Title:
深度測定システム及び深度測定方法
Document Type and Number:
Japanese Patent JP5283144
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To provide a depth measurement system and a depth measurement method by which accuracy of position detection can be improved.SOLUTION: A depth measurement system 1 includes a plurality of casing pipes 6, a reference casing pipe 7 to be reference of the plurality of casing pipes 6, a magnet 10, and a magnetic sensor 5. The plurality of casing pipes 6 are connected with the reference casing pipe 7 in an axial direction. The magnet 10 is provided to the reference casing pipe 7. The magnetic sensor 5 is inserted into a cylindrical hole of the plurality of casing pipes 6 and the reference pipe 7 and detects magnetic force of the magnet 10.
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Inventors:
Hiro Ishii
Yasuhiro Asai
Satoshi Itaba
Akihiko Murase
Arai Eisaku
Yasuhiro Asai
Satoshi Itaba
Akihiko Murase
Arai Eisaku
Application Number:
JP2012130514A
Publication Date:
September 04, 2013
Filing Date:
June 08, 2012
Export Citation:
Assignee:
Earthquake Prediction Research Foundation
National Institute of Advanced Industrial Science and Technology
Sumiko Resource Development Co., Ltd.
Macome Institute Inc.
National Institute of Advanced Industrial Science and Technology
Sumiko Resource Development Co., Ltd.
Macome Institute Inc.
International Classes:
G01V1/00; G01B7/00; G01C15/00
Domestic Patent References:
| JP2005257602A | 2005-09-22 | |||
| JPS6373107A | 1988-04-02 | |||
| JP2005114584A | 2005-04-28 | |||
| JP2003329405A | 2003-11-19 | |||
| JP2011038919A | 2011-02-24 | |||
| JP2004177398A | 2004-06-24 | |||
| JP2005257602A | 2005-09-22 |
Attorney, Agent or Firm:
Shinto International Patent Office