JPH073376B2 - Piezoelectric pressure distribution sensor - Google Patents
Piezoelectric pressure distribution sensorInfo
- Publication number
- JPH073376B2 JPH073376B2 JP8885990A JP8885990A JPH073376B2 JP H073376 B2 JPH073376 B2 JP H073376B2 JP 8885990 A JP8885990 A JP 8885990A JP 8885990 A JP8885990 A JP 8885990A JP H073376 B2 JPH073376 B2 JP H073376B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- pressure
- pressure distribution
- distribution sensor
- piezoelectric element
- 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.)
- Expired - Fee Related
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measuring Fluid Pressure (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は圧電型圧力分布センサに関し、特に、マトリ
クス状に配置された複数の圧電素子により接触圧力分布
を検出することができる圧電型圧力分布センサに関す
る。Description: TECHNICAL FIELD The present invention relates to a piezoelectric pressure distribution sensor, and in particular, a piezoelectric pressure distribution sensor capable of detecting contact pressure distribution by a plurality of piezoelectric elements arranged in a matrix. Regarding sensors.
（従来技術） 第３図はこの発明の背景となる従来の圧電型圧力分布セ
ンサの一例を示す分解斜視図である。この圧電型圧力分
布センサ１は、剛体で形成された基台２を含む。基台２
上には、複数の圧電素子３が、マトリクス状に配置され
る。これらの圧電素子３の上面は、緩衝用シート４で被
覆される。(Prior Art) FIG. 3 is an exploded perspective view showing an example of a conventional piezoelectric pressure distribution sensor which is the background of the present invention. The piezoelectric pressure distribution sensor 1 includes a base 2 formed of a rigid body. Base 2
A plurality of piezoelectric elements 3 are arranged in a matrix on the top. The upper surfaces of these piezoelectric elements 3 are covered with a cushioning sheet 4.
この圧電型圧力分布センサ１では、各圧電素子３にかか
る圧力を測定することによって、圧力の分布を知ること
ができる。さらに、各圧電素子３にかかる圧力を時分割
的に測定することによって、圧力分布の時間的な変化を
知ることができる。In the piezoelectric pressure distribution sensor 1, the pressure distribution can be known by measuring the pressure applied to each piezoelectric element 3. Further, by measuring the pressure applied to each piezoelectric element 3 in a time-division manner, it is possible to know the temporal change of the pressure distribution.
（発明が解決しようとする課題） このような圧電型圧力分布センサでは、大きな圧力がか
かったときに、第４図に示すように、緩衝用シートが圧
電素子に食い込んでしまう。そのため、圧電型圧力分布
センサにかかる圧力を正確に測定できなくなってしま
う。(Problems to be Solved by the Invention) In such a piezoelectric pressure distribution sensor, when a large pressure is applied, the cushioning sheet bites into the piezoelectric element as shown in FIG. Therefore, the pressure applied to the piezoelectric pressure distribution sensor cannot be accurately measured.
それゆえに、この発明の主たる目的は、従来のものに比
べて、大きな圧力の分布状態を把握することができる圧
電型圧力分布センサを提供することである。Therefore, a main object of the present invention is to provide a piezoelectric pressure distribution sensor capable of grasping a larger pressure distribution state as compared with the conventional one.
（課題を解決するための手段） この発明は、マトリクス状に配置され、圧力変化に応じ
た電圧を出力する複数の圧電素子と、各々の圧電素子の
受圧面上に取り付けられ、圧電素子の受圧面より大きい
面積を有する複数の受圧板を含む、圧電型圧力分布セン
サである。(Means for Solving the Problem) The present invention has a plurality of piezoelectric elements arranged in a matrix and outputting a voltage according to a pressure change, and mounted on pressure-receiving surfaces of the respective piezoelectric elements. A piezoelectric pressure distribution sensor including a plurality of pressure receiving plates having an area larger than a surface.
（作用） 圧電素子にかかる圧力が、圧電素子の受圧面より大きい
面積を有する受圧板で受けられる。(Operation) The pressure applied to the piezoelectric element is received by the pressure receiving plate having an area larger than the pressure receiving surface of the piezoelectric element.
（発明の効果） この発明によれば、圧電型圧力分布センサにかかる圧力
が、圧電素子の受圧面より大きい面積で受けられるた
め、従来のものに比べて、大きい圧力の分布状態を測定
することができる。(Effect of the Invention) According to the present invention, the pressure applied to the piezoelectric type pressure distribution sensor can be received in an area larger than the pressure receiving surface of the piezoelectric element. You can
この発明の上述の目的，その他の目的，特徴および利点
は、図面を参照して行う以下の実施例の詳細な説明から
一層明らかとなろう。The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.
（実施例） 第１図はこの発明の一実施例を示す分解斜視図である。
圧電型圧力分布センサ10は、剛体で形成された基台12を
含む。基台12上には、複数の圧電素子14が、マトリクス
状に配置される。これらの圧電素子14上には、それぞれ
受圧板16が取り付けられる。この受圧板16は、圧電素子
14の受圧面より大きい面積を有するように形成される。
受圧板16の材料としては、たとえば冷間圧延鋼板やステ
ンレス鋼板などが用いられる。さらに、受圧板16の取り
付けられた圧電素子14上には、シート材18が載置され
る。(Embodiment) FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
The piezoelectric pressure distribution sensor 10 includes a base 12 formed of a rigid body. On the base 12, a plurality of piezoelectric elements 14 are arranged in a matrix. A pressure receiving plate 16 is attached on each of the piezoelectric elements 14. This pressure receiving plate 16 is a piezoelectric element.
