JPH0285704A - Gap measuring instrument - Google Patents
Gap measuring instrumentInfo
- Publication number
- JPH0285704A JPH0285704A JP63236486A JP23648688A JPH0285704A JP H0285704 A JPH0285704 A JP H0285704A JP 63236486 A JP63236486 A JP 63236486A JP 23648688 A JP23648688 A JP 23648688A JP H0285704 A JPH0285704 A JP H0285704A
- Authority
- JP
- Japan
- Prior art keywords
- gap
- rails
- controller
- image
- sent
- 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
Abstract
PURPOSE: To measure the width of a gap in an object to be measured from a relatively moving object by providing a gap detecting means, an image pickup means, and an arithmetic means.
CONSTITUTION: A gap detecting means 1 is provided almost right above rails 7 and generates a detect signal which detects a gap between the rails 7. A stroboscope controller 4 causes a stroboscope light source 2, arranged so that the light emitted from the source 2 can irradiate the rails 7, to emit light upon receiving the detect signal. The same detect signal as that sent to the controller 4 is also sent to an image pickup means controller 5 and an image pickup means 3, arranged so that it can be focused on the upper surface of the rails 7, picks up the image of the gap between the rails 7 under the control of the controller 5. The information of the image picked up by the means 3 is sent to an arithmetic means 6 through the controller 5 and the means 6 calculates the width of the gap by performing arithmetic operation on the image information.
COPYRIGHT: (C)1990,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63236486A JPH0285704A (en) | 1988-09-22 | 1988-09-22 | Gap measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63236486A JPH0285704A (en) | 1988-09-22 | 1988-09-22 | Gap measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0285704A true JPH0285704A (en) | 1990-03-27 |
Family
ID=17001444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63236486A Pending JPH0285704A (en) | 1988-09-22 | 1988-09-22 | Gap measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0285704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH044902U (en) * | 1990-04-26 | 1992-01-17 | ||
| JP2017015423A (en) * | 2015-06-29 | 2017-01-19 | 東日本旅客鉄道株式会社 | Roadbed shape measurement device |
| JP2021032618A (en) * | 2019-08-20 | 2021-03-01 | 公益財団法人鉄道総合技術研究所 | Rail joint gap measurement method |
-
1988
- 1988-09-22 JP JP63236486A patent/JPH0285704A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH044902U (en) * | 1990-04-26 | 1992-01-17 | ||
| JP2017015423A (en) * | 2015-06-29 | 2017-01-19 | 東日本旅客鉄道株式会社 | Roadbed shape measurement device |
| JP2021032618A (en) * | 2019-08-20 | 2021-03-01 | 公益財団法人鉄道総合技術研究所 | Rail joint gap measurement method |
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