Title:
INTERFERENCE TYPE VIBRATION OBSERVATION DEVICE, VIBRATION OBSERVATION PROGRAM, RECORDING MEDIUM, VIBRATION OBSERVATION METHOD AND VIBRATION OBSERVATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/027422
Kind Code:
A1
Abstract:
This interference type vibration observation device observes vibration of a subject to be observed, for example, a structure such as a bridge or an overpass and visualizes a result of the observation, wherein the vibration spreads two- or three-dimensionally. An interference type vibration observation device (4) is provided with: a transmission means (10) for transmitting a transmission signal toward a subject to be observed (8); a reception means (12) for receiving a reflection wave from the subject to be observed through a plurality of reception antennas (20) to generate a reception signal at each reception antenna; and a signal processing means (14) for obtaining a phase plane of the reflection wave with respect to an antenna plane from a phase difference between the reception signals to identify an arrival direction and reception intensity of the reflection wave, and for calculating a phase variation of the reflection wave from a specific direction thereof to generate an observation signal indicating vibration of the subject to be observed or a specific part thereof. Furthermore, when mounted on a platform (6) having vibration or shaking, the interference type vibration observation device (4) generates an image from observation data indicating the vibration of the subject to be observed, and determines a fixed point from the image to thereby calculate vibration of the platform (6) according to vibration analysis for the fixed point and remove the vibration from the observation data.
Inventors:
NOHMI HITOSHI (JP)
Application Number:
PCT/JP2015/003859
Publication Date:
February 25, 2016
Filing Date:
July 30, 2015
Export Citation:
Assignee:
ALOUETTE TECHNOLOGY INC (JP)
International Classes:
G01H9/00; G01S13/89
Foreign References:
| JP2004184377A | 2004-07-02 | |||
| JP2005283440A | 2005-10-13 | |||
| JPH04331328A | 1992-11-19 |
Other References:
See also references of EP 3184974A4
Attorney, Agent or Firm:
UNEMOTO, Shoichi et al. (JP)
Shoichi Unemoto (JP)
Shoichi Unemoto (JP)
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