JPH0682351A - Displacement quantity measuring device of material tester - Google Patents
Displacement quantity measuring device of material testerInfo
- Publication number
- JPH0682351A JPH0682351A JP23192292A JP23192292A JPH0682351A JP H0682351 A JPH0682351 A JP H0682351A JP 23192292 A JP23192292 A JP 23192292A JP 23192292 A JP23192292 A JP 23192292A JP H0682351 A JPH0682351 A JP H0682351A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- chamber
- points
- detector
- diaphragm
- 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.)
- Withdrawn
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、密閉容器の内部に配置
した試験片に荷重を加え、試験片の２点間の変位量を計
測し、材料試験する材料試験機に係り、特に試験片の２
点間の変位量を測定する変位量測定装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material tester for applying a load to a test piece placed inside a closed container to measure the amount of displacement between two points of the test piece and testing the material, and particularly to the test piece. Of 2
The present invention relates to a displacement amount measuring device that measures a displacement amount between points.
【０００２】[0002]
【従来の技術】従来、例えば、高温高圧下で試験片を材
料試験するには、試験片を高温高圧容器の内部に配置
し、試験片に荷重を加える。そして、差動トランスなど
の検出器によって試験片の２点間の変位量を測定すれば
よい。これによって高温高圧したで試験片を材料試験す
ることができる。2. Description of the Related Art Conventionally, for example, in order to material-test a test piece under high temperature and high pressure, the test piece is placed inside a high temperature and high pressure container and a load is applied to the test piece. Then, the displacement amount between the two points of the test piece may be measured by a detector such as a differential transformer. As a result, the test piece can be material-tested under high temperature and high pressure.
【０００３】しかし、普通、差動トランスなどの検出器
は温度及び圧力に敏感であり、高温高圧容器の内部に挿
入することができない。従って、試験片の２点間の変位
量を高温高圧容器の外部に取り出すため、従来は高温高
圧容器の内部から外部に突出させた一対の検出ロッドを
使用し、シーリングによって各検出ロッドの回りを密封
していた。また、高温高圧容器内では各検出ロッドを試
験片の２点に連結し、高温高圧容器の外部では各検出ロ
ッドを検出器に連結していた。However, a detector such as a differential transformer is usually sensitive to temperature and pressure, and cannot be inserted inside a high temperature and high pressure container. Therefore, in order to take out the displacement amount between two points of the test piece to the outside of the high temperature and high pressure container, conventionally, a pair of detection rods protruding from the inside of the high temperature and high pressure container to the outside are used, and the circumference of each detection rod is sealed by sealing. It was sealed. Further, each detection rod was connected to two points of the test piece inside the high temperature and high pressure container, and each detection rod was connected to a detector outside the high temperature and high pressure container.
【０００４】試験片に荷重が加えられ、その２点間の変
位量が生じると、それに追随して各検出ロッドが軸方向
に移動する。従って、試験片の２点間の変位量が検出ロ
ッドによって取り出され、検出器によって測定される。When a load is applied to the test piece and a displacement amount between the two points is generated, each detection rod moves in the axial direction following the load. Therefore, the amount of displacement between the two points of the test piece is taken out by the detection rod and measured by the detector.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上述した従来
の装置では、シーリングと検出ロッドとの間に摩擦が生
じ、これが検出器の測定精度に影響することが避けられ
なかった。また、検出ロッドに高温高圧容器の内圧が作
用し、これも検出器の測定精度に影響する。更に、高温
高圧環境を生じさせるため、通常、高温高圧容器内に高
温高圧ガスや高温高圧液が封入されるが、この高温高圧
ガスや高温高圧液に対するシーリングの漏れや耐久性の
問題もある。However, in the above-mentioned conventional apparatus, friction is unavoidable between the ceiling and the detection rod, which inevitably affects the measurement accuracy of the detector. Further, the internal pressure of the high temperature and high pressure container acts on the detection rod, which also affects the measurement accuracy of the detector. Further, in order to generate a high temperature and high pressure environment, a high temperature and high pressure gas or a high temperature and high pressure liquid is usually enclosed in the high temperature and high pressure container, but there is a problem of sealing leakage and durability against the high temperature and high pressure gas and the high temperature and high pressure liquid.
