JPH0812067B2 - Distortion magnifier - Google Patents
Distortion magnifierInfo
- Publication number
- JPH0812067B2 JPH0812067B2 JP3251179A JP25117991A JPH0812067B2 JP H0812067 B2 JPH0812067 B2 JP H0812067B2 JP 3251179 A JP3251179 A JP 3251179A JP 25117991 A JP25117991 A JP 25117991A JP H0812067 B2 JPH0812067 B2 JP H0812067B2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- columnar
- fulcrum
- action point
- column
- 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 - Lifetime
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、微小な歪みをテコの原
理を応用して連続的に拡大する歪み拡大装置に関する。BACKGROUND OF THE INVENTION The present invention is designed to reduce the amount of distortion
The present invention relates to a strain magnifying device that continuously magnifies by applying a theory .
【０００２】[0002]
【従来の技術】微小な変位をテコの原理を利用して拡大
する装置としては、実願平５９−３８７２１号に係る寸
法検出装置が公知である。この公知例は、てこ式の寸法
検出装置において、レバーの支点に対して接触子の反対
の側にワイヤの一端を固定し、このワイヤに寸法検出器
の可動部を連結し、ワイヤの他端をスプリングを介在さ
せて、レバー、もしくは固定部に取り付けたことを特徴
とする寸法検出装置である。 [Prior Art] Enlarging a minute displacement using the lever principle
As a device to do, the size according to Japanese Utility Model Application No. 59-38721
Method detection devices are known. This known example is a lever type
In the detection device, the contact is opposite to the fulcrum of the lever
Fix one end of the wire on the side of
Of the wire, and connect the other end of the wire with a spring.
It is characterized by being attached to the lever or fixed part
It is a size detection device.
【０００３】また、微小変位をテコの原理を応用して連
続的に拡大する機構としては、特開昭５９−１７５３８
７号公報に掲載されているものが公知である。この公知
例は、曲げ変形可能なヒンジと変形しにくいアームより
構成されたレバー機構を２段直列にヒンジで接続して変
位拡大機構を構成し、前記変位拡大機構の入力端に圧電
もしくは電歪素子をヒンジを介して接続し、前記変位拡
大機構の固定部と前記圧電もしくは電歪素子の固定部を
囲まれたわく状のフレーＡの内部に固定し、前記変位拡
大機構の出力端に作用素子を接続してなることを特徴と
する機械的増幅機構である。 In addition, the micro displacement is continuously applied by applying the lever principle.
As a mechanism for continuously expanding, Japanese Patent Laid-Open No. 59-17538.
What is published in Japanese Patent Publication No. 7 is publicly known. This public
Examples are from bendable hinges and hard-to-deform arms
The configured lever mechanism is connected in a two-stage series with a hinge
The displacement magnifying mechanism, and a piezoelectric element is connected to the input end of the displacement magnifying mechanism.
Alternatively, connect the electrostrictive element via a hinge to
The fixed part of the large mechanism and the fixed part of the piezoelectric or electrostrictive element
Fix inside the enclosed frame-shaped frame A,
It is characterized by connecting an action element to the output end of the large mechanism.
It is a mechanical amplification mechanism.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記公知例に
おいては、次のような欠点がある。ａ．実願昭５９−３８７２１号の場合、テコの原理によ
り変位量を拡大しているが、テコは単体であることか
ら、大きな拡大を求めるためにはテコの長さをできるだ
け長くする必要がある。このため、装置が大型化して地
殻変動とか、ダム、ビル、岩盤等の歪み測定用には適用
できない。 ｂ．特開昭５９−１７５３８７号公報に掲載の増幅機構
の場合、テコの原理を用いて連続的に変位を拡大するこ
とができるため、前記ａの欠点は改善されているが、テ
コ（アーム）の支点と作用点は１８０°方向から対向構
造であって、並列構造ではないことから、微小変位の応
答性感度が悪い欠点があり、又、テコ（アーム）が対称
形ではない為に２段以上の配置をすることが出来ず、大
きな拡大 を得ようとすると、テコ（アーム）の長さを増
やす方法しかなく、装置が大型化する。又、テコ（アー
ム）・ヒンジ・拡大機構の入力端が囲まれたわく状のフ
レームの中部に固定されているため、わくのフレームの
外からの変位を拡大するには機構的にむずかしい欠点が
ある。 However, the above-mentioned known examples have the following drawbacks. a. In the case of Japanese Patent Application No. 59-38721, the principle of leverage is used.
