Title:
加振レーダ装置及びデータ解析装置
Document Type and Number:
Japanese Patent JP6817628
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an oscillating radar apparatus and a data analysis apparatus capable of identifying corrosion points of rebar of RC building in a nondestructive and accurate manner without being influenced by external factors such as cracks of concrete.SOLUTION: An exciting coil 103 is brought into contact with a pillar 102 of an RC building, and a rebar inside a column is vibrated at a low frequency. The rebar is irradiated with a radar wave and a reflected wave is received. By analyzing complex component data obtained by orthogonal detection, a peak amplitude and a peak time delay of a Doppler component and a non-modulated component are observed.SELECTED DRAWING: Figure 1
Inventors:
Koji Miwa
Application Number:
JP2017034707A
Publication Date:
January 20, 2021
Filing Date:
February 27, 2017
Export Citation:
Assignee:
Gunma University
International Classes:
G01N22/00; G01N22/02; G01S13/58; G01S13/88
Domestic Patent References:
| JP2006343203A | ||||
| JP2008542759A | ||||
| JP2003529050A | ||||
| JP2006010514A | ||||
| JP2013167524A | ||||
| JP2013210268A | ||||
| JP2014219238A | ||||
| JP56108947A |
Foreign References:
| US20130144554 |
Other References:
三輪 空司ほか2名,励磁コイルを用いた加振ドップラレーダによるコンクリート内振動体の選択的イメージング,コンクリート工学年次論文集(CD-ROM),日本,2016年 6月15日
Attorney, Agent or Firm:
Shinto International Patent Office