JPS61165438U - - Google Patents
Info
- Publication number
- JPS61165438U JPS61165438U JP4948185U JP4948185U JPS61165438U JP S61165438 U JPS61165438 U JP S61165438U JP 4948185 U JP4948185 U JP 4948185U JP 4948185 U JP4948185 U JP 4948185U JP S61165438 U JPS61165438 U JP S61165438U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- films
- body made
- plate
- piezoelectricity
- 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
- 239000012528 membrane Substances 0.000 claims 3
- 239000013013 elastic material Substances 0.000 claims 2
- 238000005452 bending Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000005616 pyroelectricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案センサの第１実施例の構成と信
号処理回路を示す説明図、第２図は第２実施例の
構成と信号処理回路を示す説明図である。
１，２……圧電膜、３，４，５，６……電極膜
、７，７ａ……板状体、８……増幅器。
FIG. 1 is an explanatory diagram showing the configuration and signal processing circuit of a first embodiment of the sensor of the present invention, and FIG. 2 is an explanatory diagram showing the configuration and signal processing circuit of the second embodiment. 1, 2... Piezoelectric film, 3, 4, 5, 6... Electrode film, 7, 7a... Plate body, 8... Amplifier.
Claims (1)
の圧電膜を横方向に並設し、これらの圧電膜の両
面にそれぞれ電極膜を設け、圧電性の大きい方の
圧電膜の両電極膜面にゴム状弾性材料の板状体を
貼り合わせ、圧電性の小さい方の圧電膜の両電極
膜面にそれぞれゴム状弾性材料の板状体と曲げ剛
性の大きな材料の板状体を貼り合わせると共に、
両圧電膜の焦電出力が打ち消し合うよう両圧電膜
の出力を増幅器に接続し増幅するように構成した
ことを特徴とする圧電センサ。 Two types of piezoelectric films having the same degree of pyroelectricity but different piezoelectricity are arranged side by side in the horizontal direction, electrode films are provided on both sides of these piezoelectric films, and both sides of the piezoelectric film with higher piezoelectricity are placed side by side. A plate-like body made of a rubber-like elastic material is pasted on the electrode membrane surface, and a plate-like body made of a rubber-like elastic material and a plate-like body made of a material with high bending rigidity are attached on both electrode membrane surfaces of the piezoelectric membrane with less piezoelectricity. Along with pasting,
A piezoelectric sensor characterized in that the outputs of both piezoelectric films are connected to an amplifier and amplified so that the pyroelectric outputs of both piezoelectric films cancel each other out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4948185U JPS61165438U (en) | 1985-04-02 | 1985-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4948185U JPS61165438U (en) | 1985-04-02 | 1985-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61165438U true JPS61165438U (en) | 1986-10-14 |
Family
ID=30566726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4948185U Pending JPS61165438U (en) | 1985-04-02 | 1985-04-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008059751A1 (en) * | 2006-11-13 | 2008-05-22 | Aisin Seiki Kabushiki Kaisha | Piezoelectric sensor and method for manufacturing the same |
-
1985
- 1985-04-02 JP JP4948185U patent/JPS61165438U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008059751A1 (en) * | 2006-11-13 | 2008-05-22 | Aisin Seiki Kabushiki Kaisha | Piezoelectric sensor and method for manufacturing the same |
| US8314536B2 (en) | 2006-11-13 | 2012-11-20 | Aisin Seiki Kabushiki Kaisha | Piezoelectric sensor and method for manufacturing the same |
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