JPS632154U - - Google Patents
Info
- Publication number
- JPS632154U JPS632154U JP9548586U JP9548586U JPS632154U JP S632154 U JPS632154 U JP S632154U JP 9548586 U JP9548586 U JP 9548586U JP 9548586 U JP9548586 U JP 9548586U JP S632154 U JPS632154 U JP S632154U
- Authority
- JP
- Japan
- Prior art keywords
- specimen
- electrode
- pinhole
- ultra
- coating film
- 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
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図及び第２図は本考案の実施例を示す図、
第３図は電極の極細金属線の配列を示す図、第４
図は従来例を示す図である。
（主な記号）、１…極細金属線、２…電極、４
…検体。
1 and 2 are diagrams showing an embodiment of the present invention,
Figure 3 is a diagram showing the arrangement of the ultra-fine metal wires of the electrode, Figure 4
The figure shows a conventional example. (Main symbols), 1... Ultrafine metal wire, 2... Electrode, 4
...Specimen.
Claims (1)
コーテイングされた検体のコーテイング膜中のピ
ンホールを検出する装置に於いて、極細金属線を
針状に多数植設した電極を設け、当該電極の上記
極細金属線先端に上記検体のコーテイング面が軽
く接触する程度に上記検体を位置せしめ、上記電
極と上記検体との間に電圧を印加して上記電極の
極細金属線先端と上記検体のコーテイング膜中の
ピンホールとの間での放電又は通電によつて上記
ピンホールを検出するようにしたピンホール検出
装置。 In an apparatus for detecting pinholes in the coating film of a specimen made of metal whose surface is coated with a thin film of non-conductive material, an electrode with a large number of ultra-fine metal wires implanted in the shape of needles is installed to detect the pinholes in the coating film. The specimen is positioned such that the coated surface of the specimen lightly contacts the tip of the ultra-fine metal wire of the electrode, and a voltage is applied between the electrode and the specimen to cause the tip of the ultra-fine metal wire of the electrode to touch the specimen. A pinhole detection device configured to detect the pinhole by discharging or energizing between the pinhole and the pinhole in the coating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9548586U JPS632154U (en) | 1986-06-23 | 1986-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9548586U JPS632154U (en) | 1986-06-23 | 1986-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS632154U true JPS632154U (en) | 1988-01-08 |
Family
ID=30960069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9548586U Pending JPS632154U (en) | 1986-06-23 | 1986-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS632154U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124948B1 (en) * | 1971-03-27 | 1976-07-28 | ||
| JPS55162047A (en) * | 1979-06-04 | 1980-12-17 | Kawasaki Steel Corp | Pinhole detecting method for coated steel pipe |
| JPS5759306B2 (en) * | 1978-08-25 | 1982-12-14 | Ulvac Corp |
-
1986
- 1986-06-23 JP JP9548586U patent/JPS632154U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124948B1 (en) * | 1971-03-27 | 1976-07-28 | ||
| JPS5759306B2 (en) * | 1978-08-25 | 1982-12-14 | Ulvac Corp | |
| JPS55162047A (en) * | 1979-06-04 | 1980-12-17 | Kawasaki Steel Corp | Pinhole detecting method for coated steel pipe |
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