The amount of displacement has been expanded, but is the lever alone?
You can make the lever length to seek a big expansion
It is necessary to lengthen it. For this reason, the device becomes larger and
Applicable for shell movement and strain measurement of dams, buildings, bedrock, etc.
Can not. b. Amplification mechanism disclosed in Japanese Patent Laid-Open No. 59-175387
, The displacement can be continuously magnified using the lever principle.
Therefore, the drawback of the above-mentioned a is improved, but
The fulcrum of the arm (arm) and the point of action face each other from the 180 ° direction.
Structure, and not a parallel structure.
There is a drawback that the response sensitivity is poor, and the lever (arm) is symmetrical
Because it is not a shape, it can not be arranged in more than two steps, so it is large
The lever (arm) length is increased to obtain a desired expansion.
There is only an easy method, and the device becomes large. In addition,
Frame) -a hinged frame-shaped frame that surrounds the input end of the expansion mechanism.
Since it is fixed in the middle of the ramme,
There is a drawback that is mechanically difficult to expand the displacement from the outside.
is there.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記課題を解
決するのが目的であって、その構成は次のとおりであ
る。一枚の弾性基板を溝彫り加工することによって、第
１テコ、第２テコ、第３テコを平行配置で形成し、第１
テコの第１柱状支点を一端に配置すると共に、この第１
柱状支点に接近させて第１柱状作用点を配置したこと、
第２テコの第２柱状支点は、第１テコの第１柱状支点と
反対側の一端に配置すると共に、この第２柱状支点に接
近させて第２柱状作用点を配置し、この第２柱状作用点
と第１テコの先端を連結したこと、 第３テコの第３柱状
支点は、第２テコの第２柱状支点と反対側の一端に配置
すると共に、この第３柱状支点に接近させて第３柱状作
用点を配置し、この第３柱状作用点と第２テコの先端を
連結したこと、 第１テコ、第２テコ、第３テコの各柱状
支点と各柱状作用点は、夫々のテコに対して直角方向に
向けて配置されていると共に、夫々の柱状支点と柱状作
用点は、並列配置であること、 各柱状支点と各柱状作用
点の形状は、中央が最も細くなるように両側を円弧状に
切り欠いた鼓形状であること、 第１テコの第１柱状作用
点に連結された歪み入力端は、第１柱状作用点の延長線
上に形成し、弾性基板は、この入力端の部分において溝
により分離されていること、 第３テコの先端側に発磁体
を取り付け、弾性基板側に磁気検出器を取り付けたこ
と、 を特徴とする歪み拡大装置。 The present invention solves the above problems.
A purpose of attain, its configuration is as follows. By grooving one elastic substrate,
1st lever, 2nd lever, 3rd lever are formed in parallel arrangement, 1st lever
The first columnar fulcrum of the lever is arranged at one end and
Arranging the first columnar working point close to the columnar fulcrum,
The second columnar fulcrum of the second lever and the first columnar fulcrum of the first lever
Place it at one end on the opposite side and contact this second column fulcrum.
The second columnar action point is arranged close to the second columnar action point.
And the tip of the first lever is connected , the third column of the third lever
The fulcrum is located at one end of the second lever opposite to the second columnar fulcrum
At the same time, the third columnar fulcrum is brought closer to
Place an operating point and connect the third column action point and the tip of the second lever.
Connected , each column of the first lever, the second lever, and the third lever
The fulcrum and each column action point should be perpendicular to the respective lever.
It is arranged facing each other, and each columnar fulcrum and columnar work
The points of use are that they are arranged in parallel, each columnar fulcrum and each columnar action.
The points are arcuate on both sides so that the center is thinnest.
It has a notched drum shape and the first columnar action of the first lever
The strain input end connected to the point is an extension of the first column action point.
Formed on top, the elastic substrate is grooved at this input end part.
Are separated by the
The magnetic sensor on the elastic substrate side.
And a distortion magnifying device.
