CH216057A - Method for eliminating the multiple waviness of piezoelectric crystals. - Google Patents

Method for eliminating the multiple waviness of piezoelectric crystals.

Info

Publication number
CH216057A
CH216057A CH216057DA CH216057A CH 216057 A CH216057 A CH 216057A CH 216057D A CH216057D A CH 216057DA CH 216057 A CH216057 A CH 216057A
Authority
CH
Switzerland
Prior art keywords
waviness
eliminating
piezoelectric crystals
piezoelectric
crystals
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer D Telefunken
Original Assignee
Telefunken Gmbh
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 Telefunken Gmbh filed Critical Telefunken Gmbh
Publication of CH216057A publication Critical patent/CH216057A/en

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
    • 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
    • H03H2003/0414—Resonance frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
CH216057D 1939-09-19 1940-09-06 Method for eliminating the multiple waviness of piezoelectric crystals. CH216057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE216057X 1939-09-19

Publications (1)

Publication Number Publication Date
CH216057A true CH216057A (en) 1941-07-31

Family

ID=5827210

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216057D CH216057A (en) 1939-09-19 1940-09-06 Method for eliminating the multiple waviness of piezoelectric crystals.

Country Status (3)

Country Link
CH (1) CH216057A (en)
FR (1) FR869784A (en)
NL (1) NL58617C (en)

Also Published As

Publication number Publication date
FR869784A (en) 1942-02-16
NL58617C (en)

Similar Documents

Publication Publication Date Title
FR866095A (en) Piezoelectric crystals
CH224999A (en) Procedure for marking magnetogram carriers.
CH232522A (en) Process for the production of diazo visor layers.
CH224657A (en) Process for the production of structures from polyurethanes.
CH254797A (en) Process for making cryolite.
CH218481A (en) Method of operating sprinkler evaporators.
CH214203A (en) Method for achieving glide path surfaces.
CH226687A (en) Process for the preparation of methyl isocyanate.
CH216057A (en) Method for eliminating the multiple waviness of piezoelectric crystals.
CH263775A (en) Process for the production of the silicon bodies of crystal rectifiers.
CH263776A (en) Process for the manufacture of crystal rectifiers.
CH220047A (en) Process for the preparation of an aryloxy-alkylamino-butanone.
CH239848A (en) Process for the preparation of 6-sulfanilamido-4-methyl-pyrimidine.
CH224979A (en) Process for the production of diazotypes.
CH224702A (en) Process for improving the magnetizability of iron-cobalt alloys.
AT173227B (en) Process for the fine cleaning of nickel electrolyte
FR871296A (en) Piezoelectric laryngophone
CH225775A (en) Process for the production of zeolites.
AT163413B (en) Process for the preparation of new p-aminobenzenesulfonacylamides
CH236224A (en) Process for the preparation of acetyl-iso-malodinitrile.
AT164789B (en) Process for the preparation of sulfonyl derivatives of the thiazole series
CH236716A (en) Process for the production of x-chloro-e-methyl-e-caprolactam.
CH236713A (en) Process for the production of a-monochloro-e-caprolactam.
CH224638A (en) Process for the preparation of p-acetylaminobenzenesulfonylurea.
AT168824B (en) Process for the preparation of alkali salts of p-sulfonamides of the thiazole series