【０００６】よって本発明は、上述した従来の問題点に
鑑み、高温高圧容器などの密封容器の内部に配置した試
験片の２点間の変位量を精度良く測定することのできる
変位量測定装置を提供することを目的としている。Therefore, in view of the above-mentioned conventional problems, the present invention is a displacement amount measuring device capable of accurately measuring the displacement amount between two points of a test piece arranged inside a sealed container such as a high temperature and high pressure container. Is intended to provide.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
本発明により成されたき材料試験機における変位量測定
装置は、密閉容器の内部に配置した試験片に荷重を加
え、前記試験片の２点間の変位量を差動トランスのよう
な検出器により計測し、材料試験する材料試験機におい
て、前記密閉容器をダイアフラムによって仕切り、前記
試験片を収容する第１の部屋と前記検出器を収容する第
２の部屋とを形成すると共に、前記ダイアフラムに気密
に貫設した連結部材によって前記試験片の２点と前記検
出器とを連結し、前記第１の部屋に高温高圧ガス又は液
を、前記第２の部屋に非圧縮性流体をそれぞれ満たした
ことを特徴としている。In order to achieve the above-mentioned object, a displacement amount measuring device in a material testing machine made according to the present invention applies a load to a test piece placed inside a closed container, and In a material testing machine that measures the amount of displacement between points by a detector such as a differential transformer and tests the material, the closed container is partitioned by a diaphragm, and the first chamber that houses the test piece and the detector are housed. Forming a second chamber, and connecting the two points of the test piece and the detector by a connecting member that is airtightly penetrating the diaphragm, the high temperature high pressure gas or liquid in the first chamber, Each of the second chambers is filled with an incompressible fluid.
【０００８】[0008]
【作用】上記構成により、ダイアフラムにより仕切られ
た気密容器の第１の部屋に試験片を、第２の部屋に差動
トランスのような検出器をそれぞれ収容し、ダイアフラ
ムに気密に貫設された連結部材によって試験片の２点と
検出器とを連結し、かつ試験片を収容している第１の部
屋のみに高温高圧ガス或いは液を満たし、検出器を収容
した第２の部屋には非圧縮性流体を満たしているので、
密閉容器の内部に配置した試験片に荷重を加え、前記試
験片の２点間の変位量を差動トランスのような検出器に
より計測する際、第１の部屋の圧力と第２の部屋の圧力
は常に略釣り合っており、しかも第２の部屋は非圧縮性
流体で満たされているので、ダイアフラムの変形はほと
んどない。よって、変位量を検出する検出器はダイアフ
ラムによって第１の部屋の高温高圧ガス或いは液から分
離され、その悪影響を受けることがなくなる。With the above structure, the test piece is housed in the first chamber of the airtight container partitioned by the diaphragm, and the detector such as the differential transformer is housed in the second chamber, and the diaphragm is hermetically penetrated. Two points of the test piece and the detector are connected by a connecting member, and only the first chamber containing the test piece is filled with the high temperature high pressure gas or liquid, and the second chamber containing the detector is not filled. Since it is filled with compressible fluid,
When a load is applied to the test piece placed inside the closed container and the displacement amount between the two points of the test piece is measured by a detector such as a differential transformer, the pressure in the first chamber and the pressure in the second chamber are measured. The pressure is always approximately balanced, and since the second chamber is filled with incompressible fluid, there is little deformation of the diaphragm. Therefore, the detector that detects the amount of displacement is separated from the high-temperature high-pressure gas or liquid in the first chamber by the diaphragm and is not adversely affected.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は本発明による材料試験機の変位量測定装置
の一実施例を示し、同図において、１は試験片であり、
この試験片１は高温高圧容器２の内部に配置されてい
る。高温高圧容器２は上ケース２ａ、中ケース２ｂ及び
下ケース２ｃとからなり、ダイヤフラム３ａ及び３ｂと
共に３つの部屋４ａ〜４ｃを形成している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a displacement measuring device of a material testing machine according to the present invention, in which 1 is a test piece,
This test piece 1 is arranged inside a high-temperature high-pressure container 2. The high temperature / high pressure container 2 is composed of an upper case 2a, a middle case 2b and a lower case 2c, and together with the diaphragms 3a and 3b form three chambers 4a-4c.
