04-22 1936-04-22 Crystal holder
US77325A US2268365A (en) 1936-04-22 1936-05-01 Piezoelectric apparatus

Publications (1)

Publication Number Publication Date
FR820889A true FR820889A (en) 1937-11-20

Family

ID=41119701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR820889D Expired FR820889A (en) 1936-04-22 1937-04-21 Piezoelectric crystals and their supports

Country Status (4)

Country Link
US (2) US2123236A (en)
DE (2) DE735908C (en)
FR (1) FR820889A (en)
GB (2) GB471465A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482828A (en) * 1945-04-03 1949-09-27 Us Sec War Mounting for piezo electric elements
US2437218A (en) * 1946-01-28 1948-03-02 Premier Crystal Lab Inc Method and means for mounting piezo crystal plates
GB679575A (en) * 1950-01-20 1952-09-17 Standard Telephones Cables Ltd Improvements in or relating to piezo-electric crystal plates
US2931924A (en) * 1958-06-25 1960-04-05 Philip A Simpson Quartz oscillator unit for operation at low temperatures
US3201984A (en) * 1962-03-19 1965-08-24 Bendix Corp Electric sensors and circuits
FR2462055A1 (en) * 1979-07-18 1981-02-06 France Etat AUTOTHERMOSTATE HIGH FREQUENCY OSCILLATOR
US4373119A (en) * 1980-12-05 1983-02-08 Motorola, Inc. Adjustable transducer
JPS5984921U (en) * 1982-11-27 1984-06-08 株式会社村田製作所 Oscillator support structure
JPH06350376A (en) * 1993-01-25 1994-12-22 Matsushita Electric Ind Co Ltd Piezoelectric device air-tightly sealed and air-tight sealing package
EP0651449B1 (en) * 1993-11-01 2002-02-13 Matsushita Electric Industrial Co., Ltd. Electronic component and method for producing the same
DE69409215T2 (en) * 1993-12-06 1998-07-16 Matsushita Electric Ind Co Ltd Hybrid magnetic structure and its manufacturing process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB239175A (en) * 1924-08-26 1926-09-30 Western Electric Co Ltd Improvements in piezo-electric frequency control devices
US1925577A (en) * 1930-10-17 1933-09-05 American Optical Corp Oscillating crystal
US2018246A (en) * 1934-10-09 1935-10-22 Westinghouse Electric & Mfg Co Quartz crystal manufacture

Also Published As

Publication number Publication date
US2123236A (en) 1938-07-12
GB479637A (en) 1938-02-09
DE756196C (en) 1953-02-16
US2268365A (en) 1941-12-30
DE735908C (en) 1943-06-01
GB471465A (en) 1937-09-06

Similar Documents

Publication Publication Date Title
NL50715C (en) Vibrator
FR820889A (en) Piezoelectric crystals and their supports
FR808284A (en) Vaulted
FR826269A (en) Calendar
FR836269A (en) Piezoelectric crystals
AT173197B (en) Piezoelectric quartz crystal element
FI18324A (en) Dockhuvud med utbytbara delar
FI17858A (en) Frihjulsnav med bakåttrampningsbroms
FI19229A (en) Elektriskt urladdningsrör med en sekundäremissionselektrod
FI19220A (en) Radiomottagningskoppling med automatisk bandbreddreglering
FI17810A (en) Frihjulsbromsnav med fjädrande friktionshämning
FI18308A (en) Brasrost med kokplatta
FI18070A (en) Med varmvattenleveransanläggning kombinerad radiatoranläggning
FI17860A (en) Frihjulsbromsnav med frånkopplingsbar bromskoppling
FI17859A (en) Frihjulsbromsnav med tandkoppling
FI16916A (en) Velocipedfrihjulsnav med tillbakatrampnigsbroms
FI16917A (en) Enspårigt motorfordon med katerpillarliknande kedjedrev
FI17774A (en) Flygmaskinstyrning med två styrställ
FI17036A (en) Frihjulsnav med broms
FI17041A (en) Strumphållare med bysthållare
FI17067A (en) Velocipedfrihjulsnav med tillbakatrampningsbroms
FR804815A (en) Catalog calendar
DK55612C (en) Filter with piezoelectric crystals.
FI18340A (en) Harrow
FI16906A (en) Harrow