It is formed to have an area larger than 14 pressure receiving surfaces.
As the material of the pressure receiving plate 16, for example, a cold rolled steel plate or a stainless steel plate is used. Further, the sheet material 18 is placed on the piezoelectric element 14 to which the pressure receiving plate 16 is attached.
この圧電型圧力分布センサ10を用いる場合、シート材18
上に被測定物が載せられる。被測定物による圧力は、受
圧板16を介して各圧電素子14に伝えられる。したがっ
て、この圧力によって各圧電素子14に発生した電圧を測
定すれば、被測定物の圧力分布を知ることができる。When using this piezoelectric pressure distribution sensor 10, the sheet material 18
The object to be measured is placed on top. The pressure of the object to be measured is transmitted to each piezoelectric element 14 via the pressure receiving plate 16. Therefore, by measuring the voltage generated in each piezoelectric element 14 by this pressure, the pressure distribution of the object to be measured can be known.
また、各圧電素子14について、時分割的に電圧を測定す
れば、シート材18上の被測定物の圧力分布が変化して
も、その時間的な変化を知ることができる。Further, by measuring the voltage of each piezoelectric element 14 in a time-division manner, even if the pressure distribution of the object to be measured on the sheet material 18 changes, the change over time can be known.
この圧電型圧力分布センサ10では、圧電素子14より大き
い面積を有する受圧板16があるため、圧電素子14上に直
接シート材18を被せた従来のものに比べて、その受圧面
積が大きい。そのため、従来の圧電型圧力分布センサに
比べて、大きな圧力を測定することができる。In this piezoelectric type pressure distribution sensor 10, since the pressure receiving plate 16 having an area larger than that of the piezoelectric element 14 is provided, the pressure receiving area is larger than that of the conventional one in which the sheet material 18 is directly covered on the piezoelectric element 14. Therefore, a larger pressure can be measured as compared with the conventional piezoelectric pressure distribution sensor.
また、受圧板16の材料として、断熱性の大きい材料を用
いれば、圧電素子14に熱が伝わりにくくなり、圧電素子
14の特性の劣化を防ぐことができる。If a material having a large heat insulating property is used as the material of the pressure receiving plate 16, it becomes difficult for heat to be transmitted to the piezoelectric element 14, and
It is possible to prevent deterioration of 14 characteristics.
第１図はこの発明の一実施例を示す分解斜視図である。 第２図は第１図に示す圧電型圧力分布センサの部分断面
図である。 第３図はこの発明の背景となる従来の圧電型圧力分布セ
ンサの一例を示す分解斜視図である。 第４図は第３図に示す従来の圧電型圧力分布センサの使
用状態の一例を示す図解図である。 図において、10は圧電型圧力分布センサ、14は圧電素
子、16は受圧板を示す。FIG. 1 is an exploded perspective view showing an embodiment of the present invention. FIG. 2 is a partial sectional view of the piezoelectric pressure distribution sensor shown in FIG. FIG. 3 is an exploded perspective view showing an example of a conventional piezoelectric pressure distribution sensor which is the background of the present invention. FIG. 4 is an illustrative view showing an example of a usage state of the conventional piezoelectric pressure distribution sensor shown in FIG. In the figure, 10 is a piezoelectric pressure distribution sensor, 14 is a piezoelectric element, and 16 is a pressure receiving plate.
Claims (1)
た電圧を出力する複数の圧電素子、および 各々の前記圧電素子の受圧面上に取り付けられ、前記圧
電素子の受圧面より大きい面積を有する複数の受圧板を
含む、圧電型圧力分布センサ。1. A plurality of piezoelectric elements arranged in a matrix and outputting a voltage according to a pressure change, and mounted on the pressure-receiving surface of each of the piezoelectric elements, and having an area larger than the pressure-receiving surface of the piezoelectric element. A piezoelectric pressure distribution sensor including a plurality of pressure receiving plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8885990A JPH073376B2 (en) | 1990-04-02 | 1990-04-02 | Piezoelectric pressure distribution sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8885990A JPH073376B2 (en) | 1990-04-02 | 1990-04-02 | Piezoelectric pressure distribution sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03287032A JPH03287032A (en) | 1991-12-17 |
| JPH073376B2 true JPH073376B2 (en) | 1995-01-18 |
Family
ID=13954721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8885990A Expired - Fee Related JPH073376B2 (en) | 1990-04-02 | 1990-04-02 | Piezoelectric pressure distribution sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073376B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017126306A1 (en) * | 2016-01-22 | 2017-07-27 | 住友理工株式会社 | Foot pressure detection device |
| JP2017131614A (en) * | 2016-01-22 | 2017-08-03 | 住友理工株式会社 | Foot pressure detector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5444733B2 (en) * | 2009-01-29 | 2014-03-19 | Ｊｆｅスチール株式会社 | Spray nozzle clogging detection method and detection device for continuous casting machine |
-
1990
- 1990-04-02 JP JP8885990A patent/JPH073376B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017126306A1 (en) * | 2016-01-22 | 2017-07-27 | 住友理工株式会社 | Foot pressure detection device |
| JP2017131614A (en) * | 2016-01-22 | 2017-08-03 | 住友理工株式会社 | Foot pressure detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03287032A (en) | 1991-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |