FR990715A - Piezoelectric device with variable frequency - Google Patents

Piezoelectric device with variable frequency

Info

Publication number
FR990715A
FR990715A FR990715DA FR990715A FR 990715 A FR990715 A FR 990715A FR 990715D A FR990715D A FR 990715DA FR 990715 A FR990715 A FR 990715A
Authority
FR
France
Prior art keywords
variable frequency
piezoelectric device
piezoelectric
variable
frequency
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)
Inventor
Daniel-Rene Beretzki
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 filed Critical
Application granted granted Critical
Publication of FR990715A publication Critical patent/FR990715A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR990715D 1944-03-31 1944-03-31 Piezoelectric device with variable frequency Expired FR990715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR990715T 1944-03-31

Publications (1)

Publication Number Publication Date
FR990715A true FR990715A (en) 1951-09-25

Family

ID=9546457

Family Applications (1)

Application Number Title Priority Date Filing Date
FR990715D Expired FR990715A (en) 1944-03-31 1944-03-31 Piezoelectric device with variable frequency

Country Status (1)

Country Link
FR (1) FR990715A (en)

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