GB1247217A - Piezoelectric quartz-crystal unit - Google Patents

Piezoelectric quartz-crystal unit

Info

Publication number
GB1247217A
GB1247217A GB254369A GB254369A GB1247217A GB 1247217 A GB1247217 A GB 1247217A GB 254369 A GB254369 A GB 254369A GB 254369 A GB254369 A GB 254369A GB 1247217 A GB1247217 A GB 1247217A
Authority
GB
United Kingdom
Prior art keywords
side surfaces
bar
crystal
piezo
axis
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
GB254369A
Inventor
Petr Grigorievich Pozdnyakov
Valentina Georgievna Androsova
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB254369A priority Critical patent/GB1247217A/en
Publication of GB1247217A publication Critical patent/GB1247217A/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
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz

Landscapes

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

Abstract

1,247,217. Piezo-electric crystals. P. G. POZDNYAKOV, and V. G. ANDROSOVA. 16 Jan., 1969, No. 2543/69. Heading H1E. A piezo-electric quartz crystal bar element of rectangular cross-section, and cut so that its length is in the direction of the X-axis of the original crystal and its side surfaces make angles of about 45 degrees with the Y and Z axes, has electrodes of opposite polarity attached to respective opposite side surfaces of the bar, whereby the latter is caused to oscillate in the shear mode of vibration. Preferably, as shown, each electrode is formed on a pair of adjacent side surfaces flanking one of the edges through which the Y axis of the crystal most nearly passes. The zero point of the temperature coefficient of frequency can be varied by choice of the relative cross-sectional dimensions of the bar.
GB254369A 1969-01-16 1969-01-16 Piezoelectric quartz-crystal unit Expired GB1247217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB254369A GB1247217A (en) 1969-01-16 1969-01-16 Piezoelectric quartz-crystal unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB254369A GB1247217A (en) 1969-01-16 1969-01-16 Piezoelectric quartz-crystal unit

Publications (1)

Publication Number Publication Date
GB1247217A true GB1247217A (en) 1971-09-22

Family

ID=9741444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB254369A Expired GB1247217A (en) 1969-01-16 1969-01-16 Piezoelectric quartz-crystal unit

Country Status (1)

Country Link
GB (1) GB1247217A (en)

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