JPS61126620U - - Google Patents
Info
- Publication number
- JPS61126620U JPS61126620U JP936785U JP936785U JPS61126620U JP S61126620 U JPS61126620 U JP S61126620U JP 936785 U JP936785 U JP 936785U JP 936785 U JP936785 U JP 936785U JP S61126620 U JPS61126620 U JP S61126620U
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- piezoelectric vibrator
- intervals
- thickness direction
- view
- 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 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000010287 polarization Effects 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図は同じくその要部の拡大断面図、第４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５図は従来の圧力センサの部分断面図、第
６図は圧力検出回路の電気回路図、第７図は同じ
くその動作を説明する図、第８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、１０４〜１０６……電極、
Ｐ……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 the line A1- A1 in Fig. 1 , Fig. 3 is an enlarged sectional view of the main parts thereof, and Fig. 4 is a cross-sectional view of the piezoelectric vibrator according to the present invention. A sectional view of a pressure sensor using a piezoelectric vibrator according to the invention, FIG. 5 is a partial sectional view of a conventional pressure sensor, FIG. 6 is an electric circuit diagram of a pressure detection circuit, and FIG. 7 also explains its operation. 8 are temperature-resonance frequency characteristic diagrams for explaining the problems of conventional pressure sensors using piezoelectric vibrators. 1... Piezoelectric vibrator, 104-106... Electrode,
P...Polarization direction.
Claims (1)
の面と平行する方向に分極すると共に、前記厚み
方向の少なくとも一面に、中心に対して同心円弧
状に、間隔をおいて複数個の電極を設け、これら
の複数個の電極の隔一毎に互いに導通させたこと
を特徴とする圧電振動子。 A piezoelectric ceramic body formed in the shape of a disk is polarized in a direction parallel to a surface in the thickness direction, and a plurality of electrodes are arranged at intervals on at least one surface in the thickness direction in a concentric arc shape with respect to the center. A piezoelectric vibrator characterized in that a piezoelectric vibrator is provided with a plurality of electrodes, and the plurality of electrodes are electrically connected to each other at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP936785U JPS61126620U (en) | 1985-01-26 | 1985-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP936785U JPS61126620U (en) | 1985-01-26 | 1985-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61126620U true JPS61126620U (en) | 1986-08-08 |
Family
ID=30489519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP936785U Pending JPS61126620U (en) | 1985-01-26 | 1985-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61126620U (en) |
-
1985
- 1985-01-26 JP JP936785U patent/JPS61126620U/ja active Pending
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