【００１０】上ケース２ａ及びダイヤフラム３ａによっ
て形成される部屋４ａには荷重検出器５が収容され、上
ケース２ａ、中ケース２ｂ、下ケース２ｃ及びダイヤフ
ラム３ａ及び３ｂによって形成される部屋４ｂには試験
片１が収容され、そして下ケース２ｃ及びダイヤフラム
３ｂによって形成される部屋４ｃには変位量を検出する
ための検出器としての２つの差動トランス６及び７が収
容されている。A load detector 5 is housed in a room 4a formed by the upper case 2a and the diaphragm 3a, and a test is carried out in a room 4b formed by the upper case 2a, the middle case 2b, the lower case 2c and the diaphragms 3a and 3b. The piece 1 is housed, and the chamber 4c formed by the lower case 2c and the diaphragm 3b houses two differential transformers 6 and 7 as detectors for detecting the amount of displacement.
【００１１】試験片１の一端はダイヤフラム３ｂに気密
に貫設され部屋４ｃから部屋４ｂ内に突出されているプ
ッシュプルトッド８に連結され、他端はダイヤフラム３
ａに気密に貫設され部屋４ａから部屋４ｂ内に突出され
ている連結ロッド９に連結される。連結ロッド９は上ケ
ース２ａの底部に固定された荷重検出器５に連結されて
いる。One end of the test piece 1 is connected airtightly to the diaphragm 3b and is connected to a push-pull tod 8 protruding from the chamber 4c into the chamber 4b, and the other end is connected to the diaphragm 3.
It is connected to a connecting rod 9 that is airtightly provided in a and projects from the chamber 4a into the chamber 4b. The connecting rod 9 is connected to the load detector 5 fixed to the bottom of the upper case 2a.
【００１２】差動トランス６及び７は、可動鉄心６ａ及
び７ａと部屋４ｃ内に固定されたコイル６ｂ及び７ｂと
からなり、可動鉄心６ａ及び７ａは、ダイアフラム３ｂ
に気密に貫設され部屋４ｂから部屋ｃ内に突出されてい
る連結部材としてのアーム１０及び１１の先端にそれぞ
れ固定され、アーム１０及び１１の他端は試験片１の２
点にそれぞれ連結されている。The differential transformers 6 and 7 are composed of movable iron cores 6a and 7a and coils 6b and 7b fixed in a room 4c, and the movable iron cores 6a and 7a are composed of a diaphragm 3b.
Are fixed to the tips of arms 10 and 11 as connecting members that are airtightly penetrated through the chamber 4b and project into the chamber c from the chamber 4b.
Each is connected to a point.
【００１３】なお、上記プッシュプルロッド８は高温高
圧容器２の外に配置されたサーボ弁１１ａ付きの油圧式
アクチュエータ１１のピストンロッドを下ケース２ｃの
底部をシーリングを介して摺動自在に貫通して延長した
ものである。The push-pull rod 8 slidably penetrates the piston rod of a hydraulic actuator 11 with a servo valve 11a arranged outside the high-temperature high-pressure container 2 through the bottom of the lower case 2c via a sealing. It is an extension.
【００１４】上記部屋４ｂを上ケース２ａ及び２ｂとダ
イヤフラム３ａ及び３ｂと共に形成している下ケース２
ｃの外壁には、部屋４ｂ内に所定の高温高圧ガス或いは
高温高圧液を流入したり、流入した高温高圧ガス或いは
高温高圧液を排出するための流入・排出管１２ｂが設け
られている。The lower case 2 which forms the chamber 4b together with the upper cases 2a and 2b and the diaphragms 3a and 3b.
