JP2017223633A5 - - Google Patents
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- JP2017223633A5 JP2017223633A5 JP2016121265A JP2016121265A JP2017223633A5 JP 2017223633 A5 JP2017223633 A5 JP 2017223633A5 JP 2016121265 A JP2016121265 A JP 2016121265A JP 2016121265 A JP2016121265 A JP 2016121265A JP 2017223633 A5 JP2017223633 A5 JP 2017223633A5
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- JP
- Japan
- Prior art keywords
- eddy current
- magnetic sensor
- reinforcing bar
- concrete panel
- type magnetic
- 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.)
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- 230000003014 reinforcing Effects 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 210000003205 Muscles Anatomy 0.000 claims description 3
- 230000003187 abdominal Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 1
Description
このように、鉄筋状態測定装置１００は、渦電流式磁気センサ３１ａ、３１ｂの出力変換値χａ、χｂに基づいて渦電流式磁気センサ３１ａ、３１ｂのそれぞれが主筋２の真上に位置しているか否かを判定できる。そのため、測定装置３０がコンクリートパネル１の一端（例えば−Ｙ側端部）から他端（例えば＋Ｙ側端部）に相対移動する間に、渦電流式磁気センサ３１ａ、３１ｂの双方が同時に主筋２の真上に位置していると判定した回数を、コンクリートパネル１の移動方向に沿って埋設されている主筋２の本数として導き出すことができる。図８の例では、鉄筋状態測定装置１００は、測定装置３０が時刻Ｔ１での位置から時刻Ｔ５での位置まで移動する間に、渦電流式磁気センサ３１ａ、３１ｂの双方が同時に主筋２の真上に位置していると判定した回数（２回）を、主筋２の本数（２本）として導き出すことができる。
As described above, the reinforcing bar state measuring apparatus 100 determines whether each of the eddy current type magnetic sensors 31a and 31b is located directly above the main bar 2 based on the output conversion values χa and χb of the eddy current type magnetic sensors 31a and 31b. You can determine whether or not. Therefore, both of the eddy current type magnetic sensors 31a and 31b are simultaneously used as the main reinforcement 2 while the measuring device 30 is relatively moved from one end (for example, −Y side end) of the concrete panel 1 to the other end (for example, + Y side end). The number of times that it is determined that the position is located directly above can be derived as the number of main bars 2 embedded along the moving direction of the concrete panel 1 . In the example of FIG. 8, the reinforcing bar state measuring device 100 has both the eddy current type magnetic sensors 31 a and 31 b at the same time that the main muscle 2 is true while the measuring device 30 moves from the position at time T 1 to the position at time T 5. The number of times determined to be located (2 times) can be derived as the number of main muscles 2 (2).
Claims (8)
渦電流式磁気センサと、
前記コンクリートパネルに対して前記渦電流式磁気センサを相対的に移動させる運動機構と、
前記渦電流式磁気センサの出力を対数変換する対数変換器と、
を備える装置。 A device for measuring the state of a reinforcing bar embedded in a concrete panel,
An eddy current magnetic sensor;
A movement mechanism for moving the eddy current type magnetic sensor relative to the concrete panel;
A logarithmic converter for logarithmically converting the output of the eddy current magnetic sensor;
A device comprising:
前記コンクリートパネルを第１方向に移動させる第１運動機構と、
前記第１方向に垂直な第２方向に前記渦電流式磁気センサを往復動させる第２運動機構と、を備える、
請求項１に記載の装置。 The movement mechanism is
A first motion mechanism for moving the concrete panel in a first direction;
A second motion mechanism that reciprocates the eddy current magnetic sensor in a second direction perpendicular to the first direction,
The apparatus of claim 1.
請求項１又は２に記載の装置。 The eddy current type magnetic sensor is composed of at least two eddy current type magnetic sensors arranged at intervals in the moving direction of the concrete panel.
The apparatus according to claim 1 or 2.
前記コンクリートパネルの腹面から所定の距離のところに渦電流式磁気センサを位置付ける工程と、
前記所定の距離を維持しながら前記コンクリートパネルに対して前記渦電流式磁気センサを相対的に移動させる工程と、
前記渦電流式磁気センサの出力を対数変換して出力変換値を生成する工程と、
前記出力変換値に基づいて前記鉄筋の状態を測定する工程と、
を有する方法。 A method for measuring the state of a reinforcing bar by a device for measuring the state of the reinforcing bar embedded in a concrete panel,
Positioning an eddy current magnetic sensor at a predetermined distance from the abdominal surface of the concrete panel;
Moving the eddy current magnetic sensor relative to the concrete panel while maintaining the predetermined distance;
Logarithmically converting the output of the eddy current magnetic sensor to generate an output conversion value;
Measuring the state of the reinforcing bar based on the output conversion value;
Having a method.
