JPH02141811U - - Google Patents
Info
- Publication number
- JPH02141811U JPH02141811U JP5153889U JP5153889U JPH02141811U JP H02141811 U JPH02141811 U JP H02141811U JP 5153889 U JP5153889 U JP 5153889U JP 5153889 U JP5153889 U JP 5153889U JP H02141811 U JPH02141811 U JP H02141811U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- light
- pair
- optical system
- mark
- 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
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000005286 illumination Methods 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 1
Description
第１図は本考案に係る光学式伸び計のカメラの
構成を示す構成図、第２図および第３図は第１図
に相当する光学式伸び計のカメラの２変形例を示
す図、第４図は従来例を示す図である。
１：光学式伸び計カメラ、２：照明用光源、３
：結像レンズ、４：光電変換素子、５：光フアイ
バ、６：照明用レンズ、ＭＫ：標線マーク、Ｘｉ
：結像光学系の光軸、Ｘ：照明用光学系の光軸
。
FIG. 1 is a configuration diagram showing the configuration of the camera of the optical extensometer according to the present invention, FIGS. 2 and 3 are diagrams showing two modified examples of the camera of the optical extensometer corresponding to FIG. FIG. 4 is a diagram showing a conventional example. 1: Optical extensometer camera, 2: Light source for illumination, 3
: Imaging lens, 4: Photoelectric conversion element, 5: Optical fiber, 6: Illumination lens, MK: Gauge line mark, Xi
: optical axis of the imaging optical system, X: optical axis of the illumination optical system.
Claims (1)
カメラにより検出して前記測定対象の伸びを計測
する光学式伸び計において、単一の光源と、この
光源の光を２つに分岐してそれぞれ前記一対の光
学式カメラに導く導光手段とを備えるとともに、
前記光学式カメラは、前記導光手段で導かれた光
を前記標線マークに照射する照明用光学系と、受
光面上に前記標線マークの光像が結像する光電変
換素子と、前記標線マークを前記受光面上に結像
させ、少なくとも前記標線マークを含む空間領域
では前記照明用光学系の光軸と同軸化された光軸
を有する結像光学系とを具備することを特徴とす
る光学式伸び計。 An optical extensometer that measures the elongation of the object by detecting a pair of gauge marks on the object with a pair of optical cameras uses a single light source and the light from this light source is split into two. and light guide means for guiding each to the pair of optical cameras,
The optical camera includes: an illumination optical system that irradiates the guide mark with light guided by the light guiding means; a photoelectric conversion element that forms an optical image of the guide mark on a light receiving surface; an imaging optical system configured to form an image of a marked line mark on the light-receiving surface, and having an optical axis coaxial with the optical axis of the illumination optical system at least in a spatial region including the marked line mark; Features an optical extensometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153889U JPH02141811U (en) | 1989-04-28 | 1989-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153889U JPH02141811U (en) | 1989-04-28 | 1989-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02141811U true JPH02141811U (en) | 1990-11-29 |
Family
ID=31571065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5153889U Pending JPH02141811U (en) | 1989-04-28 | 1989-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02141811U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5390981A (en) * | 1977-01-20 | 1978-08-10 | Yokohama Rubber Co Ltd | Tension testing apparatus |
| JPS56107107A (en) * | 1980-01-31 | 1981-08-25 | Toshiba Corp | Measuring device for elongation and difference in elongation of steam turbine |
-
1989
- 1989-04-28 JP JP5153889U patent/JPH02141811U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5390981A (en) * | 1977-01-20 | 1978-08-10 | Yokohama Rubber Co Ltd | Tension testing apparatus |
| JPS56107107A (en) * | 1980-01-31 | 1981-08-25 | Toshiba Corp | Measuring device for elongation and difference in elongation of steam turbine |
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