Title:
STRUCTURE INSPECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2002/018927
Kind Code:
A1
Abstract:
Vibration generated on a surface to be measured is directly converted into voltage, without the intermediary of a medium such as air, by bringing a vibration sensor into a direct contact with the surface to be measured to quantify the vibration generated on the surface, and the internal conditions of a concrete structure are objectively evaluated independently of surrounding noises and the shape of a hammer. A structure inspection device which comprises an exciting device for generating an elastic wave on an object to be measured of a concrete structure, a vibration detector for detecting, by being contacted with the surface of the object to be measured, the components within a specified frequency range of the elastic wave generated on the object surface by the exciting device, and a display for displaying a maximum amplitude of an output signal from the vibration detector.
Inventors:
Shimada, Takashi (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Matsuhashi, Kanji (Matsuhashi Techno Research Co, Ltd. 14-9 Motoujina-ch, Minami-ku Hiroshima-shi Hiroshima, 734-0012, JP)
Matsuhashi, Kanji (Matsuhashi Techno Research Co, Ltd. 14-9 Motoujina-ch, Minami-ku Hiroshima-shi Hiroshima, 734-0012, JP)
Application Number:
PCT/JP2000/005797
Publication Date:
March 07, 2002
Filing Date:
August 28, 2000
Export Citation:
Assignee:
MITSUBISHI DENKI KABUSHIKI KAISHA (2-3 Marunouchi 2-chome Chiyoda-ku, Tokyo, Tokyo, 100-8310, JP)
MATSUHASHI TECHNO RESEARCH CO., LTD. (14-9, Motoujina-cho Minami-ku Hiroshima-shi, Hiroshima, 734-0012, JP)
Shimada, Takashi (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Matsuhashi, Kanji (Matsuhashi Techno Research Co, Ltd. 14-9 Motoujina-ch, Minami-ku Hiroshima-shi Hiroshima, 734-0012, JP)
MATSUHASHI TECHNO RESEARCH CO., LTD. (14-9, Motoujina-cho Minami-ku Hiroshima-shi, Hiroshima, 734-0012, JP)
Shimada, Takashi (Mitsubishi Denki Kabushiki Kaisha 2-3, Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Matsuhashi, Kanji (Matsuhashi Techno Research Co, Ltd. 14-9 Motoujina-ch, Minami-ku Hiroshima-shi Hiroshima, 734-0012, JP)
International Classes:
G01M7/00; G01N3/32; G01N3/40; G01N29/04; G01N29/42; G01N29/46; G01N33/38; G01N3/00; G01N3/02; G01N3/06; (IPC1-7): G01N29/12; G01N3/30
Attorney, Agent or Firm:
Soga, Michiteru (S. Soga & Co. 8th Floor, Kokusai Building 1-1 Marunouchi 3-chome Chiyoda-ku, Tokyo, 100-0005, JP)
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