GB677898A - Improvements in or relating to piezo-electric crystals - Google Patents

Improvements in or relating to piezo-electric crystals

Info

Publication number
GB677898A
GB677898A GB8669/49A GB866949A GB677898A GB 677898 A GB677898 A GB 677898A GB 8669/49 A GB8669/49 A GB 8669/49A GB 866949 A GB866949 A GB 866949A GB 677898 A GB677898 A GB 677898A
Authority
GB
United Kingdom
Prior art keywords
axis
face
prism
degrees
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
GB8669/49A
Other languages
English (en)
Inventor
Rudolf Bechmann
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.)
HER MAJESTYS POSTMASTER GENERA
Original Assignee
HER MAJESTYS POSTMASTER GENERA
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 HER MAJESTYS POSTMASTER GENERA filed Critical HER MAJESTYS POSTMASTER GENERA
Publication of GB677898A publication Critical patent/GB677898A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
GB8669/49A 1949-03-30 1949-03-30 Improvements in or relating to piezo-electric crystals Expired GB677898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB288571X 1949-03-30

Publications (1)

Publication Number Publication Date
GB677898A true GB677898A (en) 1952-08-27

Family

ID=10282276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8669/49A Expired GB677898A (en) 1949-03-30 1949-03-30 Improvements in or relating to piezo-electric crystals

Country Status (4)

Country Link
BE (1) BE494826A (enrdf_load_stackoverflow)
CH (1) CH288571A (enrdf_load_stackoverflow)
FR (1) FR1018829A (enrdf_load_stackoverflow)
GB (1) GB677898A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR1018829A (fr) 1953-01-13
CH288571A (de) 1953-01-31
BE494826A (enrdf_load_stackoverflow)

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