JPH0618268Y2 - Displacement meter for measuring test pieces - Google Patents
Displacement meter for measuring test piecesInfo
- Publication number
- JPH0618268Y2 JPH0618268Y2 JP1986086141U JP8614186U JPH0618268Y2 JP H0618268 Y2 JPH0618268 Y2 JP H0618268Y2 JP 1986086141 U JP1986086141 U JP 1986086141U JP 8614186 U JP8614186 U JP 8614186U JP H0618268 Y2 JPH0618268 Y2 JP H0618268Y2
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- displacement
- strain
- displacement meter
- elastic body
- 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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【考案の詳細な説明】 Ａ．産業上の利用分野 この考案は材料試験機特に高温試験における試験片の伸
びなどを測定するための変位計に関するものである。Detailed Description of the Invention A. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material testing machine, and more particularly to a displacement meter for measuring elongation of a test piece in a high temperature test.
Ｂ．従来技術 高温試験は試験片を高周波加熱などにて加熱しながら引
張などの負荷を与える試験であるがこのような試験に使
用する試験片測定用の変位計としては、歪検出器へ試験
片からの輻射熱の影響を避けるためたとえば実開昭60-1
13541号「材料試験機の標点間変位計」を使用し、歪検
出器を試験片から遠ざけるようにしている。B. Conventional technology A high-temperature test is a test in which a load such as tension is applied while heating a test piece by high-frequency heating, etc. To avoid the effect of radiant heat on
No. 13541 “Material Gauge Gauge Displacement Gauge” is used to keep the strain detector away from the test piece.
Ｃ．考案が解決しようとする問題点 上記従来の変位計においては試験片の両標点に一端が係
止される検出レバーはその長さが長尺となり変位計全体
が長尺大形化するきらいがある。しかも歪の検出すなわ
ち検出レバーの両他端間変位の計測を差動トランスにて
行なう方式であるから検出レバー中間点を支点として傾
動する形式にする必要があり、支店を機枠に支持すると
ともに重量の差動トランスを垂架する必要から保持機構
に剛性をもたせなければならない。したがって変位計が
大形化せざるを得ない。C. Problems to be Solved by the Invention In the above conventional displacement meter, the detection lever whose one end is locked to both gauge points of the test piece has a long length, and the displacement meter as a whole tends to be long and large. is there. Moreover, since the strain is detected, that is, the displacement between the other ends of the detection lever is measured by a differential transformer, it is necessary to tilt the system with the intermediate point of the detection lever as a fulcrum. Since it is necessary to suspend a heavy differential transformer, the holding mechanism must have rigidity. Therefore, the displacement gauge has to be enlarged.
この考案はこれらの問題点を解決する変位計を提供せん
とするものである。This invention intends to provide a displacement meter that solves these problems.
Ｄ．問題点を解決するための手段 本考案にかかる試験片測定用変位計は、試験片にそれぞ
れ一端が係止される２本の検出レバーと、この両検出レ
バーが試験片の変位に応じて傾斜可能にそれぞれの他端
を弾性連結する弾性体と、前記両検出レバーの他端間で
前記弾性体に対して試験片と反対側に架設されかつ歪検
出器が付設された起歪部材とを有し、この歪検出器の出
力にて試験片の変位を測定することを特徴とする。D. Means for Solving Problems A displacement gauge for measuring a test piece according to the present invention comprises two detection levers, one end of which is locked to the test piece, and both detection levers being tilted according to the displacement of the test piece. An elastic body that elastically connects the other ends to each other, and a flexure member that is installed between the other ends of the detection levers on the side opposite to the test piece with respect to the elastic body and that has a strain detector attached. It is characterized in that the displacement of the test piece is measured by the output of the strain detector.
Ｅ．作用 差動トランスを使用しないので軽量化が図られ支点支持
部に特別の剛性を必要としない。しかも歪検出器は試験
片の側と反対側で輻射熱に断つことができる。E. Action Since no differential transformer is used, the weight is reduced and the fulcrum support does not require special rigidity. Moreover, the strain detector can be cut off from radiant heat on the side opposite to the test piece side.
