SU633136A1 - At-split quartz piezoelement - Google Patents

At-split quartz piezoelement

Info

Publication number
SU633136A1
SU633136A1 SU752152285A SU2152285A SU633136A1 SU 633136 A1 SU633136 A1 SU 633136A1 SU 752152285 A SU752152285 A SU 752152285A SU 2152285 A SU2152285 A SU 2152285A SU 633136 A1 SU633136 A1 SU 633136A1
Authority
SU
USSR - Soviet Union
Prior art keywords
quartz
piezoelectric
axis
along
piezoelement
Prior art date
Application number
SU752152285A
Other languages
Russian (ru)
Inventor
Эдуард Иванович Белякович
Михаил Иосифович Ярославский
Геннадий Георгиевич Черных
Михаил Евгеньевич Богуш
Original Assignee
Предприятие П/Я Х-5332
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 Предприятие П/Я Х-5332 filed Critical Предприятие П/Я Х-5332
Priority to SU752152285A priority Critical patent/SU633136A1/en
Application granted granted Critical
Publication of SU633136A1 publication Critical patent/SU633136A1/en

Links

Description

The invention relates to the field of piezoelectric and can be used in the fabrication of quartz resonators for frequencies up to 1 MHz. The AT-cut quartz piezoelectric element with a working mode of oscillations is shifted in thickness, made in the shape of a parallelepiped with bevelled edges in thickness, the length of which is directed along the X axis and the electrodes are located on the largest surfaces of the piezoelectric element, coinciding with the XZ 1 plane. However, in resonators with such piezoelements unwanted resonances near the main resonance are not sufficiently attenuated. A quartz Е.1th piezoelement with a working mode of oscillation is also known to shift in thickness, made in the form of a parallelepiped with electrodes covering the central part of the largest surfaces of the piezoelectric element; 1. However, in this piezoelectric element unwanted resonances near the main resonance are also weakened insufficiently. The purpose of the invention is to increase the degree & monofrequency of the cavity. This is achieved by the fact that in the proposed quartz piezoelectric element with a working mode of oscillations a shift in the thickness of the Atresis. Paraple-shaped & XZ, the continuous in the width direction along the ZI axis, the ratio of the npoTS of the electrode surface coverage along the X axis to the size of the plane-parallel piezoelectric cup along this axis is 0.60 + 0.04 or 0, 70 + 0.04. The drawing shows the proposed quartz piezoelectric element, General view.
The piezoelectric element is made of a quartz plate 1 AT-cut with a working type of oscillations shear in thickness. The plate L has the shape of a parallelepiped with edges 2 beveled along the thickness in the direction of the crystallographic axis X. On the central part of the largest surfaces of the piezoelectric element, coinciding with the plane
X 2 | quartz, symmetrically with respect to the beveled edges 2, electrode coating 3 is applied, continuous in the direction of the plate width along axis 2, while the ratio of the length of the electrode coating along the X axis (a) to the size of the plane1: allele portion of piezoelemite along the axis (b is 0.5O) + 0.04 or 0.70 + 0.04.
The specified electrical coating makes cxsjiaouTij significantly undesirable, - resonance (by 40 dB or more).
Form m l l a and 3 a b) of t e n u
 Quartz 11yo; yulemont LT-cut, made of 1X1Y in the form of a parallelepiped with
sloped in the direction of the crystallographic X axis and the immersion electrode coating in the central part of the largest surfaces, which coincides with the XZ plane and is continuous along the 2 axis, characterized in that, in order to increase the degree of monofrequency, the ratio of the X-ray surface of the electrode coating along the X axis to the length of the plane-parallel part of the piezoelectric element along this (x; and is 0.50 + 0.04 or 0.70 + 0.04.
Sources of information taken into account in the examination:
1. Yar; x; Lavsky M. I., Smagin A. G. Designing, manufacturing and manufacturing quartz resonators, M., Energie, 1971, p. 81.
2. The patent of France No. 1110289, cl. and OlE, 1954.
/ V
SU752152285A 1975-06-30 1975-06-30 At-split quartz piezoelement SU633136A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU752152285A SU633136A1 (en) 1975-06-30 1975-06-30 At-split quartz piezoelement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752152285A SU633136A1 (en) 1975-06-30 1975-06-30 At-split quartz piezoelement

Publications (1)

Publication Number Publication Date
SU633136A1 true SU633136A1 (en) 1978-11-15

Family

ID=20625311

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752152285A SU633136A1 (en) 1975-06-30 1975-06-30 At-split quartz piezoelement

Country Status (1)

Country Link
SU (1) SU633136A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304459A (en) * 1990-04-27 1994-04-19 Seiko Epson Corporation At-cut crystal oscillating reed and method of etching the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314577A (en) * 1990-04-26 1994-05-24 Seiko Epson Corporation At-cut crystal oscillating reed and method of etching the same
US5304459A (en) * 1990-04-27 1994-04-19 Seiko Epson Corporation At-cut crystal oscillating reed and method of etching the same
US5376861A (en) * 1990-04-27 1994-12-27 Seiko Epson Corporation At-cut crystal oscillating reed and method of etching the same

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