前記コンクリートパネルを第１方向に移動させる工程と、
前記第１方向に垂直な第２方向に前記渦電流式磁気センサを往復動させる工程と、を有する、
請求項４に記載の方法。 The relatively moving step includes:
Moving the concrete panel in a first direction;
Reciprocating the eddy current type magnetic sensor in a second direction perpendicular to the first direction.
The method of claim 4.
請求項４又は５に記載の方法。 In the step of measuring the state of the reinforcing bar, it is determined whether or not the reinforcing bar exists under the eddy current type magnetic sensor and / or the cover thickness of the reinforcing bar is measured.
The method according to claim 4 or 5.
前記鉄筋の状態を測定する工程では、前記少なくとも２つの渦電流式磁気センサの出力を対数変換した出力変換値のそれぞれを加算した値から前記鉄筋の状態を測定する、
請求項４乃至６の何れかに記載の方法。 The eddy current type magnetic sensor is composed of at least two eddy current type magnetic sensors arranged at intervals in the moving direction of the concrete panel,
In the step of measuring the state of the reinforcing bar, the state of the reinforcing bar is measured from a value obtained by adding each of the output conversion values obtained by logarithmically converting the outputs of the at least two eddy current magnetic sensors.
The method according to claim 4.
前記鉄筋の状態を測定する工程では、前記少なくとも２つの渦電流式磁気センサの出力を対数変換した出力変換値のそれぞれが同時に所定の閾値以上となった回数から前記鉄筋のうちの前記コンクリートパネルの移動方向に沿って埋設されている主筋の本数を導き出す、
請求項４乃至６の何れかに記載の方法。 The eddy current type magnetic sensor is composed of at least two eddy current type magnetic sensors arranged at intervals in the moving direction of the concrete panel,
In the step of measuring the state of the reinforcing bar, from the number of times each of the output conversion values obtained by logarithmically converting the outputs of the at least two eddy current type magnetic sensors simultaneously exceeds a predetermined threshold, the concrete panel of the reinforcing bar Deriving the number of main muscles embedded along the direction of movement ,
The method according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016121265A JP6520837B2 (en) | 2016-06-17 | 2016-06-17 | Apparatus and method for measuring the condition of reinforcing bars embedded in a concrete panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016121265A JP6520837B2 (en) | 2016-06-17 | 2016-06-17 | Apparatus and method for measuring the condition of reinforcing bars embedded in a concrete panel |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017223633A JP2017223633A (en) | 2017-12-21 |
| JP2017223633A5 true JP2017223633A5 (en) | 2018-07-05 |
| JP6520837B2 JP6520837B2 (en) | 2019-05-29 |
Family
ID=60688049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016121265A Active JP6520837B2 (en) | 2016-06-17 | 2016-06-17 | Apparatus and method for measuring the condition of reinforcing bars embedded in a concrete panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6520837B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020013321A1 (en) * | 2018-07-13 | 2020-01-16 | 株式会社ブリヂストン | State detection device, state detection system, and state detection method |
| CN109579679B (en) * | 2018-11-13 | 2024-03-05 | 中建安装工程有限公司 | Half grout sleeve reinforcing bar anchor length detection device |
| CN109387141B (en) * | 2018-11-13 | 2024-03-08 | 中建安装工程有限公司 | Full grouting sleeve steel bar anchoring length detection device |
| JP7194379B2 (en) * | 2019-03-28 | 2022-12-22 | 大和ハウス工業株式会社 | Cover dimension measuring tool |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59210305A (en) * | 1983-05-16 | 1984-11-29 | Matsushita Electric Ind Co Ltd | Displacement measuring device |
| JP2651003B2 (en) * | 1989-02-18 | 1997-09-10 | 古河電気工業株式会社 | Eddy current displacement sensor |
| JPH07208906A (en) * | 1994-01-19 | 1995-08-11 | Amada Co Ltd | Amplification circuit of eddy current sensor |
| JPH0861949A (en) * | 1994-08-24 | 1996-03-08 | Speedfam Co Ltd | Surface contour measuring device for surface plate and polishing pad |
| JP5017038B2 (en) * | 2007-09-26 | 2012-09-05 | 株式会社日立製作所 | Eddy current inspection apparatus and eddy current inspection method |
| JP2009216627A (en) * | 2008-03-12 | 2009-09-24 | Sumitomo Metal Mining Siporex Kk | Inspection apparatus and inspection method for reinforcing bar covering depth of alc panel |
| JP5146673B2 (en) * | 2008-08-19 | 2013-02-20 | 住友金属鉱山シポレックス株式会社 | ALC panel main bar cover thickness inspection method |
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2016
- 2016-06-17 JP JP2016121265A patent/JP6520837B2/en active Active
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