The outer wall of c is provided with an inflow / outflow pipe 12b for inflowing a predetermined high-temperature high-pressure gas or high-temperature high-pressure liquid into the chamber 4b and discharging the inflowing high-temperature high-pressure gas or high-temperature high-pressure liquid.
【００１５】上記部屋４ａをダイヤフラム３ａと共に形
成する上ケース２ａの外壁には、部屋４ａ内に電気絶縁
性の非圧縮性流体、例えば油を流入して封止するための
流入管１２ａが設けられている。そして、上記部屋４ｃ
をダイアフラム３ｂと共に形成する下ケース２ｃの外壁
には、部屋４ｃ内に電気絶縁性の非圧縮性流体、例えば
油を流入して封止する流入管１２ｃが設けられている。On the outer wall of the upper case 2a which forms the chamber 4a together with the diaphragm 3a, an inflow pipe 12a is provided for inflowing and sealing an electrically insulative incompressible fluid, for example, oil into the chamber 4a. ing. And the above room 4c
An inflow pipe 12c is provided on the outer wall of the lower case 2c that forms the diaphragm 3b together with the insulative incompressible fluid, for example, oil, into the chamber 4c.
【００１６】なお、試験中は管１２ｂに設けられた図示
しないバルブを閉じて部屋４ｂ内のは保持される。ま
た、上記部屋４ｂからのガスや液の排出は、部屋４ｂ内
の試験片１を交換する際に行われるが、部屋４ａ及び４
ｂ内の非圧縮性流体の圧力を大気圧に略等しくしておけ
ば、部屋４ｂからのガスや液の排出によってダイアフラ
ム３ａ及び３ｂが変形することはない。During the test, a valve (not shown) provided in the tube 12b is closed to keep the inside of the chamber 4b. The discharge of gas or liquid from the chamber 4b is performed when the test piece 1 in the chamber 4b is replaced, but the chambers 4a and 4a
If the pressure of the incompressible fluid in b is made substantially equal to the atmospheric pressure, the diaphragms 3a and 3b will not be deformed by the discharge of gas or liquid from the chamber 4b.
【００１７】以上の構成により、変位検出器である作動
トランス６及び７と荷重検出器５は、ダイヤフラム３ｂ
及び３ａによって高温高圧ガス或いは液を収容した部屋
４ｂと区切られ、非圧縮性流体が充填された部屋４ｃ及
び４ａ内にそれぞれ収容されているので、高温にさらさ
れることがなく、正常に動作することができる。With the above construction, the operation transformers 6 and 7 which are displacement detectors and the load detector 5 are provided with the diaphragm 3b.
And 3a separate the room 4b containing the high-temperature high-pressure gas or liquid, and are housed in the rooms 4c and 4a filled with the incompressible fluid, respectively, so that they are not exposed to high temperature and operate normally. be able to.
【００１８】また、試験片１を材料試験するとき、先
ず、部屋４ｂ内に流入・排出管１２ｂを通じて高温高圧
ガス或いは液を流入するが、部屋４ａ及び４ｂには非圧
縮性流体が充填されているので、部屋４ｂと部屋４ａ及
び４ｂとの内圧が等しくなって連結ロッド９並びにアー
ム１０及び１１は部屋４ｂの内圧による移動が生じな
い。When testing the material of the test piece 1, first, a high temperature high pressure gas or liquid is introduced into the chamber 4b through the inflow / exhaust pipe 12b, but the chambers 4a and 4b are filled with an incompressible fluid. Therefore, the internal pressures of the chamber 4b and the chambers 4a and 4b become equal, and the connecting rod 9 and the arms 10 and 11 do not move due to the internal pressure of the chamber 4b.
【００１９】なお、プッシュプルロッド８に作用する容
器２の部屋４ｃ内の内圧は、荷重検出器５の出力が０に
なるようにアクチュエータ１１を作動させることにより
均衡させて相殺し、容器２内の内圧が試験片１の荷重に
影響しないようにできる。The internal pressure in the chamber 4c of the container 2 acting on the push-pull rod 8 is balanced and offset by operating the actuator 11 so that the output of the load detector 5 becomes 0, and the internal pressure of the container 2 is reduced. It is possible to prevent the internal pressure from affecting the load of the test piece 1.
