JPH0454882B2 - - Google Patents
Info
- Publication number
- JPH0454882B2 JPH0454882B2 JP13907983A JP13907983A JPH0454882B2 JP H0454882 B2 JPH0454882 B2 JP H0454882B2 JP 13907983 A JP13907983 A JP 13907983A JP 13907983 A JP13907983 A JP 13907983A JP H0454882 B2 JPH0454882 B2 JP H0454882B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- test piece
- displacement meter
- displacement
- autoclave
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims description 51
- 238000012360 testing method Methods 0.000 claims description 46
- 238000004154 testing of material Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
- G01N2203/021—Treatment of the signal; Calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
この発明は、オートクレーブ内の高温高圧条件
下で試験片を材料試験する高温高圧材料試験機に
関するものであり、特にその試験片の変形量を測
定する変位計を校正するための変位校正装置に関
するものである。[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a high-temperature and high-pressure material testing machine that tests the material of a test piece under high-temperature and high-pressure conditions in an autoclave, and particularly relates to a high-temperature and high-pressure material testing machine that tests the material of a test piece under high-temperature and high-pressure conditions in an autoclave. The present invention relates to a displacement calibration device for calibrating a displacement meter that measures displacement.
(ロ) 従来技術
高温高圧条件下で試験片を材料試験するとき、
オートクレーブ内に収容した試験片を負荷ロツド
と固定ロツドに連結し、変位計の一対のスタンド
を試験片に固定する方式が一般に使用されてい
る。負荷ロツドを軸方向に変位させると、試験片
に荷重が加えられ、その反力は固定ロツドによつ
て受けられ、支持される。これと同時に、変位計
によつて試験片の変形量が測定される。したがつ
て、オートクレーブ内の高温高圧条件下で試験片
を材料試験することがきる。この種の高温高圧材
料試験機において、その変位計を校正するとき、
従来は大気圧で変位計を校正していた。しかしな
がら、オートクレーブ内の高温高圧条件下で試験
片を材料試験すると、オートクレーブ内の温度お
よび圧力が変位計の測定値に影響するのは避けら
れない。このため、大気圧下で変位計を校正して
も、正確に試験片の変形量を測定することはでき
なかつた。(b) Prior art When performing a material test on a specimen under high temperature and high pressure conditions,
Generally, a method is used in which a test piece housed in an autoclave is connected to a load rod and a fixed rod, and a pair of stands of a displacement meter are fixed to the test piece. When the load rod is displaced in the axial direction, a load is applied to the specimen, and the reaction force is received and supported by the fixed rod. At the same time, the amount of deformation of the test piece is measured by a displacement meter. Therefore, the specimen can be subjected to material testing under high temperature and high pressure conditions in an autoclave. When calibrating the displacement meter in this type of high-temperature, high-pressure material testing machine,
Conventionally, displacement meters were calibrated using atmospheric pressure. However, when material testing a specimen under high temperature and high pressure conditions inside an autoclave, it is inevitable that the temperature and pressure inside the autoclave will affect the measurement value of the displacement meter. For this reason, even if the displacement meter was calibrated under atmospheric pressure, it was not possible to accurately measure the amount of deformation of the test piece.
(ハ) 目 的
したがつて、この発明は、高温高圧材料試験機
において、実際に試験に使用するオートクレーブ
の高温高圧条件下で変位計を校正し、もつて正確
に試験片の変形量を測定することができるように
すべくなされたものである。(c) Purpose Therefore, this invention calibrates a displacement meter in a high-temperature, high-pressure material testing machine under the high-temperature, high-pressure conditions of an autoclave actually used for testing, thereby accurately measuring the amount of deformation of a test piece. This was done to make it possible to do so.