【０００６】[0006]
【作用】入力端から第１テコの第１柱状作用点に歪みが
作用すると、第１テコは第１柱状支点を支点としてその
先端側が変位する。この変位に際して、第１柱状支点と
第１柱状作用点は並列に配置されているため、両者はと
もに平行に変形（変位）する。第１テコの先端は第２テ
コの第２柱状作用点と連結しているため、第１テコによ
り拡大された歪みは第２テコの第２柱状作用点にそのま
ま伝わり、第２テコの先端が大きく変位する。この第２
テコの変位に際しても、第２柱状支点と第２柱状作用点
は平行に変位する。第２テコにより拡大された歪みは、
第２テコの先端が第３テコの第３柱状作用点と連結して
あるため、第３テコにそのまま伝わり、第３テコの先端
が大きく変位する。この変位に際しても、第３柱状支点
と第３柱状作用点は平行に変位する。このようにして連
続的に拡大された歪み量は、最終的に第３テコの先端の
発磁体と、この発磁体の変位量を測定するために弾性基
板に取り付けられた磁気検出器により検出される。 [Operation] Distortion from the input end to the first columnar action point of the first lever
When actuated, the first lever uses the first columnar fulcrum as its fulcrum.
The tip side is displaced. At the time of this displacement,
Since the first column action points are arranged in parallel,
It deforms (displaces) parallel to the sea. The tip of the first lever is the second lever
Since it is connected to the second columnar action point of the
The strain that has been magnified continues to the point of action of the second column of the second lever.
Then, the tip of the second lever is largely displaced. This second
Even when the lever is displaced, the second columnar fulcrum and the second columnar working point
Is displaced in parallel. The distortion magnified by the second lever is
The tip of the second lever is connected to the third column action point of the third lever
Therefore, it is transmitted to the third lever as it is, and the tip of the third lever
Is greatly displaced. Even during this displacement, the 3rd columnar fulcrum
And the third column action point is displaced in parallel. In this way
The amount of strain that has been continuously increased is finally the tip of the third lever.
A magnetic body and an elastic base for measuring the displacement of the magnetic body.
It is detected by a magnetic detector attached to the plate.
【０００７】[0007]
【実施例】図１及び図２に本発明を実施した歪み拡大装
置を示す。この図１及び図２において、１は１枚の弾性
板（例えばステンレス）から成る基板、２は歪み入力
端、３は基板１の固定部、４は溝彫り加工部であって、
この溝彫り加工部４により第１テコ５、第２テコ６、第
３テコ７が平行配置で形成されていると共に、第１テコ
５の第１柱状支点Ａ １ 、第１柱状作用点Ｂ １ 、第２テコ
６の第２柱状支点Ａ ２ 、第２柱状作用点Ｂ ２ 、第３テコ
７の第３柱状支点Ａ ３ 第３柱状作用点Ｂ ３ が加工され、
更に第１柱状支点Ａ １ 、第１柱状作用点Ｂ １ 、第２柱状
支点Ａ ２ 、第２柱状作用点Ｂ ２ 、第３柱状支点Ａ ３ 、第
３柱状作用点Ｂ ３ が一体に加工されている。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A distortion magnifying apparatus embodying the present invention is shown in FIGS.
Indicates the location. 1 and 2, 1 is a substrate made of one elastic plate (for example, stainless steel), 2 is strain input
End 3 fixed portion of the substrate 1, 4 denotes a groove slotting unit,
With this groove carving section 4, the first lever 5, the second lever 6,
3 levers 7 are formed in parallel arrangement, and the first lever
5, first columnar fulcrum A 1 , first columnar action point B 1 , second lever
No. 6 second column fulcrum A 2 , second column action point B 2 , third lever
7, the third columnar fulcrum A 3 and the third columnar action point B 3 are machined,
Furthermore, the first columnar fulcrum A 1 , the first columnar action point B 1 , the second columnar
Fulcrum A 2 , second columnar action point B 2 , third columnar fulcrum A 3 ,
The three columnar action points B 3 are integrally processed.
