JPH0216053U - - Google Patents
Info
- Publication number
- JPH0216053U JPH0216053U JP9392788U JP9392788U JPH0216053U JP H0216053 U JPH0216053 U JP H0216053U JP 9392788 U JP9392788 U JP 9392788U JP 9392788 U JP9392788 U JP 9392788U JP H0216053 U JPH0216053 U JP H0216053U
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- metal structure
- current
- cover
- damage
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000003973 paint Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は、この考案の一実施の構成を示すブロ
ツク図であり、第２図は、第１図のＡ―Ａ線断面
図である。第３ａ図および第３ｂ図は、従来の検
知装置の電気等価回路を示す回路図である。第４
ａ図および第４ｂ図は、第１図に示す本考案の検
知装置の電気等価回路を示す回路図である。第５
図は、第１図に示す本考案の検知装置の、絶縁カ
バー２の外観を示す斜視図である。第６図は、絶
縁カバー２の有無による測定電位を示すグラフで
ある。第７図は、従来の検知装置の一例を示すブ
ロツク図である。
１：センサー、２：絶縁カバー（絶縁カバー）
、３：電位測定用電極（電位測定用電極）、４：
通電用電極（通電用電極）、５：鍔（鍔）、６：
スペーサ（スペーサ）、７：防水ケーブル、８：
電位測定器（検出手段）、９：電源（電源）、１
０：金属材、１１：塗覆装、１２：測定領域内の
損傷部、１２ａ〜１２ｃ：測定領域外の金属露出
部。
FIG. 1 is a block diagram showing the configuration of one embodiment of this invention, and FIG. 2 is a sectional view taken along the line AA in FIG. 1. FIGS. 3a and 3b are circuit diagrams showing electrical equivalent circuits of a conventional detection device. Fourth
FIGS. 4a and 4b are circuit diagrams showing electrical equivalent circuits of the detection device of the present invention shown in FIG. 1. Fifth
1 is a perspective view showing the appearance of an insulating cover 2 of the detection device of the present invention shown in FIG. FIG. 6 is a graph showing the measured potential with and without the insulating cover 2. FIG. 7 is a block diagram showing an example of a conventional detection device. 1: Sensor, 2: Insulation cover (Insulation cover)
, 3: Potential measurement electrode (potential measurement electrode), 4:
Current-carrying electrode (current-carrying electrode), 5: Tsuba (tsuba), 6:
Spacer (spacer), 7: Waterproof cable, 8:
Potential measuring device (detection means), 9: Power supply (power supply), 1
0: Metal material, 11: Coating, 12: Damaged area within the measurement area, 12a to 12c: Exposed metal area outside the measurement area.
Claims (1)
属構造物の塗覆装の損傷位置を液中にて検知する
装置において、 被測定物と一定間隔を保持するスペーサ６を突
設した絶縁カバー２、その内部に設けられた電位
測定用電極３と通電用電極４、通電用電極４と被
測定物の金属材１０との間に信号電流を通じる電
源９、および、電位測定用電極３に接続されその
電位を検出する検出手段８、を備えることを特徴
とする液中金属構造物の塗覆装損傷検知装置。 (2) 絶縁カバー２は、その開口周端に沿つてカ
バーの外方に延びる所定幅の鍔５を有することを
特徴とする実用新案登録請求の範囲第(1)項記載
の液中金属構造物の塗覆装損傷検知装置。[Scope of Claim for Utility Model Registration] (1) In a device for detecting, in liquid, the position of damage to the coating of a coated metal structure installed in liquid, A signal current is transmitted between an insulating cover 2 having a spacer 6 protruding therein to maintain a distance, a potential measuring electrode 3 and a current-carrying electrode 4 provided inside the cover, and a current-carrying electrode 4 and a metal material 10 of the object to be measured. A coating damage detection device for a submerged metal structure, characterized in that it comprises a power supply 9 connected thereto, and a detection means 8 connected to the potential measuring electrode 3 and detecting the potential thereof. (2) The submerged metal structure according to claim (1) of the utility model registration, wherein the insulating cover 2 has a flange 5 having a predetermined width extending outward from the cover along the opening peripheral edge thereof. Equipment for detecting paint damage to objects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9392788U JPH0524049Y2 (en) | 1988-07-15 | 1988-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9392788U JPH0524049Y2 (en) | 1988-07-15 | 1988-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0216053U true JPH0216053U (en) | 1990-02-01 |
| JPH0524049Y2 JPH0524049Y2 (en) | 1993-06-18 |
Family
ID=31318410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9392788U Expired - Lifetime JPH0524049Y2 (en) | 1988-07-15 | 1988-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0524049Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04181117A (en) * | 1990-11-15 | 1992-06-29 | Nippon Boshoku Kogyo Kk | Device for measuring water-depth position and potential of a metal structure under water surface |
| JP2010047811A (en) * | 2008-08-22 | 2010-03-04 | Tokyo Institute Of Technology | Surface current measurement device and surface current measurement method |
| JP2010047814A (en) * | 2008-08-25 | 2010-03-04 | Tokyo Institute Of Technology | Current measurement method and current measurement device for sacrificial anode in electrically conductive liquid |
| JP6230206B1 (en) * | 2017-01-31 | 2017-11-15 | 株式会社シュリンクス | Environmental monitoring method |
-
1988
- 1988-07-15 JP JP9392788U patent/JPH0524049Y2/ja not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04181117A (en) * | 1990-11-15 | 1992-06-29 | Nippon Boshoku Kogyo Kk | Device for measuring water-depth position and potential of a metal structure under water surface |
| JP2010047811A (en) * | 2008-08-22 | 2010-03-04 | Tokyo Institute Of Technology | Surface current measurement device and surface current measurement method |
| JP2010047814A (en) * | 2008-08-25 | 2010-03-04 | Tokyo Institute Of Technology | Current measurement method and current measurement device for sacrificial anode in electrically conductive liquid |
| JP6230206B1 (en) * | 2017-01-31 | 2017-11-15 | 株式会社シュリンクス | Environmental monitoring method |
| JP2018124135A (en) * | 2017-01-31 | 2018-08-09 | 株式会社シュリンクス | Environment monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524049Y2 (en) | 1993-06-18 |
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