(ニ) 構 成
この発明によれば、
オートクレーブ内に収容した試験片を負荷ロツ
ドと固定ロツドに連結し、変位計の一対のスタン
ドを前記試験片に固定し、前記負荷ロツドを軸方
向に変位させ、前記試験片に荷重を加えるととも
に、前記変位計によつて前記試験片の変位量を測
定し、前記オートクレーブ内の高温高圧条件下で
前記試験片を材料試験するようにした材料試験機
に使用する装置であつて、
前記変位計の校正にあたつて、前記試験片に代
えて前記オートクレーブ内に収容し、前記負荷ロ
ツドの軸方向に対向させ、前記負荷ロツドと前記
固定ロツドに取り付けることができる一対のブロ
ツクと、
前記変位計の各スタンドを前記負荷ロツドと前
記固定ロツドに取り付けた前記各ブロツクに固定
するための手段とからなり、
前記負荷ロツドを軸方向に変位させ、前記変位
計とは別の検出器によつて前記負荷ロツドの変位
量を測定し、前記検出器の測定値と前記変位計の
測定値を照合し、前記オートクレーブの高温高圧
条件下で前記変位計を校正するようにしたことを
特徴とする変位計校正装置
が提供される。(D) Configuration According to the present invention, a test piece housed in an autoclave is connected to a load rod and a fixed rod, a pair of stands of a displacement meter are fixed to the test piece, and the load rod is displaced in the axial direction. and applying a load to the test piece, measuring the amount of displacement of the test piece with the displacement meter, and performing a material test on the test piece under high temperature and high pressure conditions in the autoclave. In the apparatus used, when calibrating the displacement meter, the test piece is housed in the autoclave in place of the test piece, and is mounted to the load rod and the fixed rod, facing each other in the axial direction of the load rod. means for fixing each stand of the displacement gauge to each of the blocks attached to the load rod and the fixing rod, the means for displacing the load rod in the axial direction, The amount of displacement of the load rod is measured by a separate detector, the measured value of the detector is compared with the measured value of the displacement meter, and the displacement meter is calibrated under the high temperature and high pressure conditions of the autoclave. There is provided a displacement meter calibration device characterized by the following.
(ホ) 実施例
以下、この発明の実施例を図面について説明す
る。(E) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図において、試験片はオートクレーブ１内に収
容され、負荷ロツド２と固定ロツド３に連結され
る。この実施例では、一対の固定ロツド３がオー
トクレーブ１内に互に間隔をおいて配置され、オ
ートクレーブ１の蓋板４に固定されている。負荷
ロツド２は各固定ロツド３間の位置で蓋板４を貫
通し、オートクレーブ１内に突出している。ま
た、負荷ロツド２はオートクレーブ１の外部に設
けられた油圧アクチユエータに連結され、差動ト
ランスに接続されている。油圧アクチユエータは
負荷ロツド２を軸方向に変位させ、差動トランス
は負荷ロツド２の変位量を検出する。 In the figure, the specimen is housed in an autoclave 1 and connected to a loading rod 2 and a fixing rod 3. In this embodiment, a pair of fixing rods 3 are arranged within the autoclave 1 at a distance from each other and are fixed to a cover plate 4 of the autoclave 1. The load rod 2 passes through the cover plate 4 at a position between each fixed rod 3 and projects into the autoclave 1. Further, the load rod 2 is connected to a hydraulic actuator provided outside the autoclave 1, and is connected to a differential transformer. The hydraulic actuator displaces the load rod 2 in the axial direction, and the differential transformer detects the amount of displacement of the load rod 2.
変位計５は試験片の変位量を測定するためのも
ので、一対のスタンド８，９を有し、後述するよ
うに、試験片を材料試験するとき、スタンド８，
９は試験片に固定される。また、変位計５を校正
するとき、第１図に示すように、試験片に代えて
一対のブロツク６，７がオートクレーブ１内に収
容され、各ブロツク６，７が負荷ロツド２の軸方
向に対向し、負荷ロツド２と固定ロツド３に取り
つけられ、、取付ねじ１０により、各スタンド８，
９が負荷ロツド２と固定ロツド３に取り付けられ
た各ブロツク６，７に固定される。また、第２図
に示すように、各ブロツク６，７は負荷ロツド２
の軸方向に相対的に移動するように案内ピン１１
によつて案内されている。案内ピン１１は、各ブ
ロツク６，７の孔１２内に負荷ロツド２の軸方向
にスライド可能に挿入されている。 The displacement meter 5 is for measuring the amount of displacement of the test piece, and has a pair of stands 8 and 9. As will be described later, when performing a material test on the test piece, the stand 8,
9 is fixed to the test piece. Furthermore, when calibrating the displacement meter 5, as shown in FIG. Each stand 8,
9 is fixed to each block 6,7 attached to the load rod 2 and fixing rod 3. Further, as shown in FIG. 2, each block 6, 7 is connected to a load rod 2
The guide pin 11 is moved relative to the axial direction of the guide pin 11.
