FR948694A - Support de cristal piézoélectrique à intervalle d'air variable - Google Patents

Support de cristal piézoélectrique à intervalle d'air variable

Info

Publication number
FR948694A
FR948694A FR948694DA FR948694A FR 948694 A FR948694 A FR 948694A FR 948694D A FR948694D A FR 948694DA FR 948694 A FR948694 A FR 948694A
Authority
FR
France
Prior art keywords
air gap
piezoelectric crystal
variable air
crystal holder
gap piezoelectric
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
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR948694A publication Critical patent/FR948694A/fr
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
    • 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
    • H03H3/04—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 for obtaining desired frequency or temperature coefficient

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR948694D 1941-09-03 1947-07-01 Support de cristal piézoélectrique à intervalle d'air variable Expired FR948694A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US409370A US2319357A (en) 1941-09-03 1941-09-03 Variable air-gap crystal holder

Publications (1)

Publication Number Publication Date
FR948694A true FR948694A (fr) 1949-08-08

Family

ID=23620184

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948694D Expired FR948694A (fr) 1941-09-03 1947-07-01 Support de cristal piézoélectrique à intervalle d'air variable

Country Status (4)

Country Link
US (1) US2319357A (enrdf_load_stackoverflow)
FR (1) FR948694A (enrdf_load_stackoverflow)
GB (1) GB625533A (enrdf_load_stackoverflow)
NL (1) NL65447C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427825A (en) * 1943-11-06 1947-09-23 Rca Corp Art of mounting piezoelectric crystals

Also Published As

Publication number Publication date
NL65447C (enrdf_load_stackoverflow)
GB625533A (en) 1949-06-29
US2319357A (en) 1943-05-18

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