JPS64483A - Method for searching reinforcing bar - Google Patents
Method for searching reinforcing barInfo
- Publication number
- JPS64483A JPS64483A JP62154303A JP15430387A JPS64483A JP S64483 A JPS64483 A JP S64483A JP 62154303 A JP62154303 A JP 62154303A JP 15430387 A JP15430387 A JP 15430387A JP S64483 A JPS64483 A JP S64483A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- temp
- changes
- concrete surface
- searching
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: To enable the non-destructive and accurate searching of the conditions of reinforcing bars by energizing the reinforcing bars of a reinforced concrete member and measuring the temp. changes of the concrete surface from the heat generated in the reinforcing bars by an IR radiation thermometer.
CONSTITUTION: The temp. distributions T1, T2... around the reinforcing bars 2 are generated and the temp. changes are induced in the concrete surface when the reinforcing bars 2 of the reinforced concrete member 1 are energized to generate heat. The temp. changes of the concrete surface are measured by the IR radiation thermometer 3 and are subjected to image processing by an image processor 4, by which the spacing l between the reinforcing bars, protection (t), the diameter of the reinforcing bars and the sectional chipping condition of the reinforcing bars are detected. The conditions of the reinforcing bars are thus searched by the simple processing with good accuracy without breaking the member 1.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-154303A JPH01483A (en) | 1987-06-23 | Rebar exploration method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-154303A JPH01483A (en) | 1987-06-23 | Rebar exploration method |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS64483A true JPS64483A (en) | 1989-01-05 |
JPH01483A JPH01483A (en) | 1989-01-05 |
JPH0441954B2 JPH0441954B2 (en) | 1992-07-09 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4485172A (en) * | 1981-01-19 | 1984-11-27 | Cpc International Inc. | Multistage process for the preparation of fats and oils |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4485172A (en) * | 1981-01-19 | 1984-11-27 | Cpc International Inc. | Multistage process for the preparation of fats and oils |
Also Published As
Publication number | Publication date |
---|---|
JPH0441954B2 (en) | 1992-07-09 |
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