Ｆ．実施例 以下図面に示す実施例にしたがってこの考案を説明す
る。F. Embodiments The present invention will be described below with reference to embodiments shown in the drawings.
第１図はこの考案による変位計を側方より見た図で、一
部を断面して示している。第２図は第１図II−IIよりみ
た図である。図において１と２は試験片ＴＰのそれぞれ
の標点に対しその一端の尖端部が係止している検出レバ
ーで、試験片ＴＰの変位を直接検知し、その量に比例し
て傾動する。３．４は両検出レバー１．２のそれぞれの
他端に固定ねじ８．９で固定保持された金具でその外方
端側には取付ねじ11．12にて座金６．７がそれぞれ取り
付けられている。この取付ねじ11．12は図示のとおり検
出レバー１．２の他端に穿設されたねじ孔にねじ込まれ
て座金６．７等を一体的に取り付ける。同時に板バネ５
が金具３．４と座金６．７との間に挟持されている。す
なわちこの板バネ５で両検出レバー１．２の他端間を弾
性連結されている。FIG. 1 is a side view of the displacement meter according to the present invention, and shows a partial cross section. FIG. 2 is a view seen from FIG. 1 II-II. In the figure, reference numerals 1 and 2 denote detection levers whose tip ends are locked to the respective reference points of the test piece TP, which directly detect the displacement of the test piece TP and tilt in proportion to the displacement. Numeral 3.4 is a metal fitting which is fixedly held to the other end of each of the detection levers 1.2 by a fixing screw 8.9, and washers 6.7 are attached to the outer end sides thereof with mounting screws 11.12. ing. The mounting screw 11.12 is screwed into a screw hole formed at the other end of the detection lever 1.2 as shown in the drawing to integrally mount a washer 6.7 and the like. At the same time leaf spring 5
Is clamped between the metal fitting 3.4 and the washer 6.7. That is, the leaf spring 5 elastically connects the other ends of the detection levers 1.2.
この場合板バネ５すなわち弾性体は両検出レバー１．２
が傾動するときの支点部として機能する。In this case, the leaf spring 5, that is, the elastic body is the detection lever 1.2
It functions as a fulcrum when tilting.
他方各検出レバー１．２の試験片ＴＰ側には保持枠14．
15が取り付けられていて変位計の試験片ＴＰへの係止状
態を維持する。16．17は保持枠14．15を検出レバー１．
２に固定するねじである。On the other hand, on the test piece TP side of each detection lever 1.2, a holding frame 14.
15 is attached to keep the displacement gauge locked to the test piece TP. 16.17 is a holding lever 14.15 for detecting lever 1.
It is a screw that is fixed to 2.
以上のような構成に加えてこの考案では起歪部材たとえ
ば薄い板バネ10が板バネ５と同様両金具３．４間でしか
も試験片ＴＰの側と反対側に架設されている。この起歪
部材10は両検出レバー１．２の傾動に比例して変形し歪
を生起する。13はこの起歪位置にて付設（付着）された
歪検出器たとえばストレーンゲージで両検出レバー１．
２の傾動量すなわち試験片ＴＰの変位に比例した電気信
号を出力する。In addition to the above-described structure, in the present invention, a strain generating member such as a thin leaf spring 10 is provided between both metal fittings 3.4, like the leaf spring 5, and on the side opposite to the test piece TP side. The strain-flexing member 10 deforms in proportion to the tilting movement of both detection levers 1.2 and causes strain. Reference numeral 13 denotes a strain detector attached (adhered) at this strain generating position, for example, a strain gauge, and both detection levers 1.
An electric signal proportional to the tilt amount of 2, that is, the displacement of the test piece TP is output.
この考案の特徴は以上のとおりであるが、検出レバーの
形状、変位計の試験片への保持（取り付け）などについ
ては図示例に限定されない。歪検出器もストレーンゲー
ジのみならず歪により信号を出力するセンサーであれば
よい。弾性体および起歪部材の材質も上記に限定されな
い。Although the features of the present invention are as described above, the shape of the detection lever, the holding (attachment) of the displacement meter to the test piece, etc. are not limited to the illustrated examples. The strain detector may be not only a strain gauge but also a sensor that outputs a signal by strain. The materials of the elastic body and the strain generating member are not limited to the above.