【０００８】また、上記各柱状支点及び柱状作用点は、
夫々のテコの基部において、テコに対して直角方向に配
置され、更に各柱状支点及び柱状作用点は、中央が最も
細くなるように両サイドが円弧状にカットされた鼓形状
を呈し、かつ各柱状支点と各柱状作用点は並列に配置さ
れている。また、各テコはすべて平行に配置され、第 １
テコ５の先端は第２柱状作用点Ｂ ２ と連結され、第２テ
コ６の先端は第３テコ７の第３柱状作用点Ｂ ３ と連結さ
れている。 Further , each of the column supporting points and the column acting points are
At the base of each lever, place it at a right angle to the lever.
The center of each column fulcrum and column action point is
A drum shape with both sides cut in an arc shape so that it becomes thinner
And each column fulcrum and each column action point are arranged in parallel.
Has been. Each lever are all arranged in parallel, the first
The tip of the lever 5 is connected to the second columnar action point B 2 and
The tip of the lever 6 is connected to the third pillar action point B 3 of the third lever 7.
Has been.
【０００９】８は第３テコ７の先端に取り付けられた発
磁体、９は前記発磁体８の変位量（歪み量）を検出する
ために、基板１に取り付けられた磁気検出器である。１
０は第１柱状支点Ａ１と第１柱状作用点Ｂ１を形成する
ために、溝彫り加工した円内に支柱１０ａ、１０ｂを嵌
合した補強板である。なお、上記実施例において、入力
端２は、第１柱状作用点Ｂ １ の延長線上に形成され、且
つこの入力端２が位置する基板１は、端から溝彫り加工
部４まで溝で切り欠いてある。 上記歪み拡大装置は、次
の作用により入力された歪みをテコの原理を応用して連
続的に拡大する。 [0009] 8 is attached to the distal end of the third lever 7 issued
The magnetic body 9 detects the displacement amount (distortion amount) of the magnetic body 8.
Therefore, it is a magnetic detector attached to the substrate 1. 1
Reference numeral 0 is a reinforcing plate in which the columns 10a and 10b are fitted in a grooved groove for forming the first columnar fulcrum A 1 and the first columnar action point B 1 . In the above example, input
The end 2 is formed on an extension of the first columnar action point B 1 and
The substrate 1 on which the input end 2 is located is grooved from the end.
A groove is cut out to the portion 4. The distortion magnification device is
The distortion input by the action of is applied by applying the lever principle.
Expand continuously.
【００１０】入力端２から第１テコ５の第１柱状作用点
Ｂ １ に歪みが作用すると第１テコ５は第１柱状支点Ａ １
を支点としてその先端側が変位する。この変位に際し
て、第１柱状支点Ａ １ と第１柱状作用点Ｂ １ は並列に配
置されているため、両者はともに平行に変形（変位）す
る。第１テコ５の先端は第２テコ６の第２柱状作用点Ｂ
１ と連結しているため、第１テコ５により拡大された歪
みは第２テコ６の第２柱状作用点Ｂ ２ にそのまま伝わ
り、第２テコ６の先端が大きく変位する。この第２テコ
６の変位に際しても、第２柱状支点Ａ ２ と第２柱状作用
点Ｂ ２ は平行に変位する。第２テコ６により拡大された
歪みは、第２テコ６の先端が第３テコ７の第３柱状作用
点Ｂ ３ と連結しているため、第３テコ７にそのまま伝わ
り、第３テコ５の先端が更に大きく変位する。この変位
に際しても、第３柱状支点Ａ ３ と第３柱状作用点Ｂ ３ は
平行に変位する。このようにして拡大された歪みは、第
３テコ７の先端の発磁体８を変位させるため、この変位
量は磁気検出器９により検出される。 From the input end 2 to the first pillar action point of the first lever 5
When the strain acts on B 1 , the first lever 5 moves to the first columnar fulcrum A 1
The tip side is displaced around the fulcrum. When this displacement
The first columnar fulcrum A 1 and the first columnar action point B 1 are arranged in parallel.
Both are deformed (displaced) in parallel because they are placed
It The tip of the first lever 5 is the second columnar action point B of the second lever 6.
Since it is connected to 1 , the strain expanded by the first lever 5
Is directly transmitted to the second pillar action point B 2 of the second lever 6
Therefore, the tip of the second lever 6 is largely displaced. This second lever
Even during the displacement of No. 6, the second columnar fulcrum A 2 and the second columnar action
The point B 2 is displaced in parallel. Enlarged by the second lever 6
The distortion is a third columnar action in which the tip of the second lever 6 is the third lever 7
Since it is connected to point B 3 , it is directly transmitted to the third lever 7.
