JPS5559368A - Detecting method for buried metal pipe - Google Patents
Detecting method for buried metal pipeInfo
- Publication number
- JPS5559368A JPS5559368A JP13357778A JP13357778A JPS5559368A JP S5559368 A JPS5559368 A JP S5559368A JP 13357778 A JP13357778 A JP 13357778A JP 13357778 A JP13357778 A JP 13357778A JP S5559368 A JPS5559368 A JP S5559368A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- buried metal
- metal pipe
- depth
- detected
- 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
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: To secure an easy and assured detection for the position and the depth of the buried metal pipe by detecting on the ground the magnetic field which is caused by flowing the AC current to the buried metal pipe through the two exposed areas.
CONSTITUTION: A connection is given via clips 7A and 7B between the two areas of rising pipes 4A, 4B and others which are connected to branch pipes 3A, 3B and others of buried metal pipe 2 such as the water pipe or the like connected via O-ring 12 of the insulating material in order to prevent the corrosion. And then the AC current is applied to pipe 2 to produce the magnetic filed. This magnetic field is detected by receiver 14 with the coil mounted and through the maximum and minimum sensitivity methods to know the position of pipe 2. Furthermore, the depth of pipe 2 can be detected through the 45°-method. Thus both the position and the depth of the buried metal pipe can be detected on the ground in an easy and assured way.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13357778A JPS5559368A (en) | 1978-10-30 | 1978-10-30 | Detecting method for buried metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13357778A JPS5559368A (en) | 1978-10-30 | 1978-10-30 | Detecting method for buried metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5559368A true JPS5559368A (en) | 1980-05-02 |
Family
ID=15108056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13357778A Pending JPS5559368A (en) | 1978-10-30 | 1978-10-30 | Detecting method for buried metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5559368A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015575A (en) * | 1973-06-08 | 1975-02-19 | ||
| JPS5141548A (en) * | 1974-10-04 | 1976-04-07 | Osaka Gas Co Ltd |
-
1978
- 1978-10-30 JP JP13357778A patent/JPS5559368A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015575A (en) * | 1973-06-08 | 1975-02-19 | ||
| JPS5141548A (en) * | 1974-10-04 | 1976-04-07 | Osaka Gas Co Ltd |
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