GB1299056A - Piezoelectric extensional mode quartz crystal plate - Google Patents

Piezoelectric extensional mode quartz crystal plate

Info

Publication number
GB1299056A
GB1299056A GB2629671A GB2629671A GB1299056A GB 1299056 A GB1299056 A GB 1299056A GB 2629671 A GB2629671 A GB 2629671A GB 2629671 A GB2629671 A GB 2629671A GB 1299056 A GB1299056 A GB 1299056A
Authority
GB
United Kingdom
Prior art keywords
plate
piezoelectric
quartz crystal
extensional mode
mode quartz
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
GB2629671A
Inventor
Jiri Zelenka
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.)
Tesla AS
Original Assignee
Tesla AS
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 Tesla AS filed Critical Tesla AS
Publication of GB1299056A publication Critical patent/GB1299056A/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 devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • H03H9/02023—Characteristics of piezoelectric layers, e.g. cutting angles consisting of quartz

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1299056 Piezoelectric resonators TESLA NARODNI PODNIK 19 April 1971 [20 April 1970] 26296/71 Heading H1E A piezoelectric extensional mode quartz crystal plate constructed to minimize temperature dependence and comprising electrodes producing an electric field in the direction of the plate thickness, is cut such that the thickness is less than 1 degree from the X-axis; the plate makes an angle of between + 10 degrees and + 20 degrees with the Y-axis; and the ratio of the plate width to length (w/l) is between 0À32 and 0À50. The crystal plates may be used for the frequency range 50 kHz to 200 kHz. The plate may have the configuration of a rectangle or a trapezium.
GB2629671A 1970-04-20 1971-04-19 Piezoelectric extensional mode quartz crystal plate Expired GB1299056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS264870 1970-04-20

Publications (1)

Publication Number Publication Date
GB1299056A true GB1299056A (en) 1972-12-06

Family

ID=5364210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2629671A Expired GB1299056A (en) 1970-04-20 1971-04-19 Piezoelectric extensional mode quartz crystal plate

Country Status (4)

Country Link
DE (1) DE2116078B2 (en)
FR (1) FR2089930A5 (en)
GB (1) GB1299056A (en)
NL (1) NL7104491A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2418277C3 (en) * 1973-04-16 1985-08-01 Kabushiki Kaisha Suwa Seikosha, Shinjuku, Tokio/Tokyo Quartz crystal flexural oscillator and process for its manufacture

Also Published As

Publication number Publication date
NL7104491A (en) 1971-10-22
DE2116078A1 (en) 1971-11-11
FR2089930A5 (en) 1972-01-07
DE2116078B2 (en) 1975-03-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees