JPH01115324U - - Google Patents
Info
- Publication number
- JPH01115324U JPH01115324U JP1017488U JP1017488U JPH01115324U JP H01115324 U JPH01115324 U JP H01115324U JP 1017488 U JP1017488 U JP 1017488U JP 1017488 U JP1017488 U JP 1017488U JP H01115324 U JPH01115324 U JP H01115324U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric plate
- electrode film
- excitation electrode
- piezoelectric
- plate
- 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.)
- Pending
Links
- 230000005284 excitation Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図ａ及びｂはそれぞれ本考案の一実施例の
平面図及びＡ―Ａ′線断面図、第２図ａ及びｂは
それぞれ従来の圧電振動子の一例の平面図及びＢ
―Ｂ′線断面図である。
１，１ａ……圧電板、２ａ，２ｂ，２ｃ，２ｄ
……励起用電極膜、３ａ，３ｂ，３ｃ，３ｄ……
固定部、４ａ，４ｂ……溝。
1A and 1B are a plan view and a sectional view taken along line A-A' of an embodiment of the present invention, respectively, and FIGS. 2A and 2B are a plan view and B of an example of a conventional piezoelectric vibrator, respectively.
-B' line sectional view. 1, 1a...Piezoelectric plate, 2a, 2b, 2c, 2d
...Excitation electrode film, 3a, 3b, 3c, 3d...
Fixed part, 4a, 4b...groove.
Claims (1)
状をなし前記長方形の短辺を辺とする両端部を第
１及び第２の固定部とする圧電板と、前記第１の
固定部から中央部の前記圧電板の上面に形成され
た第１の励起用電極膜と、前記第２の固定部から
中央部の前記圧電板の底面に形成された第２の励
起用電極膜と、前記第２の固定部と前記第１の励
起用電極膜との間の前記圧電板の上面に設けた前
記短辺に平行する第１の溝と、前記第１の固定部
と前記第２の励起用電極膜との間の前記圧電板の
底面に設けた前記第１の溝に平行する第２の溝と
を有することを特徴とする圧電振動子。 a piezoelectric plate having a plate shape with rectangular top and bottom surfaces and a predetermined thickness, and having first and second fixing parts at both ends with the short sides of the rectangle as sides, and a central part from the first fixing part. a first excitation electrode film formed on the top surface of the piezoelectric plate; a second excitation electrode film formed on the bottom surface of the piezoelectric plate in a central portion from the second fixing portion; a first groove parallel to the short side provided on the top surface of the piezoelectric plate between the fixing part and the first excitation electrode film; A piezoelectric vibrator comprising: a second groove parallel to the first groove provided on the bottom surface of the piezoelectric plate between the piezoelectric plate and the membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1017488U JPH01115324U (en) | 1988-01-27 | 1988-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1017488U JPH01115324U (en) | 1988-01-27 | 1988-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115324U true JPH01115324U (en) | 1989-08-03 |
Family
ID=31217595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1017488U Pending JPH01115324U (en) | 1988-01-27 | 1988-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115324U (en) |
-
1988
- 1988-01-27 JP JP1017488U patent/JPH01115324U/ja active Pending