【００２０】このような状態でアクチュエータ１１を駆
動すると、プッシュプルロッド８が軸方向に変位する。
従って、例えば試験片１に引張圧縮繰り返し荷重を加え
ることができる。その反力は荷重検出器５及び上ケース
２ａ、中ケース２ｂ、下ケース２ｃを介してアクチュエ
ータ１１のケース１１ａに伝達されて支持される。試験
片１に荷重が加えられ、その２点間の変位量が生じる
と、それに追随してアーム１０及び１１が移動するの
で、アーム１０及び１１の移動量の差、すなわち作動ト
ランス６及び７の出力の差によって２点間の変位量が取
り出される。When the actuator 11 is driven in such a state, the push-pull rod 8 is axially displaced.
Therefore, for example, a tensile-compression repeating load can be applied to the test piece 1. The reaction force is transmitted to and supported by the case 11a of the actuator 11 via the load detector 5, the upper case 2a, the middle case 2b, and the lower case 2c. When a load is applied to the test piece 1 and a displacement amount between the two points is generated, the arms 10 and 11 move following the load. Therefore, the difference between the movement amounts of the arms 10 and 11, that is, the operating transformers 6 and 7 The amount of displacement between the two points is extracted based on the output difference.
【００２１】上述のようにプッシュプルロッド８が軸方
向に変位し、かつアーム１０及び１１が移動する際にダ
イヤフラム３ｂも一緒に変位するが、プッシュプルロッ
ド８並びにアーム１０及び１１の変位や移動による各部
屋４ｂ及び４ｃの内圧の変化はダイヤフラム３ｂの変位
によって吸収される。As described above, the push-pull rod 8 is displaced in the axial direction, and when the arms 10 and 11 are moved, the diaphragm 3b is also displaced together. However, due to the displacement and movement of the push-pull rod 8 and the arms 10 and 11, The change in the internal pressure of the chambers 4b and 4c is absorbed by the displacement of the diaphragm 3b.
【００２２】この装置では、試験片１の２点間の変位に
よって移動するアーム１０及び１１がダイアフラム３ｂ
に気密に貫設され、例えば電気絶縁性の非圧縮性の油が
満たされた部屋４ｃ内の作動トランス６及び７の可動鉄
心６ａ及び７ａに連結されているので、差動トランス６
及び７は高温高圧ガス又は液にさらされることがなく、
特に高温高圧ガス又は液が腐食性のガスや海水の場合に
特に有効となる。In this apparatus, the arms 10 and 11 which move by the displacement between the two points of the test piece 1 have the diaphragm 3b.
Since it is connected to the movable iron cores 6a and 7a of the operating transformers 6 and 7 in the chamber 4c filled with electrically incompressible oil, for example, the differential transformer 6
And 7 are not exposed to hot high pressure gas or liquid,
It is particularly effective when the high-temperature high-pressure gas or liquid is a corrosive gas or seawater.
【００２３】また、アーム１０及び１１に対して従来の
ようにシーリングを使用する必要がないので、ダイヤフ
ラム３ｂと共に試験片１の荷重方向と同じ方向に変位す
るだけであり、摩擦の問題は生じない。Further, since it is not necessary to use a sealing for the arms 10 and 11 as in the conventional case, the arms 10 and 11 are displaced in the same direction as the load direction of the test piece 1 together with the diaphragm 3b, and the problem of friction does not occur. .
【００２４】更に、部屋４ｂに高温高圧ガス又は液を充
填した状態で、部屋４ｂ及び４ｃの内圧が等しくなるの
で、アーム１０及び１１に作用する上向きと下向きの力
は実質的に同一で、互いに相殺される。従って、差動ト
ランス６及び７の測定精度は高く、また容器２の内圧が
差動トランス６及び７の測定精度に影響しない。Furthermore, since the internal pressures of the chambers 4b and 4c are equalized when the chamber 4b is filled with the high temperature and high pressure gas or liquid, the upward and downward forces acting on the arms 10 and 11 are substantially the same, and Offset. Therefore, the measurement accuracy of the differential transformers 6 and 7 is high, and the internal pressure of the container 2 does not affect the measurement accuracy of the differential transformers 6 and 7.
