Vibration source probe system
First Claim
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1. A vibration source probe system comprising:
- vibration detection means for detecting continuous vibrations or surface waves from a vibration source to provide output signals, said vibration detection means having at least three vibration sensors arranged on the same plane to form at least two pairs of vibration sensors arranged on two crossing straight lines; and
vibration source estimation means for analyzing frequencies of the output signals from the at least two pairs of vibration sensors to determine phase differences for the at least two pairs of vibration sensors at a predetermined frequency and determined arrival time differences from the phase differences at the predetermined frequency and estimating a location of the vibration source based on a ratio of the phase differences or arrival time differences.
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Abstract
A vibration source probe system for detecting the surface waves of vibration coming over the ground or the floor of a building and specifying and displaying a vibration source at a factory or on a road.
The position of a vibration source is estimated from a phase difference or arrival time difference between vibrations of surface waves detected by the vibration sensors which are separated from each other by a predetermined distance, an image near the estimated position of the vibration source is picked up by a camera, and the estimated position of the vibration source is displayed on the image displayed on the display screen of a personal computer.
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10 Claims
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1. A vibration source probe system comprising:
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vibration detection means for detecting continuous vibrations or surface waves from a vibration source to provide output signals, said vibration detection means having at least three vibration sensors arranged on the same plane to form at least two pairs of vibration sensors arranged on two crossing straight lines; and vibration source estimation means for analyzing frequencies of the output signals from the at least two pairs of vibration sensors to determine phase differences for the at least two pairs of vibration sensors at a predetermined frequency and determined arrival time differences from the phase differences at the predetermined frequency and estimating a location of the vibration source based on a ratio of the phase differences or arrival time differences. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification