JPS61126619U - - Google Patents
Info
- Publication number
- JPS61126619U JPS61126619U JP874285U JP874285U JPS61126619U JP S61126619 U JPS61126619 U JP S61126619U JP 874285 U JP874285 U JP 874285U JP 874285 U JP874285 U JP 874285U JP S61126619 U JPS61126619 U JP S61126619U
- Authority
- JP
- Japan
- Prior art keywords
- thickness direction
- piezoelectric vibrator
- view
- ceramic body
- piezoelectric
- 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
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案に係る圧電振動子の平面図、第
２図は第１図Ａ１―Ａ１線上における断面図、第
３図は同じくその底面図、第４図は同じく分極構
造と振動モードとの関係を示す図、第５図は同じ
くその屈曲振動モードを示す図、第６図は本考案
に係る圧電振動子の別の実施例における平図面、
第７図は第６図Ａ２―Ａ２線上における断面図、
第８図は同じくその底面図、第９図は本考案に係
る圧電振動子を用いた圧力センサの断面図、第１
０図は従来の圧力センサの部分断面図、第１１図
は圧力検出回路の電気回路図、第１２図は同じく
その動作を説明する図、第１３図は従来の圧電振
動子を用いた圧力センサの問題点を説明するため
の温度―共振周波数特性図である。
１……圧電振動子、１０１……圧電磁器素体、
１０４〜１０６……電極、Ｐ１，Ｐ２……分極方
向。
Fig. 1 is a plan view of the piezoelectric vibrator according to the present invention, Fig. 2 is a sectional view taken along line A1 - A1 in Fig. 1, Fig. 3 is a bottom view thereof, and Fig. 4 is a polarization structure and vibration. FIG. 5 is a diagram showing the bending vibration mode, and FIG. 6 is a plan view of another embodiment of the piezoelectric vibrator according to the present invention.
Figure 7 is a sectional view taken along line A2 - A2 in Figure 6;
FIG. 8 is a bottom view of the same, FIG. 9 is a sectional view of a pressure sensor using a piezoelectric vibrator according to the present invention, and FIG.
Figure 0 is a partial sectional view of a conventional pressure sensor, Figure 11 is an electric circuit diagram of a pressure detection circuit, Figure 12 is a diagram explaining its operation, and Figure 13 is a pressure sensor using a conventional piezoelectric vibrator. FIG. 2 is a temperature-resonance frequency characteristic diagram for explaining the problem. 1...Piezoelectric vibrator, 101...Piezoelectric ceramic body,
104-106...electrode, P1 , P2 ...polarization direction.
Claims (1)
面を複数の領域に分割し、隣合う領域を厚さ方向
に互いに逆方向に分極し、厚み方向の両面に電極
を設けたことを特徴とする圧電振動子。 The thickness direction surface of a piezoelectric ceramic body formed in a disk shape is divided into multiple regions, adjacent regions are polarized in opposite directions in the thickness direction, and electrodes are provided on both sides in the thickness direction. Features a piezoelectric vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP874285U JPS61126619U (en) | 1985-01-25 | 1985-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP874285U JPS61126619U (en) | 1985-01-25 | 1985-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61126619U true JPS61126619U (en) | 1986-08-08 |
Family
ID=30488309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP874285U Pending JPS61126619U (en) | 1985-01-25 | 1985-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61126619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63131711A (en) * | 1986-11-21 | 1988-06-03 | Rikagaku Kenkyusho | Piezoelectric element |
-
1985
- 1985-01-25 JP JP874285U patent/JPS61126619U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63131711A (en) * | 1986-11-21 | 1988-06-03 | Rikagaku Kenkyusho | Piezoelectric element |
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