【００２５】次に、容器２内において試験片１をプッシ
ュプルロッド８及び連結ロッド９に連結する方法を以下
説明する。先ず、容器２の部屋４ｂ内のガスや液を管１
２ｂを通じて排出する。その後、上ケース２ａ、中ケー
ス２ｂ及び下ケース２ｃ間の連結を解いて分解し、先ず
試験片１の一端をプッシュプルロッド８に連結する。続
いて、て中ケース２ｂを一側にずらして作業空間を作
り、この作業空間を通じて試験片１の他端を連結ロッド
９に連結する。そして、最後に中ケース２ｂを図示のよ
うな状態に戻して重ね、図示しない締結具によって上ケ
ース２ａ、中ケース２ｂ及び下ケース２ｃの相互間を締
め付けてから、部屋４ｂにガスや液を管１２ｂを通じて
所定圧に充填して図示の状態にしてから試験を開始す
る。Next, a method of connecting the test piece 1 to the push-pull rod 8 and the connecting rod 9 in the container 2 will be described below. First, the gas or liquid in the chamber 4b of the container 2 is fed to the pipe 1
Discharge through 2b. After that, the connection between the upper case 2a, the middle case 2b and the lower case 2c is released and disassembled. First, one end of the test piece 1 is connected to the push-pull rod 8. Then, the middle case 2b is shifted to one side to create a working space, and the other end of the test piece 1 is connected to the connecting rod 9 through this working space. Then, finally, the middle case 2b is returned to the state as shown and overlapped, and the upper case 2a, the middle case 2b and the lower case 2c are fastened with each other by fasteners (not shown), and then gas or liquid is piped into the chamber 4b. The test is started after a predetermined pressure is filled through 12b and the state shown in the drawing is obtained.
【００２６】上述の説明では、部屋４ｂを高温にするた
めの手段について特に言及しなかったが、部屋４ｂに流
入するガスや液を予め過熱したり、部屋４ｂ内に過熱手
段を設けて流入後に過熱したりするようにできる。In the above description, the means for raising the temperature of the room 4b is not particularly mentioned, but the gas or liquid flowing into the room 4b is preheated beforehand, or after the superheat means is provided in the room 4b, the gas or liquid is flown into the room 4b. Can be overheated.
【００２７】[0027]
【発明の効果】以上説明したように本発明によれば、密
閉容器の内部に配置した試験片に荷重を加え、前記試験
片の２点間の変位量を差動トランスのような検出器によ
り計測する際、連結部材は試験片の２点の変位に伴って
ダイアフラムと一緒に変位するだけであるので、連結部
材に対してシーリングを使用する必要がなく、摩擦の問
題は生じない。As described above, according to the present invention, a load is applied to a test piece placed inside a closed container, and a displacement amount between two points of the test piece is detected by a detector such as a differential transformer. During the measurement, the connecting member is only displaced together with the diaphragm along with the displacement of the two points of the test piece, so that it is not necessary to use sealing for the connecting member and the problem of friction does not occur.
【００２８】また、両部屋の内圧が等しく、連結部材に
作用する上向きと下向きの力は実質的に同一で、互いに
相殺されるので、検出器の測定精度は高く、また容器の
内圧が検出器の測定精度に影響せず、高温高圧容器など
の密封容器の内部に配置した試験片の２点間の変位量を
精度良く行うことのできる。Also, since the internal pressures of both chambers are equal and the upward and downward forces acting on the connecting member are substantially the same and cancel each other out, the measurement accuracy of the detector is high and the internal pressure of the container is high. It is possible to accurately perform the amount of displacement between two points of a test piece arranged inside a sealed container such as a high temperature and high pressure container without affecting the measurement accuracy of 1.