Ｇ．考案の効果 支点としての弾性体の剛性を高めることができるため、
変位計を試験片に保持させる点を確実ならしめるだけで
変位計としての剛性が高くなり、変位測定精度を高める
ことができる。また支点としての弾性体と起歪部材とが
別の部材で構成されるから起歪を弾性体の弾性強さとは
無関係に自由に選択できる。しかも起歪部材は試験片と
反対側に位置していて弾性体によって熱が遮断され、加
熱試験片の変位測定において検出レバーを長尺にする必
要がなく小形化がはかれる。もちろん高温試験以外の試
験片の伸びや収縮の変位計としても利用できる。G. Effect of the invention Since the rigidity of the elastic body as a fulcrum can be increased,
The rigidity of the displacement gauge increases and the accuracy of displacement measurement can be improved simply by making sure that the displacement gauge is held on the test piece. Further, since the elastic body serving as the fulcrum and the strain generating member are formed of different members, the strain can be freely selected regardless of the elastic strength of the elastic body. Moreover, the strain-flexing member is located on the opposite side of the test piece, and the heat is blocked by the elastic body, so that it is not necessary to lengthen the detection lever in the displacement measurement of the heating test piece, and the size can be reduced. Of course, it can also be used as a displacement gauge for elongation and contraction of test pieces other than the high temperature test.
第１図はこの考案による変位計を側方より見た図、第２
図は第１図II−II面より見た図である。 １．２……検出レバー，５……弾性体， 10……起歪部材，13……歪検出器， ＴＰ……試験片FIG. 1 is a side view of the displacement gauge according to the present invention, and FIG.
The figure is a view seen from the plane II-II in FIG. 1.2 ... Detection lever, 5 ... Elastic body, 10 ... Strain element, 13 ... Strain detector, TP ... Test piece
Claims (1)
検出レバーと、この両検出レバーが試験片の変位に応じ
て傾斜可能にそれぞれの他端を弾性連結する弾性体と、
前記両検出レバーの他端間で前記弾性体に対して試験片
と反対側に架設されかつ歪検出器が付設された起歪部材
とを有し、この歪検出器の出力にて試験片の変位を測定
することを特徴とする試験片測定用変位計。1. A test piece having two detection levers, one end of which is locked, and an elastic body which elastically connects the other ends of the two detection levers so as to be tiltable in accordance with the displacement of the test piece.
Between the other end of the both detection levers and a strain member that is installed on the opposite side to the test piece with respect to the elastic body and a strain detector is attached, and the output of this strain detector Displacement meter for measuring a test piece, characterized by measuring displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986086141U JPH0618268Y2 (en) | 1986-06-05 | 1986-06-05 | Displacement meter for measuring test pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986086141U JPH0618268Y2 (en) | 1986-06-05 | 1986-06-05 | Displacement meter for measuring test pieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62197045U JPS62197045U (en) | 1987-12-15 |
| JPH0618268Y2 true JPH0618268Y2 (en) | 1994-05-11 |
Family
ID=30942179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986086141U Expired - Lifetime JPH0618268Y2 (en) | 1986-06-05 | 1986-06-05 | Displacement meter for measuring test pieces |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618268Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4685541B2 (en) * | 2005-08-08 | 2011-05-18 | 株式会社青山製作所 | Bolt tension test method |
| WO2019109105A1 (en) * | 2017-12-01 | 2019-06-06 | Mts Systems Corporation | Extensometer structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57120233U (en) * | 1981-01-20 | 1982-07-26 | ||
| JPS60114941A (en) * | 1983-11-25 | 1985-06-21 | Sharp Corp | Device for multi-task control |
-
1986
- 1986-06-05 JP JP1986086141U patent/JPH0618268Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62197045U (en) | 1987-12-15 |
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