Guided by. A guide pin 11 is inserted into a hole 12 in each block 6, 7 so as to be slidable in the axial direction of the load rod 2.
第３図に示すように、変位計５は切欠１３を設
けた試験片T.Pの材料試験に使用用し、板ばね１
４に張り付けたひずみゲージ１５によつて試験片
T.Pの変形量を測定するようにしたものである。
板ばね１４はスタンド９に取り付けられ、予荷重
によつて予め撓まされている。そして、板ばね４
の弾性によつて連結ピン１６が板ばね１４の係合
片１７とスタンド８の調節ねじ１８間に挾まれ、
保持されている。試験片T.Pを材料試験すると
き、試験片T.Pは切欠１３の両側で負荷ロツド２
と固定ロツド３に連結される。各スタンド８，９
は切欠１３の両側で試験片T.Pに固定される。負
荷ロツド２が軸方向に変位すると、試験片T.Pに
荷重が加えられ、その反力は固定ロツド３によつ
て受けられ、支持される。荷重は矢印１９の方向
に作用し、試験片T.Pを変形させ、切欠１３を開
口させ、亀裂２０を生じさせる。したがつて、変
位計５のスタンド８，９が試験片T.Pの変形に応
じて相対的に変位し、板ばね１４の撓みを緩和さ
せ、そのひずみを変化させる。ひずみゲージ１５
は板ばね１４のひずみを検出し、試験片T.Pの変
形量を測定する。したがつて、オートクレーブ１
内の高温高圧条件下で試験片T.Pが材料試験され
るものである。 As shown in FIG.
The test piece was measured by strain gauge 15 attached to 4.
This is designed to measure the amount of deformation of the TP.
The leaf spring 14 is attached to the stand 9 and is pre-deflected by a preload. And leaf spring 4
Due to the elasticity of the connecting pin 16 is held between the engaging piece 17 of the leaf spring 14 and the adjusting screw 18 of the stand 8,
Retained. When the test piece TP is subjected to a material test, the test piece TP is loaded with the load rod 2 on both sides of the notch 13.
and is connected to the fixed rod 3. Each stand 8,9
are fixed to the test piece TP on both sides of the notch 13. When the load rod 2 is displaced in the axial direction, a load is applied to the test piece TP, and the reaction force is received and supported by the fixed rod 3. The load acts in the direction of the arrow 19, deforms the test piece TP, opens the notch 13, and generates a crack 20. Therefore, the stands 8 and 9 of the displacement meter 5 are relatively displaced in accordance with the deformation of the test piece TP, thereby relaxing the deflection of the leaf spring 14 and changing its strain. Strain gauge 15
detects the strain of the leaf spring 14 and measures the amount of deformation of the test piece TP. Therefore, autoclave 1
The specimen TP is subjected to material testing under high temperature and high pressure conditions.
前記のように構成された変位計校正装置におい
て、変位計５を校正するには、各ブロツク６，７
を負荷ロツド２を固定ロツド３に取り付け、各ス
タンド８，９を各ブロツク６，７に固定し、負荷
ロツド２を軸方向に変位させればよい。負荷ロツ
ド２は一方のブロツク６と一体的に変位する。各
ブロツク６，７は案内ピン１１によつて案内さ
れ、負荷ロツド２の軸方向に相対的に変位する。
したがつて、変位計５の各スタンド８，９が負荷
ロツド２の軸方向に相対的に変位し、板ばね１４
の撓みを緩和させ、そのひずみを変化させる。ひ
ずみゲージ１５は板ばね１４のひずみを検出し、
負荷ロツド２の変位量を測定する。従つて、変位
計５とは別の検出器である前記差動トランスによ
つて負荷ロツド２の変位量を測定し、その測定値
と変位計５の測定値を照合すると、オートクレー
ブ１の高温高圧条件下で変位計５を校正すること
ができる。 In the displacement meter calibration device configured as described above, each block 6, 7 is required to calibrate the displacement meter 5.
