FR65072E - éléments piézo-électriques - Google Patents

éléments piézo-électriques

Info

Publication number
FR65072E
FR65072E FR65072DA FR65072E FR 65072 E FR65072 E FR 65072E FR 65072D A FR65072D A FR 65072DA FR 65072 E FR65072 E FR 65072E
Authority
FR
France
Prior art keywords
piezoelectric elements
piezoelectric
elements
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)
Inventor
Leonard Robert Lovelock
Walter Raymond Mason Tulby
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 FR65072E publication Critical patent/FR65072E/fr
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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)
FR65072D 1952-02-25 1953-02-25 éléments piézo-électriques Expired FR65072E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB314778X 1952-02-25

Publications (1)

Publication Number Publication Date
FR65072E true FR65072E (fr) 1956-01-26

Family

ID=10323686

Family Applications (1)

Application Number Title Priority Date Filing Date
FR65072D Expired FR65072E (fr) 1952-02-25 1953-02-25 éléments piézo-électriques

Country Status (6)

Country Link
BE (1) BE517928A (fr)
CH (1) CH314778A (fr)
DE (1) DE972431C (fr)
FR (1) FR65072E (fr)
GB (1) GB700493A (fr)
NL (2) NL174676B (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE490579C (de) * 1928-06-16 1930-01-30 Siemens & Halske Akt Ges Piezoelektrische Kristallanordnung
FR861808A (fr) * 1939-08-02 1941-02-18 Materiel Telephonique éléments piezo-électriques
DE863521C (de) * 1951-01-10 1953-01-19 Sueddeutsche App Fabrik G M B Piezoelektrisches Element

Also Published As

Publication number Publication date
GB700493A (en) 1953-12-02
DE972431C (de) 1959-07-23
BE517928A (fr)
NL174676B (nl)
CH314778A (de) 1956-06-30
NL90114C (fr)

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