Therefore, the tip of the third lever 5 is further displaced. This displacement
Also at this time, the third columnar fulcrum A 3 and the third columnar action point B 3 are
Displace in parallel. The distortion magnified in this way is
3 To displace the magnetism generator 8 at the tip of the lever 7, this displacement
The quantity is detected by the magnetic detector 9.
【００１１】図３において、１１は、地殻変動を測定す
るために、地中深くボーリングした孔内に本発明に係る
歪み拡大装置（歪み測定装置）を挿入するための防水円
柱状 ケースであって、図４はケース１１の断面を示し、
このケース１１内には、図５（Ａ）、（Ｂ）、（Ｃ）に
示すように、その向き（角度）を１２０°ずつ変えてあ
らゆる方向（３６０°方向）からの歪み（多成分）を測
定できるように、歪み測定装置を三段に組み込んだ実施
例である。図６は、ケース１１自体に一体化して基板１
ａを設け、これに溝彫り加工を行って図１及び図２に示
す歪み拡大装置を構成した実施例であって、この方式を
採用すると、組み立て誤差を排除して測定精度の向上を
図ることができる。 In FIG . 3, 11 indicates the crustal movement.
For the purpose of the present invention,
Waterproof circle for inserting strain magnifying device (strain measuring device)
4 is a columnar case, FIG. 4 shows a cross section of the case 11,
In this case 11, as shown in FIGS. 5 (A), (B), and (C)
As shown, change the direction (angle) by 120 °.
Distortion (multi-component) from all directions (360 ° direction)
Strain measurement device built in three stages
Here is an example. FIG. 6 shows the substrate 1 integrated with the case 11 itself.
a is provided, and the groove engraving is performed on this, and the result is shown in FIGS. 1 and 2.
This is an embodiment of a strain magnifying device,
Adopted to eliminate assembly error and improve measurement accuracy
Can be planned.
【００１２】[0012]
【実験例】図７は実験壕内に直径１２ｃｍ、深さ１ｍの
ボーリング孔を掘削し、ここに図３及び図４に示したケ
ース１１内に図１及び図２に示す歪み拡大装置付のセン
サをセットしてセメントで固めて得た観測ひずみの時間
変化の一部である。この図７には、地球潮汐および海洋
潮汐による地殻ひずみの日変化量が明瞭に示されてお
り、この記録から、本発明に係る歪み拡大装置を用いた
歪み測定装置の場合、１０−７の感度が十分にあること
を示している。 [Experimental Example] Fig. 7 is drilled diameter 12cm in experiments bunker, a borehole depth 1 m, shown here in FIGS. 3 and 4 Ke
It is a part of the time change of the observed strain obtained by setting the sensor with a strain magnifying device shown in FIGS. 1 and 2 in the base 11 and cementing it. The 7 day variation of strain crust by Tidal and marine tide has clearly shown, from the recording, using the distortion expansion device according to the present invention
In the case of strain measurement equipment, it must have sufficient sensitivity of 10-7
Is shown.
【００１３】[0013]
【発明の効果】本発明に係る歪み拡大装置は以上の如き
構成と作用から成るため、次の如き効果を奏する。 ａ．各テコと各柱状支点及び柱状作用点をすべて平行に
形成することにより、最小の面積で最大のパターン化が
可能である。この結果、センサの小型化、軽量化が可能
である。 ｂ．各柱状支点と柱状作用点及びテコを並列配置するこ
とにより、対となる支点と作用点の変形部（Ｒ支柱）は
作用時に平行変形し、バネ効果により誤差を吸収し合う
ため、スムーズに拡大が連続し、実用的には３６倍の拡
大を可能にしている。 ｃ．基板に温度の影響を受けないものを選択することに
より、温度の影響を全く無視することができる。このた
め、温度の影響を受け易いダムやビル等への設置の自由
度が大きい。 ｄ．基板を溝彫り加工するだけで拡大装置を構成できる
ので、製作は簡単であり、コストも安い。 ｅ．一枚の基板に加工するため、組み立て誤差の心配は
全くなく、又変位の伝達に対してバッククラッシュがな
いことから、追従性が高く、高精度化できる。Since the strain magnifying device according to the present invention has the above-described structure and operation, it has the following effects. a. By all formed in parallel with each lever and each of the columnar fulcrum and the columnar action point, it is possible for up to patterned with minimum area. As a result, it is possible to reduce the size and weight of the sensor. b. By arranging each columnar fulcrum, columnar action point, and lever in parallel , the pair of fulcrum and action point deformation part (R strut) deforms in parallel during action, and the spring effect absorbs the error and expands smoothly. There succession, in practice and enables the expansion of 36 times. c. By selecting a substrate that is not affected by temperature, the effect of temperature can be ignored. Therefore, there is a high degree of freedom in installation in dams, buildings, etc., which are easily affected by temperature. d. Since the substrate can be configured to expand device only by grooving machining, fabrication is simple, cost is low. e. Since it is processed into a single substrate, there is no concern about assembly error, and there is no back crash to the transmission of displacement, so high followability and high accuracy can be achieved.
