Title:
構造物検査装置
Document Type and Number:
Japanese Patent JP3813580
Kind Code:
B2
Abstract:
An internal condition of a concrete structure is objectively evaluated irrespective of surrounding noise or the shape of a hammer, by placing a vibration sensor in direct contact with a measuring surface so as to directly convert a vibration generated on the measuring surface into a corresponding voltage without the intervention of a medium such as air thereby to quantify the vibration generated on the measuring surface concerned. A structure diagnosis apparatus of the present invention includes a vibration unit for generating an elastic wave in a measuring object of a concrete structure, a vibration detector adapted to be placed in contact with a surface of the measuring object for detecting a component in a predetermined frequency range of an elastic vibration generated on the surface of the measuring object by the vibration unit; and a display device for displaying a maximum amplitude of an output signal of the vibration detector.
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Inventors:
Takashi Shimada
Kanji Matsuhashi
Kanji Matsuhashi
Application Number:
JP2002503072A
Publication Date:
August 23, 2006
Filing Date:
August 28, 2000
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Matsubashi Techno Research Co., Ltd.
Matsubashi Techno Research Co., Ltd.
International Classes:
G01N29/12; G01M7/00; G01M7/08; G01N3/32; G01N3/40; G01N29/00; G01N29/04; G01N29/42; G01N29/46; G01N33/38; G01N3/00; G01N3/02; G01N3/06
Domestic Patent References:
| JPH01219555A | 1989-09-01 | |||
| JP2000131290A | 2000-05-12 |
Attorney, Agent or Firm:
Michiteru Soga
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi