JPS61108917A - Production of moire grating - Google Patents
Production of moire gratingInfo
- Publication number
- JPS61108917A JPS61108917A JP23102484A JP23102484A JPS61108917A JP S61108917 A JPS61108917 A JP S61108917A JP 23102484 A JP23102484 A JP 23102484A JP 23102484 A JP23102484 A JP 23102484A JP S61108917 A JPS61108917 A JP S61108917A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- grating
- insulating material
- test piece
- moire
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は材料の応力や変位を計測する際に用いるモアレ
格子製作法の改良に係る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an improvement in a method for manufacturing a moiré grid used in measuring stress and displacement of a material.
第３図は、高温モアレ用試験片の１例を示す平面図であ
る。FIG. 3 is a plan view showing an example of a test piece for high temperature moiré.
平板１の中央に円孔２を設けた後、平板１の表面を研摩
し、感光液４を塗布後、格子真空焼付及び電解研摩の手
順で５００本／１ｎｃｈ程度の高温モアレ耐熱格子全装
作する。After making a circular hole 2 in the center of the flat plate 1, polishing the surface of the flat plate 1, and applying a photosensitive liquid 4, complete assembly of high-temperature moiré heat-resistant gratings of approximately 500 pieces/1 nch is performed by vacuum baking and electrolytic polishing of the gratings. do.
この試験片１に引張荷重全負荷し、試験片１表面のひず
みを高温モアレ法あるいは格子法で計測するが、試験片
１の円孔近傍７および平板側部３耐熱格子の出来、不出
来がひずみ計測精度に大きく影響する。A full tensile load is applied to this test piece 1, and the strain on the surface of the test piece 1 is measured using the high-temperature moiré method or the grid method. This greatly affects strain measurement accuracy.
耐熱格子の出来、不出来は、均一な感光液４の塗布が可
能かどうかにかかっている。The success or failure of the heat-resistant grid depends on whether uniform application of the photosensitive liquid 4 is possible.
第２図は、従来の耐熱格子製作法による第１図のＩＩ−
ＩＩ線矢視横断面図である。平板１の円孔近傍７および
平板側部３は、研摩による「ダレ」と感光液４の「表面
張力」により、平板１上で感光液４は、第２図に図示す
る如く平板１の端部で厚くなシ、平板１上に均一な感光
液４の塗布ができなかった。Figure 2 shows the II-
It is a cross-sectional view taken along the line II. The vicinity of the circular hole 7 of the flat plate 1 and the side part 3 of the flat plate are caused by "sagging" due to polishing and the "surface tension" of the photosensitive liquid 4, so that the photosensitive liquid 4 on the flat plate 1 is caused by the edge of the flat plate 1 as shown in FIG. Since the photosensitive liquid 4 was thick in some areas, it was not possible to uniformly apply the photosensitive liquid 4 on the flat plate 1.
従って、平板１の円孔近傍７および平板側部３には、良
好な耐熱格子が製作できず、ひずみ計測精度向上が望め
ないなどの欠点があった。Therefore, a good heat-resistant grating cannot be manufactured in the vicinity of the circular hole 7 of the flat plate 1 and the side part 3 of the flat plate, and there is a drawback that it is impossible to expect an improvement in strain measurement accuracy.
そこで本発明者らは先に特願昭５９−６６２８４号で被
供試片の切欠部や周辺側端部に上記被供試片のモアレ格
子製作面と同一平面になる如く調整した中子等を固着し
てモアレ格子を製作する方法を提案した。しかしその発
明でも中子及び治具は、試験片と同質材料を用いていた
ので。Therefore, the present inventors previously proposed in Japanese Patent Application No. 59-66284 that a core, etc., was prepared in the notch and peripheral end of the test piece so that it was flush with the moiré grid production surface of the test piece. We proposed a method to fabricate a moiré grid by fixing. However, even in that invention, the core and jig used the same material as the test piece.
試験片と同様に電解研摩され、大電流が流れ。Like the test piece, it is electrolytically polished and a large current is passed through it.
研摩時間が長くかかる等の欠点があった。There were drawbacks such as a long polishing time.
本発明は、上記欠点を解消できるモアレ格子製作法を提
供することを目的としたものである。An object of the present invention is to provide a method for manufacturing a moire grid that can eliminate the above-mentioned drawbacks.
すなわち１本発明はモアレ格子を被供試片に製作するに
際し、予めモアレ格子を製作する上記被供試片の切欠部
や周辺側端部に上記被供試片のモアレ製作面と同一平面
になる如く調整したエポキシ樹脂等の絶縁材を固着して
、耐熱格子製作時間を短縮するモアレ格子の製作法であ
る。In other words, 1. when fabricating a moire grid on a test piece, the present invention provides a method in which the moire grid is made in the notch or the peripheral edge of the test piece so as to be in the same plane as the moire production surface of the test piece. This is a method of manufacturing a moiré grid that shortens the time required to produce a heat-resistant grid by fixing an appropriately adjusted insulating material such as epoxy resin.
従って本発明法では、被供試片の研摩時に被供試片の切
欠部や周辺側端縁がダしたり、感光液の塗布時に表面張
力で感光液が盛り上がったりすることがないので、モア
レ格子の厚さが均一化され、ひずみ計測精度が向上でき
、かつ。Therefore, in the method of the present invention, the notch and peripheral edges of the specimen are not dented when the specimen is polished, and the photosensitive liquid does not bulge due to surface tension when the photosensitive liquid is applied, so moiré is avoided. The thickness of the grating is made uniform, which improves strain measurement accuracy.
短時間に耐熱格子が製作できる。Heat-resistant grids can be produced in a short time.
本発明は、高温モアレ耐熱格子のみならず。The present invention is applicable not only to high-temperature moiré heat-resistant gratings.
常温用のモアレ格子の製作時にも適用できる。It can also be applied when producing moiré grids for room temperature use.
以下１本発明を図面を参照して説明する。 The present invention will be explained below with reference to the drawings.
４１．４図はそれぞれ本発明に係るｌ実施例を示す平面
図と横断面図である。平板１１の中央部の円孔１２の中
にエポキシ樹脂等の絶縁材１４ａを注入し、固着する。Figures 41.4 and 41.4 are a plan view and a cross-sectional view, respectively, showing an embodiment of the present invention. An insulating material 14a such as epoxy resin is injected into the circular hole 12 in the center of the flat plate 11 and fixed.
また、平板１１と平板状の治具１６の間に、エポキシ樹
脂１４ｂ”ｋ受入し、固着する。なお、平板１１と絶縁
材１４ａ。Furthermore, the epoxy resin 14b''k is received and fixed between the flat plate 11 and the flat jig 16. The flat plate 11 and the insulating material 14a.
１４ｂ及び治具１６の表面は、同一平面内にあるような
固定法となっている、次に第１図に図示の平板１１に、
絶縁材１４ａ、１４ｂ 及び治具１６を取付けた状態
で、従来と同−平頭で耐熱格子を製作する。14b and the surfaces of the jig 16 are fixed in the same plane.Next, on the flat plate 11 shown in FIG.
With the insulating materials 14a, 14b and the jig 16 attached, a heat-resistant grid is manufactured with the same flat head as the conventional one.
第４図は、第１図のＩＶ−ＩＶ線矢視横断面図である。4 is a cross-sectional view taken along the line IV-IV in FIG. 1. FIG.
平板１１は絶縁材１４ａ、 １４ｂ ｋ用い、治具１６
と固定された状態となっている。研摩によシ、埋材とし
ての治具１６の端部には「ダレ」が生じるものの、絶縁
材１４ａ及び治具１６の存在により２円孔近傍１７およ
び平板側部１３の縁には「ダレ」及び感光液４の塗布時
にも感光液４による「表面張力」も生じない。従って。The flat plate 11 uses insulating materials 14a and 14b, and a jig 16
It is in a fixed state. Although "sagging" occurs at the end of the jig 16 as a filling material due to polishing, "sagging" occurs near the double circular hole 17 and on the edge of the flat plate side part 13 due to the presence of the insulating material 14a and the jig 16. ” and “surface tension” due to the photosensitive liquid 4 is not generated when the photosensitive liquid 4 is applied. Therefore.
平板１１の表面には均一な感光液４の塗布が可能となり
、平板１１の円孔近傍１７及び平板側部１３の縁におい
ても、良好な耐熱格子製作を短時間で可能とすることが
できる。The photosensitive liquid 4 can be uniformly applied to the surface of the flat plate 11, and a good heat-resistant grid can be manufactured in a short time even near the circular hole 17 of the flat plate 11 and at the edge of the flat plate side part 13.
なお、平板１１及び治具１６は温度を上げて絶縁材１４
ａ、 １４ｂ ｔ−融かすことにより簡単に除去できる
。Note that the flat plate 11 and the jig 16 are heated to an insulating material 14.
a, 14b t-Easily removed by melting.
第５図と第６図及び第７図と第８図は１本発明を前記実
施例とは形状が異なる平板に適用した他実施例を示す図
である。第５図は平板２１の外側に、エポキシ樹脂等の
絶縁材２５を用い。FIGS. 5, 6, 7, and 8 are views showing other embodiments in which the present invention is applied to a flat plate having a shape different from that of the previous embodiment. In FIG. 5, an insulating material 25 such as epoxy resin is used on the outside of the flat plate 21.
埋材としての平板状の治具２６を固定する。平板２１と
治具２６の表面は、同一平面上にあるように、取付けた
状態で前記実施例と同一手順で耐熱格子を製作する。A flat plate-shaped jig 26 as a filling material is fixed. A heat-resistant grid is manufactured in the same manner as in the previous embodiment with the flat plate 21 and the jig 26 attached so that their surfaces are on the same plane.
