JPH01179270U - - Google Patents
Info
- Publication number
- JPH01179270U JPH01179270U JP7579688U JP7579688U JPH01179270U JP H01179270 U JPH01179270 U JP H01179270U JP 7579688 U JP7579688 U JP 7579688U JP 7579688 U JP7579688 U JP 7579688U JP H01179270 U JPH01179270 U JP H01179270U
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- fixed
- vibration system
- measured
- damping coefficient
- 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
- 230000001133 acceleration Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
第１図は本考案の構成を模式的に示す側面図、
第２図は、本考案の一実施例に係る加速度センサ
ーの具体的な構成を示す斜視図、第３図は、本考
案の他の実施例に係る加速度センサーの具体的な
構成を示す斜視図、第４図は、本考案の実施例に
係る加速度センサーの加速度測定例を示す図、第
５図は、サイズモ系の力学モデルを示す図である
。
図中、１は固定端、２は第１の振動系を構成す
る弾性板、３はヒンジ、４は剛体、５は第２の振
動系を構成する圧電バイモルフ、６は重錘、７，
７′は減衰係数調整用の硬質ゴム板、８及び８′
はリード端子、５１は基礎わく、５２は重錘、５
３はばね、５４はダツシユポツトである。
FIG. 1 is a side view schematically showing the configuration of the present invention;
FIG. 2 is a perspective view showing a specific configuration of an acceleration sensor according to one embodiment of the present invention, and FIG. 3 is a perspective view showing a specific configuration of an acceleration sensor according to another embodiment of the present invention. , FIG. 4 is a diagram showing an example of acceleration measurement by an acceleration sensor according to an embodiment of the present invention, and FIG. 5 is a diagram showing a mechanical model of a seismo system. In the figure, 1 is a fixed end, 2 is an elastic plate constituting the first vibration system, 3 is a hinge, 4 is a rigid body, 5 is a piezoelectric bimorph constituting the second vibration system, 6 is a weight, 7,
7' is a hard rubber plate for adjusting the damping coefficient, 8 and 8'
is the lead terminal, 51 is the base frame, 52 is the weight, 5
3 is a spring, and 54 is a dart pot.
Claims (1)
しい弾性板よりなる第１の片持ちはりを互いの弾
性板が対向するように２つ平行に重ねて配置し、
該片持ちはりの自由端同志に連結部材を連結して
なる第１の固有振動数及び第１の減衰係数をもつ
第１の振動系と、上記連結部材を固定端とし、上
記弾性板と平行に配置された圧電振動片の自由端
側に重錘を設けてなる第２の固有振動数及び第２
の減衰係数をもつ第２の振動系とを有し、上記第
１の固有振動数及び第２の固有振動数を実質的に
等しく選択し且つ上記第１の減衰係数及び第２の
減衰係数が１に比べて充分大きい値に選択し、上
記測定対象物の振動変位の加速度を上記重錘の位
置変位として検出し、該検出した変位を、上記圧
電振動片に生ずる電気信号として取り出すことを
特徴とする加速度センサー。 two first cantilever beams each made of elastic plates of equal length, the fixed ends of which are fixed to the object to be measured, are stacked in parallel so that the elastic plates face each other;
a first vibration system having a first natural frequency and a first damping coefficient formed by connecting a connecting member to the free ends of the cantilever beam, the connecting member being a fixed end, and parallel to the elastic plate; The second natural frequency and the second
a second vibration system having a damping coefficient of 1, the acceleration of the vibrational displacement of the object to be measured is detected as the positional displacement of the weight, and the detected displacement is extracted as an electric signal generated in the piezoelectric vibrating piece. acceleration sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7579688U JPH0626852Y2 (en) | 1988-06-09 | 1988-06-09 | Accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7579688U JPH0626852Y2 (en) | 1988-06-09 | 1988-06-09 | Accelerometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01179270U true JPH01179270U (en) | 1989-12-22 |
| JPH0626852Y2 JPH0626852Y2 (en) | 1994-07-20 |
Family
ID=31300850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7579688U Expired - Lifetime JPH0626852Y2 (en) | 1988-06-09 | 1988-06-09 | Accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626852Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07121294A (en) * | 1993-08-31 | 1995-05-12 | Nippon Telegr & Teleph Corp <Ntt> | Normal wear type input system, normal wear type intention transmission system, normal wear type musical keyboard system, and normal wear type braille input/ output system |
| JP6474868B1 (en) * | 2017-08-29 | 2019-02-27 | 株式会社トライフォース・マネジメント | Power generation element |
| JP2019062736A (en) * | 2018-10-17 | 2019-04-18 | 株式会社トライフォース・マネジメント | Power generation element |
-
1988
- 1988-06-09 JP JP7579688U patent/JPH0626852Y2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07121294A (en) * | 1993-08-31 | 1995-05-12 | Nippon Telegr & Teleph Corp <Ntt> | Normal wear type input system, normal wear type intention transmission system, normal wear type musical keyboard system, and normal wear type braille input/ output system |
| JP6474868B1 (en) * | 2017-08-29 | 2019-02-27 | 株式会社トライフォース・マネジメント | Power generation element |
| JP2019047545A (en) * | 2017-08-29 | 2019-03-22 | 株式会社トライフォース・マネジメント | Power generation element |
| US11329576B2 (en) | 2017-08-29 | 2022-05-10 | Tri-Force Management Corporation | Power generating element |
| JP2019062736A (en) * | 2018-10-17 | 2019-04-18 | 株式会社トライフォース・マネジメント | Power generation element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0626852Y2 (en) | 1994-07-20 |