GB631346A - Piezoelectric crystal elements and apparatus - Google Patents

Piezoelectric crystal elements and apparatus

Info

Publication number
GB631346A
GB631346A GB7156/47A GB715647A GB631346A GB 631346 A GB631346 A GB 631346A GB 7156/47 A GB7156/47 A GB 7156/47A GB 715647 A GB715647 A GB 715647A GB 631346 A GB631346 A GB 631346A
Authority
GB
United Kingdom
Prior art keywords
march
axis
piezoelectric crystal
crystal elements
plates
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
GB7156/47A
Other languages
English (en)
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
Publication of GB631346A publication Critical patent/GB631346A/en
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
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • 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
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
GB7156/47A 1946-03-28 1947-03-14 Piezoelectric crystal elements and apparatus Expired GB631346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US657885A US2454328A (en) 1946-03-28 1946-03-28 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
GB631346A true GB631346A (en) 1949-11-01

Family

ID=24639055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7156/47A Expired GB631346A (en) 1946-03-28 1947-03-14 Piezoelectric crystal elements and apparatus

Country Status (4)

Country Link
US (1) US2454328A (enrdf_load_stackoverflow)
BE (1) BE469891A (enrdf_load_stackoverflow)
FR (1) FR937869A (enrdf_load_stackoverflow)
GB (1) GB631346A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645035A (en) * 1948-03-02 1953-07-14 Machf Reineveld N V Drying apparatus for laundry work

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309467A (en) * 1941-07-25 1943-01-26 Bell Telephone Labor Inc Rochelle salt piezoelectric crystal apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645035A (en) * 1948-03-02 1953-07-14 Machf Reineveld N V Drying apparatus for laundry work

Also Published As

Publication number Publication date
FR937869A (fr) 1948-08-30
US2454328A (en) 1948-11-23
BE469891A (enrdf_load_stackoverflow)

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