JPS6474405A - Method for measuring work gap at the time of arc welding - Google Patents
Method for measuring work gap at the time of arc weldingInfo
- Publication number
- JPS6474405A JPS6474405A JP23151187A JP23151187A JPS6474405A JP S6474405 A JPS6474405 A JP S6474405A JP 23151187 A JP23151187 A JP 23151187A JP 23151187 A JP23151187 A JP 23151187A JP S6474405 A JPS6474405 A JP S6474405A
- Authority
- JP
- Japan
- Prior art keywords
- light
- position detecting
- works
- gap
- detecting element
- 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
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To easily measure the gap between works without contacting by projecting a scanning light beam on a couple of works and detecting a sectional shape on the principle of trigonometric survey. CONSTITUTION:A scanning mirror 6 is rotated to scan the light beam 7 linearly between points A and B on the works 1a and 1b in an (x) direction. Light reflected by a half-mirror 8 is incident on a 1st linear light position detecting element 9, light which is transmitted through the half-mirror 8 and projected on the work 1 is diffuse-reflected, and the diffuse-reflected light is converged by a photodetection lens system 10 to form an image on a 2nd linear light position detecting element 11. Signals of (x)-directional displacement detected by the 1st linear light position detecting element 9 and (z)-direction displacement detected by the 2nd linear light position detecting element 11 are inputted to 1st and 2nd displacement computing element to calculate the actual position quantity, a step computing element 14 calculates a step (h), and a gap computing element 15 finds the gap value.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23151187A JPS6474405A (en) | 1987-09-16 | 1987-09-16 | Method for measuring work gap at the time of arc welding |
GB8814270A GB2206690B (en) | 1987-06-30 | 1988-06-16 | Optically scanning displacement sensor |
IT8848128A IT1219969B (en) | 1987-06-30 | 1988-06-27 | OPTICAL SCAN DISPLACEMENT SENSOR, BASED ON TRIANGULATION CALCULATIONS |
US07/212,228 US4864147A (en) | 1987-06-30 | 1988-06-27 | Optically scanning displacement sensor with linearity correction means |
DE3822143A DE3822143A1 (en) | 1987-06-30 | 1988-06-30 | DISPLACEMENT SENSOR WITH OPTICAL SCAN |
GB9107670A GB2243442B (en) | 1987-06-30 | 1991-04-11 | Optically scanning displacement sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23151187A JPS6474405A (en) | 1987-09-16 | 1987-09-16 | Method for measuring work gap at the time of arc welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6474405A true JPS6474405A (en) | 1989-03-20 |
Family
ID=16924635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23151187A Pending JPS6474405A (en) | 1987-06-30 | 1987-09-16 | Method for measuring work gap at the time of arc welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474405A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06288071A (en) * | 1992-08-26 | 1994-10-11 | Kajima Corp | Electromagnetic type floating floor structure |
JP2009066635A (en) * | 2007-09-14 | 2009-04-02 | Hitachi-Ge Nuclear Energy Ltd | Underwater repair system and underwater repair method using the same |
WO2017126218A1 (en) * | 2016-01-20 | 2017-07-27 | 三菱重工業株式会社 | Gap measurement device and gap measurement method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212703A (en) * | 1983-05-19 | 1984-12-01 | Matsushita Electric Ind Co Ltd | Detector for position of spot light |
-
1987
- 1987-09-16 JP JP23151187A patent/JPS6474405A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212703A (en) * | 1983-05-19 | 1984-12-01 | Matsushita Electric Ind Co Ltd | Detector for position of spot light |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06288071A (en) * | 1992-08-26 | 1994-10-11 | Kajima Corp | Electromagnetic type floating floor structure |
JP2009066635A (en) * | 2007-09-14 | 2009-04-02 | Hitachi-Ge Nuclear Energy Ltd | Underwater repair system and underwater repair method using the same |
WO2017126218A1 (en) * | 2016-01-20 | 2017-07-27 | 三菱重工業株式会社 | Gap measurement device and gap measurement method |
JP2017129464A (en) * | 2016-01-20 | 2017-07-27 | 三菱重工業株式会社 | Gap measuring apparatus and gap measuring method |
KR20180074768A (en) * | 2016-01-20 | 2018-07-03 | 미츠비시 쥬고교 가부시키가이샤 | Gap measuring apparatus and gap measuring method |
EP3370035A4 (en) * | 2016-01-20 | 2018-09-05 | Mitsubishi Heavy Industries, Ltd. | Gap measurement device and gap measurement method |
US11054253B2 (en) | 2016-01-20 | 2021-07-06 | Mitsubishi Heavy Industries, Ltd. | Gap measurement device and gap measurement method |
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