JPH0351878B2 - - Google Patents
Info
- Publication number
- JPH0351878B2 JPH0351878B2 JP61099404A JP9940486A JPH0351878B2 JP H0351878 B2 JPH0351878 B2 JP H0351878B2 JP 61099404 A JP61099404 A JP 61099404A JP 9940486 A JP9940486 A JP 9940486A JP H0351878 B2 JPH0351878 B2 JP H0351878B2
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic coil
- magnetic field
- pipe
- data
- measuring device
- 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.)
- Expired - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Near-Field Transmission Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61099404A JPS62258091A (ja) | 1986-05-01 | 1986-05-01 | 掘削機におけるデ−タ伝送装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61099404A JPS62258091A (ja) | 1986-05-01 | 1986-05-01 | 掘削機におけるデ−タ伝送装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62258091A JPS62258091A (ja) | 1987-11-10 |
| JPH0351878B2 true JPH0351878B2 (fr) | 1991-08-08 |
Family
ID=14246550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61099404A Granted JPS62258091A (ja) | 1986-05-01 | 1986-05-01 | 掘削機におけるデ−タ伝送装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62258091A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2873983B2 (ja) * | 1991-11-22 | 1999-03-24 | 株式会社レイディック | 鋼製ロッドによる地中情報収集方式 |
| JPH0788749B2 (ja) * | 1993-03-12 | 1995-09-27 | 石油公団 | ロギング装置 |
-
1986
- 1986-05-01 JP JP61099404A patent/JPS62258091A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62258091A (ja) | 1987-11-10 |
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