【図１】本発明による材料試験機の変位量測定装置の一
実施例を示す図である。FIG. 1 is a diagram showing an embodiment of a displacement measuring device of a material testing machine according to the present invention.
１ 試験片 ２ 密閉容器 ３ｂ ダイアフラム ４ｂ 第１の部屋 ４ｃ 第２の部屋 ６，７ 差動トランス（検出器） １０，１１ アーム（連結部材） 1 Test piece 2 Airtight container 3b Diaphragm 4b First chamber 4c Second chamber 6,7 Differential transformer (detector) 10,11 Arm (connecting member)
Claims (1)
を加え、前記試験片の２点間の変位量を差動トランスの
ような検出器により計測し、材料試験する材料試験機に
おいて、 前記密閉容器をダイアフラムによって仕切り、前記試験
片を収容する第１の部屋と前記検出器を収容する第２の
部屋とを形成すると共に、前記ダイアフラムに気密に貫
設した連結部材によって前記試験片の２点と前記検出器
とを連結し、前記第１の部屋に高温高圧ガス又は液を、
前記第２の部屋に非圧縮性流体をそれぞれ満たしたこと
を特徴とする変位量測定装置。1. A material testing machine for testing a material by applying a load to a test piece arranged inside an airtight container, measuring a displacement between two points of the test piece by a detector such as a differential transformer, and performing a material test. The airtight container is partitioned by a diaphragm to form a first chamber for accommodating the test piece and a second chamber for accommodating the detector, and the test piece of the test piece is connected by a connecting member which is hermetically penetrated through the diaphragm. Two points are connected to the detector, and high temperature high pressure gas or liquid is supplied to the first chamber,
A displacement amount measuring device, wherein the second chamber is filled with an incompressible fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23192292A JPH0682351A (en) | 1992-08-31 | 1992-08-31 | Displacement quantity measuring device of material tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23192292A JPH0682351A (en) | 1992-08-31 | 1992-08-31 | Displacement quantity measuring device of material tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0682351A true JPH0682351A (en) | 1994-03-22 |
Family
ID=16931167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23192292A Withdrawn JPH0682351A (en) | 1992-08-31 | 1992-08-31 | Displacement quantity measuring device of material tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0682351A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2792412A1 (en) * | 1999-04-14 | 2000-10-20 | Framatome Sa | Test piece mechanical testing in an autoclave to determine axial strain with the test piece and measurement sensors placed within the autoclave and the sensor output fed outside of the autoclave to give improved accuracy |
| KR102244756B1 (en) * | 2020-11-13 | 2021-04-27 | 한국가스안전공사 | Chamber type tensile tester for tensile test in high pressure hydrogen environment |
| KR102244772B1 (en) * | 2020-11-13 | 2021-04-27 | 한국가스안전공사 | Chamber type tensile tester using diaphragm for tensile test in high pressure hydrogen environment |
-
1992
- 1992-08-31 JP JP23192292A patent/JPH0682351A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2792412A1 (en) * | 1999-04-14 | 2000-10-20 | Framatome Sa | Test piece mechanical testing in an autoclave to determine axial strain with the test piece and measurement sensors placed within the autoclave and the sensor output fed outside of the autoclave to give improved accuracy |
| KR102244756B1 (en) * | 2020-11-13 | 2021-04-27 | 한국가스안전공사 | Chamber type tensile tester for tensile test in high pressure hydrogen environment |
| KR102244772B1 (en) * | 2020-11-13 | 2021-04-27 | 한국가스안전공사 | Chamber type tensile tester using diaphragm for tensile test in high pressure hydrogen environment |
| WO2022102897A1 (en) * | 2020-11-13 | 2022-05-19 | 한국가스안전공사 | Chamber-type tensile tester using diaphragm for tensile test in high pressure hydrogen environment |
| WO2022102898A1 (en) * | 2020-11-13 | 2022-05-19 | 한국가스안전공사 | Chamber-type tensile testing device for tensile test in high-pressure hydrogen environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991102 |