GB700493A - Improvements in or relating to piezo electric elements - Google Patents

Improvements in or relating to piezo electric elements

Info

Publication number
GB700493A
GB700493A GB4840/52A GB484052A GB700493A GB 700493 A GB700493 A GB 700493A GB 4840/52 A GB4840/52 A GB 4840/52A GB 484052 A GB484052 A GB 484052A GB 700493 A GB700493 A GB 700493A
Authority
GB
United Kingdom
Prior art keywords
disc
crystal
resin
elastomer
piezo
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
GB4840/52A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB700493A publication Critical patent/GB700493A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
  • Adhesives Or Adhesive Processes (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)
GB4840/52A 1952-02-25 1952-02-25 Improvements in or relating to piezo electric elements Expired GB700493A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB700493A true GB700493A (en) 1953-12-02

Family

ID=10323686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4840/52A Expired GB700493A (en) 1952-02-25 1952-02-25 Improvements in or relating to piezo electric elements

Country Status (6)

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

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
FR65072E (fr) 1956-01-26
NL90114C (https=)
CH314778A (de) 1956-06-30
DE972431C (de) 1959-07-23
BE517928A (https=)
NL174676B (nl)

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