The load rod 2 is attached to the fixed rod 3, each stand 8, 9 is fixed to each block 6, 7, and the load rod 2 is displaced in the axial direction. The load rod 2 is displaced integrally with one of the blocks 6. Each block 6, 7 is guided by a guide pin 11 and is displaced relative to the load rod 2 in the axial direction.
Therefore, each stand 8, 9 of the displacement meter 5 is relatively displaced in the axial direction of the load rod 2, and the leaf spring 14
to reduce the deflection and change the strain. The strain gauge 15 detects the strain of the leaf spring 14,
Measure the amount of displacement of the load rod 2. Therefore, when the displacement amount of the load rod 2 is measured by the differential transformer, which is a detector different from the displacement meter 5, and the measured value is compared with the measured value of the displacement meter 5, the high temperature and high pressure of the autoclave 1 is detected. The displacement meter 5 can be calibrated under the following conditions.
この装置は、案内ピン１１によつて案内された
各ブロツク６，７が負荷ロツド２と固定ロツド３
に取り付けられているだけであるため、負荷ロツ
ド２を軸方向に変位させても負荷ロツド２、固定
ロツド３および各ブロツク６，７に荷重はほとん
ど加えられない。したがつて、負荷ロツド２、固
定ロツド３および各ブロツク６，７が変形せず、
変位計５の測定値は負荷ロツドの変位量に正確に
対応する。したがつて、変位計５を正確に校正す
ることができる。 In this device, each block 6, 7 guided by a guide pin 11 is connected to a load rod 2 and a fixed rod 3.
Since the rod is only attached to the rod, even if the load rod 2 is displaced in the axial direction, almost no load is applied to the load rod 2, the fixed rod 3, and each of the blocks 6 and 7. Therefore, the load rod 2, fixed rod 3 and each block 6, 7 are not deformed,
The measured value of the displacement meter 5 corresponds exactly to the displacement of the load rod. Therefore, the displacement meter 5 can be calibrated accurately.
オートクレーブ１の高温高圧条件下で変位計５
を校正すると、オートクレーブ１内の温度および
圧力が変位計５の測定値に影響する。したがつ
て、試験片T.Pを材料試験するとき、オートクレ
ーブ１の温度および圧力が変位計５の測定値に影
響しても、それに関係なく正確に試験片T.Pの変
形量を測定することができる。 Displacement meter 5 under high temperature and high pressure conditions in autoclave 1
When calibrating, the temperature and pressure inside the autoclave 1 affect the measured value of the displacement meter 5. Therefore, when subjecting the test piece TP to a material test, even if the temperature and pressure of the autoclave 1 affect the measured value of the displacement meter 5, the amount of deformation of the test piece TP can be accurately measured regardless of this.
(ヘ) 効 果
以上説明したように、この発明は、実際に試験
に使用するオートクレーブの高温高圧条件下で変
位計を校正することができる。したがつて、試験
片を材料試験するとき、正確に試験片の変形量を
測定することができ、所期の目的を達成すること
ができる。(F) Effects As explained above, the present invention can calibrate a displacement meter under the high temperature and high pressure conditions of an autoclave actually used for testing. Therefore, when performing a material test on a test piece, the amount of deformation of the test piece can be accurately measured, and the intended purpose can be achieved.
第１図はこの発明の一実施例を示す斜視図、第
２図は第１図の各ブロツクの関係を示す断面図、
第３図は第１図の変位計の校正を示す説明図であ
る。
１……オートクレーブ、２……負荷ロツド、３
……固定ロツド、５……変位計、６，７……ブロ
ツク、８，９……変位計のスタンド。
FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view showing the relationship between the blocks in FIG. 1,
FIG. 3 is an explanatory diagram showing the calibration of the displacement meter shown in FIG. 1. 1...Autoclave, 2...Load rod, 3
...Fixed rod, 5...Displacement meter, 6,7...Block, 8,9...Displacement meter stand.
Claims (1)
ツドと固定ロツドに連結し、変位計の一対のスタ
ンドを前記試験片に固定し、前記負荷ロツドを軸
方向に変位させ、前記試験片に荷重を加えるとと
もに、前記変位計によつて前記試験片の変位量を
測定し、前記オートクレーブ内の高温高圧条件下
で前記試験片を材料試験するようにした材料試験
機に使用する装置であつて、 前記変位計の校正にあたつて、前記試験片に代
えて前記オートクレーブ内に収容し、前記負荷ロ
ツドの軸方向に対向させ、前記負荷ロツドと前記
固定ロツドに取り付けることができる一対のブロ
ツクと、 前記変位計の各スタンドを前記負荷ロツドと前
記固定ロツドに取り付けた前記各ブロツクに固定
するための手段とからなり、 前記負荷ロツドを軸方向に変位させ、前記変位
計とは別の検出器によつて前記負荷ロツドの変位
量を測定し、前記検出器の測定値と前記変位計の
測定値を照合し、前記オートクレーブの高温高圧
条件下で前記変位計を校正するようにしたことを
特徴とする変位校正装置。[Scope of Claims] 1. A test piece housed in an autoclave is connected to a load rod and a fixed rod, a pair of stands of a displacement meter are fixed to the test piece, the load rod is displaced in the axial direction, and the test piece is A device used in a material testing machine that applies a load to a piece, measures the amount of displacement of the test piece with the displacement meter, and performs a material test on the test piece under high temperature and high pressure conditions in the autoclave. When calibrating the displacement meter, a pair of rods, which can be housed in the autoclave in place of the test piece, be placed opposite to each other in the axial direction of the load rod, and can be attached to the load rod and the fixed rod, are provided. a block, and means for fixing each stand of the displacement gauge to each of the blocks attached to the load rod and the fixing rod, for displacing the load rod in the axial direction, The amount of displacement of the load rod is measured by a detector, the measured value of the detector is compared with the measured value of the displacement meter, and the displacement meter is calibrated under the high temperature and high pressure conditions of the autoclave. A displacement calibration device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13907983A JPS6029607A (en) | 1983-07-27 | 1983-07-27 | Displacement meter calibrating device of high temperature high pressure material testiing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13907983A JPS6029607A (en) | 1983-07-27 | 1983-07-27 | Displacement meter calibrating device of high temperature high pressure material testiing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6029607A JPS6029607A (en) | 1985-02-15 |
| JPH0454882B2 true JPH0454882B2 (en) | 1992-09-01 |
Family
ID=15236991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13907983A Granted JPS6029607A (en) | 1983-07-27 | 1983-07-27 | Displacement meter calibrating device of high temperature high pressure material testiing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393177A (en) * | 2011-09-06 | 2012-03-28 | 三一重工股份有限公司 | Pasting device for foil gauge |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2792412B1 (en) * | 1999-04-14 | 2001-09-21 | Framatome Sa | DEVICE AND METHOD FOR MECHANICAL TESTING ON A TEST LAYER INSIDE AN AUTOCLAVE ENCLOSURE |
| CN102393334A (en) * | 2010-06-21 | 2012-03-28 | 宁波市产品质量监督检验研究院 | Thermal deformation detector |
| CN109373812B (en) * | 2018-12-04 | 2024-03-12 | 内蒙动力机械研究所 | Transmitting cylinder shock pad displacement measuring device |
| CN112179265B (en) * | 2020-09-25 | 2021-08-10 | 大连理工大学 | Device and method for calibrating static performance of high-temperature strain sensor |
| CN114252362B (en) * | 2021-12-02 | 2024-03-19 | 北京建筑大学 | Double-shaft loading fretting wear testing machine |
-
1983
- 1983-07-27 JP JP13907983A patent/JPS6029607A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393177A (en) * | 2011-09-06 | 2012-03-28 | 三一重工股份有限公司 | Pasting device for foil gauge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6029607A (en) | 1985-02-15 |
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