【図１】本発明に係る歪み拡大装置の斜視図。FIG. 1 is a perspective view of a distortion magnifying apparatus according to the present invention.
【図２】歪み拡大装置の平面図。FIG. 2 is a plan view of the distortion magnifying apparatus .
【図３】歪み拡大装置（センサ）を組み込むケースの一
例を示す外観図。FIG. 3 is an external view showing an example of a case in which a distortion magnifying device ( sensor ) is incorporated .
【図４】図３に示すケースの断面図。FIG. 4 is a sectional view of the case shown in FIG.
【図５（Ａ）】Ａ−Ａ′線断面図。FIG. 5A is a cross-sectional view taken along the line AA ′.
【図５（Ｂ）】Ｂ−Ｂ′線断面図。FIG. 5B is a sectional view taken along line BB ′.
【図５（Ｃ）】Ｃ−Ｃ′線断面図。FIG. 5C is a sectional view taken along the line CC ′.
【図６】ケースとセンサを一体に形成した実施例を示す
断面図。FIG. 6 is a sectional view showing an embodiment in which a case and a sensor are integrally formed.
【図７】実験データの説明図。FIG. 7 is an explanatory diagram of experimental data.
１ 基板 ２ 入力端 ３ 固定部 ４ 溝彫り加工部 ５ 第１テコ ６ 第２テコ ７ 第３テコ ８ 発磁体 ９ 磁気検出器 １０ 補強板 １１ 円柱状ケース Ａ１ 第１柱状支点 Ａ２ 第２柱状支点 Ａ３ 第３柱状支点 Ｂ１ 第１柱状作用点 Ｂ２ 第２柱状作用点 Ｂ３ 第３柱状作用点1 substrate 2 input end 3 fixed portion 4 a groove slotting unit 5 first lever 6 second lever 7 a third lever 8 shots magnetized body 9 magnetic detector 10 reinforcing plate 11 a cylindrical case A 1 first columnar fulcrum A 2 second columnar Fulcrum A 3 3rd columnar fulcrum B 1 1st columnar operative point B 2 2nd columnar operative point B 3 3rd columnar operative point
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−175387（ＪＰ，Ａ) 実開 昭60−150406（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-175387 (JP, A) SAI-KAI 60-150406 (JP, U)
Claims (1)
よって、第１テコ、第２テコ、第３テコを平行配置で形
成し、第１テコの第１柱状支点を一端に配置すると共
に、この第１柱状支点に接近させて第１柱状作用点を配
置したこと、 第２テコの第２柱状支点は、第１テコの第１柱状支点と
反対側の一端に配置すると共に、この第２柱状支点に接
近させて第２柱状作用点を配置し、この第２柱状作用点
と第１テコの先端を連結したこと、 第３テコの第３柱状支点は、第２テコの第２柱状支点と
反対側の一端に配置すると共に、この第３柱状支点に接
近させて第３柱状作用点を配置し、この第３柱状作用点
と第２テコの先端を連結したこと、 第１テコ、第２テコ、第３テコの各柱状支点と各柱状作
用点は、夫々のテコに対して直角方向に向けて配置され
ていると共に、夫々の柱状支点と柱状作用点は、並列配
置であること、 各柱状支点と各柱状作用点の形状は、中央が最も細くな
るように両側を円弧状に切り欠いた鼓形状であること、 第１テコの第１柱状作用点に連結された歪み入力端は、
第１柱状作用点の延長線上に形成し、弾性基板は、この
入力端の部分において溝により分離されていること、 第３テコの先端側に発磁体を取り付け、弾性基板側に磁
気検出器を取り付けたこと、 を特徴とする歪み拡大装置。 1. A method of grooving an elastic substrate.