第６図は、第５図のＩＶ−ＩＶ線矢視横断面図である。6 is a cross-sectional view taken along the line IV-IV in FIG. 5. FIG.
平板２１は絶縁材２５を用いて、治具２６と固定された
状態となっている。研摩により治具２６の端部には「ダ
レ」が生じるものの、治具２６の存在により、切欠部２
２の縁には。The flat plate 21 is fixed to a jig 26 using an insulating material 25. Although "sagging" occurs at the end of the jig 26 due to polishing, the presence of the jig 26 allows the notch 2
On the edge of 2.
「ダレ」のみならず感光液４の塗布による表面張力も生
じない。従って、平板２１の表面には均一な感光液４の
塗布が可能となり、切欠部２２の縁においても良好な耐
熱格子製作を短時間で可能とすることができた。Not only "sagging" but also surface tension due to the application of the photosensitive liquid 4 does not occur. Therefore, it became possible to uniformly apply the photosensitive liquid 4 to the surface of the flat plate 21, and it was also possible to manufacture a good heat-resistant grating at the edges of the notches 22 in a short time.
第８図は第７図の■−■線矢視横断面図である。FIG. 8 is a cross-sectional view taken along the line ■--■ in FIG. 7.
第７図及び第８図の符号は、第３図及び第４図の符号と
同一であシ、切欠部２２を複数個設けた点が前記第１実
施例と異なるのみで１作用。The reference numerals in FIGS. 7 and 8 are the same as those in FIGS. 3 and 4, and the only difference from the first embodiment is that a plurality of notches 22 are provided.
効果とも同じであるので説明を省略する。Since the effect is the same, the explanation will be omitted.
上記の如く本発明のモアレ耐熱格子製作法ヲ適用するこ
とによシ、ひずみ計測精度を向上できるモアレ耐熱格子
の製作が短時間で可能となった。As described above, by applying the method of manufacturing a moire heat-resistant grating of the present invention, it has become possible to manufacture a moire heat-resistant grating that can improve strain measurement accuracy in a short time.
第３図は、高温モアレ用試験片の平面図、第２図は従来
法による場合の第１図のｌｌ−ｆｆ線矢視断面図、第１
図、第５図及び第７図はそれぞれ本発明法の実施例によ
って製作した高温モアレ用試験片の平面図、第４図、第
６図、第８図はそれぞれ第１図及び第５図及び第７図の
■−■線、ＶＩ−Ｖｌ線及び■−■線矢視断面図である
。
ＸＩＺ
ヤ２図
一￥３葛
ケ４図
ヤ５図
タロ図Figure 3 is a plan view of a test piece for high-temperature moiré, Figure 2 is a sectional view taken along the line ll-ff in Figure 1 when using the conventional method, and
Figures 5 and 7 are plan views of high-temperature moiré test pieces produced by the embodiment of the method of the present invention, respectively, and Figures 4, 6, and 8 are Figures 1, 5, and 7, respectively. FIG. 7 is a cross-sectional view taken along the line ■-■, VI-Vl, and ■-■ in FIG. 7; XIZ Ya 2 Figure 1 ¥ 3 Kuzuka 4 Figure Ya 5 Taro diagram
Claims (1)
子を製作する上記被供試片の切欠部や周辺側端部に上記
被供試片のモアレ格子製作面と同一平面になる如く調整
した絶縁材を固着して耐熱格子製作時間を短縮すること
を特徴とするモアレ格子製作法。When fabricating a moire lattice on a specimen, the notch and peripheral edge of the specimen on which the moire lattice is to be manufactured are adjusted in advance so that they are flush with the moire lattice fabrication surface of the specimen. A moiré grid production method characterized by shortening the production time of heat-resistant grids by fixing an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23102484A JPS61108917A (en) | 1984-11-01 | 1984-11-01 | Production of moire grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23102484A JPS61108917A (en) | 1984-11-01 | 1984-11-01 | Production of moire grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61108917A true JPS61108917A (en) | 1986-05-27 |
Family
ID=16917065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23102484A Pending JPS61108917A (en) | 1984-11-01 | 1984-11-01 | Production of moire grating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61108917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2603379A1 (en) * | 1986-08-26 | 1988-03-04 | Tissier Annie | METHOD FOR MEASURING THE CREEP OF A MATERIAL AND APPARATUS FOR IMPLEMENTING SAME |
-
1984
- 1984-11-01 JP JP23102484A patent/JPS61108917A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2603379A1 (en) * | 1986-08-26 | 1988-03-04 | Tissier Annie | METHOD FOR MEASURING THE CREEP OF A MATERIAL AND APPARATUS FOR IMPLEMENTING SAME |
| US4813781A (en) * | 1986-08-26 | 1989-03-21 | Annie Tissier | Method of measuring the flowing of a material |
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