JPH0274732U - - Google Patents
Info
- Publication number
- JPH0274732U JPH0274732U JP15506888U JP15506888U JPH0274732U JP H0274732 U JPH0274732 U JP H0274732U JP 15506888 U JP15506888 U JP 15506888U JP 15506888 U JP15506888 U JP 15506888U JP H0274732 U JPH0274732 U JP H0274732U
- Authority
- JP
- Japan
- Prior art keywords
- membrane electrode
- membrane
- ground
- signal detection
- electrode
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 10
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Description
第１図は本考案素子の一実施例の構成を示す斜
視図、第２図は本考案素子の信号処理回路の一例
を示す図である。
１……長尺膜状圧電体、２……信号検出側膜状
電極、３……補償用膜状電極、４……アース側膜
状電極、５……保護膜、９……本考案素子、１０
……インピーダンス変換回路、１１……減算回路
、Ｓ１……検出信号、Ｓ２……補償信号、Ｓ……
感圧信号。
FIG. 1 is a perspective view showing the configuration of an embodiment of the device of the present invention, and FIG. 2 is a diagram showing an example of a signal processing circuit of the device of the present invention. DESCRIPTION OF SYMBOLS 1... Long film-like piezoelectric body, 2... Signal detection side film-like electrode, 3... Compensation film-like electrode, 4... Earth-side film-like electrode, 5... Protective film, 9... Device of the present invention. , 10
... Impedance conversion circuit, 11 ... Subtraction circuit, S 1 ... Detection signal, S 2 ... Compensation signal, S ...
pressure sensitive signal.
Claims (1)
側膜状電極２と補償用膜状電極３を並べて設け、
当該圧電体１の他面にアース側膜状電極４を設け
、これらの膜状電極２〜４の表面にこれらを被い
密閉する保護膜５を接合せしめ、信号検出側膜状
電極２とアース側膜状電極４との間及び補償用膜
状電極３とアース側膜状電極４との間の圧電性能
に差をつけてなる長尺膜状圧電素子。 A signal detection side membrane electrode 2 and a compensation membrane electrode 3 are arranged side by side on one surface of a flexible long membrane piezoelectric body 1,
A ground side membrane electrode 4 is provided on the other surface of the piezoelectric body 1, and a protective film 5 is bonded to the surface of these membrane electrodes 2 to 4 to cover and seal them, thereby connecting the signal detection side membrane electrode 2 to the ground. A long membrane piezoelectric element having different piezoelectric performances between the side membrane electrode 4 and between the compensating membrane electrode 3 and the ground side membrane electrode 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15506888U JPH0628751Y2 (en) | 1988-11-28 | 1988-11-28 | Long film piezoelectric element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15506888U JPH0628751Y2 (en) | 1988-11-28 | 1988-11-28 | Long film piezoelectric element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0274732U true JPH0274732U (en) | 1990-06-07 |
| JPH0628751Y2 JPH0628751Y2 (en) | 1994-08-03 |
Family
ID=31432361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15506888U Expired - Fee Related JPH0628751Y2 (en) | 1988-11-28 | 1988-11-28 | Long film piezoelectric element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628751Y2 (en) |
-
1988
- 1988-11-28 JP JP15506888U patent/JPH0628751Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628751Y2 (en) | 1994-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |