JPH02133664U - - Google Patents
Info
- Publication number
- JPH02133664U JPH02133664U JP4290889U JP4290889U JPH02133664U JP H02133664 U JPH02133664 U JP H02133664U JP 4290889 U JP4290889 U JP 4290889U JP 4290889 U JP4290889 U JP 4290889U JP H02133664 U JPH02133664 U JP H02133664U
- Authority
- JP
- Japan
- Prior art keywords
- detection
- detection circuit
- circuit
- piezoelectric element
- voltage stored
- 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
- 238000001514 detection method Methods 0.000 claims description 14
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Pressure Sensors (AREA)
Description
第１図は本考案よる加速度検出装置の第１実施
例を示す斜視図、第２図はこの加速度検出装置の
検知回路を示す回路図、第３図は第２図に示す検
知回路の各部の出力電圧を示す線図、第４図は加
速度検出装置のパツケージの一例を示す斜視図、
第５図は本考案の第２実施例による検知回路を示
す回路図、第６図は第５図に示す回路における各
部の出力電圧を示す線図である。
１……圧電セラミツク基板、３，４……検知片
、３ａ，４ａ……質量部、１２，１３，３５，３
７……ピークホールド回路、１４，３８……比較
回路、３４，３５……積分回路。
FIG. 1 is a perspective view showing a first embodiment of an acceleration detection device according to the present invention, FIG. 2 is a circuit diagram showing a detection circuit of this acceleration detection device, and FIG. 3 shows various parts of the detection circuit shown in FIG. 2. A diagram showing the output voltage, FIG. 4 is a perspective view showing an example of the package of the acceleration detection device,
FIG. 5 is a circuit diagram showing a detection circuit according to a second embodiment of the present invention, and FIG. 6 is a diagram showing output voltages of various parts in the circuit shown in FIG. 1... Piezoelectric ceramic substrate, 3, 4... Sensing piece, 3a, 4a... Mass part, 12, 13, 35, 3
7... Peak hold circuit, 14, 38... Comparison circuit, 34, 35... Integrating circuit.
Claims (1)
片持ちの検知片が複数枚形成されており、この複
数の検知片の電極には、それぞれの検知片の変形
により蓄電された電圧を検知する検知回路が接続
されており且つ、それぞれの検知片に蓄電された
電圧の前記検知回路による検知動作を交互に繰り
返すための切換スイツチが設けられて成る圧電素
子を使用した加速度検出装置。 A plurality of cantilevered detection pieces are formed by a piezoelectric element with electrodes formed on both sides, and the electrodes of the plurality of detection pieces detect the voltage stored by the deformation of each detection piece. An acceleration detection device using a piezoelectric element connected to a detection circuit and provided with a changeover switch for alternately repeating the detection operation of the voltage stored in each detection circuit by the detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4290889U JPH02133664U (en) | 1989-04-11 | 1989-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4290889U JPH02133664U (en) | 1989-04-11 | 1989-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133664U true JPH02133664U (en) | 1990-11-06 |
Family
ID=31554864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4290889U Pending JPH02133664U (en) | 1989-04-11 | 1989-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133664U (en) |
-
1989
- 1989-04-11 JP JP4290889U patent/JPH02133664U/ja active Pending