Therefore, the first lever, the second lever, and the third lever are arranged in parallel.
And the first columnar fulcrum of the first lever is placed at one end.
The first columnar working point close to this first columnar fulcrum.
It has location, second columnar fulcrum of the second lever includes a first columnar fulcrum of the first lever
Place it at one end on the opposite side and contact this second column fulcrum.
The second columnar action point is arranged close to the second columnar action point.
And the tip of the first lever are connected, and the third columnar fulcrum of the third lever is the second columnar fulcrum of the second lever.
Place it on one end on the opposite side and connect it to this third columnar fulcrum.
The third columnar action point is arranged close to this third columnar action point.
And the tip of the second lever is connected, each of the first lever, the second lever, and the third lever of each column fulcrum and each column work.
The points are placed at right angles to each lever.
In addition, each column fulcrum and column action point are arranged in parallel.
It is location, the shape of each columnar fulcrum and the columnar action point is thinnest it is central
As shown in the figure, it has a drum shape with both sides cut out in an arc shape, and the strain input end connected to the first columnar action point of the first lever is
The elastic substrate is formed on the extension line of the first column action point.
Separated by a groove at the input end, a magnet is attached to the tip of the third lever, and a magnet is attached to the elastic substrate.
Distortion magnifying device characterized by having an air detector attached .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3251179A JPH0812067B2 (en) | 1991-09-30 | 1991-09-30 | Distortion magnifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3251179A JPH0812067B2 (en) | 1991-09-30 | 1991-09-30 | Distortion magnifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0587563A JPH0587563A (en) | 1993-04-06 |
| JPH0812067B2 true JPH0812067B2 (en) | 1996-02-07 |
Family
ID=17218862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3251179A Expired - Lifetime JPH0812067B2 (en) | 1991-09-30 | 1991-09-30 | Distortion magnifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0812067B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024036209A (en) * | 2022-09-05 | 2024-03-15 | 有限会社テクノ菅谷 | Displacement magnifying device and measuring device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3815789B1 (en) * | 2005-03-11 | 2006-08-30 | 株式会社マコメ研究所 | Displacement transmission device |
| JP2007064786A (en) * | 2005-08-31 | 2007-03-15 | Nano Control:Kk | Force sensor |
| JP4976534B2 (en) * | 2010-10-04 | 2012-07-18 | 財団法人 地震予知総合研究振興会 | Stress and strain detector |
| US9027411B2 (en) | 2012-04-03 | 2015-05-12 | Public Interest Incorporated Foundations Association For The Development Of Earthquake Prediction | Stress and strain sensing device |
| FR3008179B1 (en) * | 2013-07-02 | 2015-06-12 | France Etat | PASSIVE MICROSCOPTER AND REVERSIBLE DEFORMATION |
| FR3124539A1 (en) * | 2021-06-29 | 2022-12-30 | Centre National De La Recherche Scientifique (Cnrs) | Device for measuring deformations in a borehole |
| FR3124540B1 (en) * | 2021-06-29 | 2023-07-28 | Centre Nat Rech Scient | Device for measuring deformations in a borehole |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776401A (en) * | 1980-10-30 | 1982-05-13 | Toshiba Corp | Displacement gage for cylindrical test piece |
| JPS59175387A (en) * | 1983-03-24 | 1984-10-04 | Nec Corp | Mechanical amplifying mechanism |
| JPS60150406U (en) * | 1984-03-17 | 1985-10-05 | 株式会社東京精密 | dimension detection device |
-
1991
- 1991-09-30 JP JP3251179A patent/JPH0812067B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024036209A (en) * | 2022-09-05 | 2024-03-15 | 有限会社テクノ菅谷 | Displacement magnifying device and measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0587563A (en) | 1993-04-06 |
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