JPH0532556B2 - - Google Patents
Info
- Publication number
- JPH0532556B2 JPH0532556B2 JP17388086A JP17388086A JPH0532556B2 JP H0532556 B2 JPH0532556 B2 JP H0532556B2 JP 17388086 A JP17388086 A JP 17388086A JP 17388086 A JP17388086 A JP 17388086A JP H0532556 B2 JPH0532556 B2 JP H0532556B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- excavator
- conducting wire
- loop
- current
- 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
- 239000004020 conductor Substances 0.000 claims description 17
- 238000009412 basement excavation Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 9
- 230000004907 flux Effects 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17388086A JPS6330701A (ja) | 1986-07-25 | 1986-07-25 | 掘進機の位置検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17388086A JPS6330701A (ja) | 1986-07-25 | 1986-07-25 | 掘進機の位置検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6330701A JPS6330701A (ja) | 1988-02-09 |
| JPH0532556B2 true JPH0532556B2 (enrdf_load_stackoverflow) | 1993-05-17 |
Family
ID=15968829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17388086A Granted JPS6330701A (ja) | 1986-07-25 | 1986-07-25 | 掘進機の位置検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330701A (enrdf_load_stackoverflow) |
-
1986
- 1986-07-25 JP JP17388086A patent/JPS6330701A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6330701A (ja) | 1988-02-09 |
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