SYSTEM AND METHOD FOR NOISE IMAGING OF TRANSPORTATION MACHINE, AND SYSTEM AND METHOD FOR FLAW LOCATION DISCRIMINATION OF TRANSPORTATION MACHINE

PURPOSE: A noise imaging system of transportation machines, a noise imaging method of transportation machines, a defective position determining system of transportation machines, and a defective position determining method thereof are provided to apply the system and the method to an actual industri...

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Bibliographic Details
Main Authors YOU, WON HEE, JEON, JONG HOON, KIM, YANG HANN, KOH, HYO IN
Format Patent
LanguageEnglish
Korean
Published 16.05.2013
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PURPOSE: A noise imaging system of transportation machines, a noise imaging method of transportation machines, a defective position determining system of transportation machines, and a defective position determining method thereof are provided to apply the system and the method to an actual industrial site by determining defective positions of the transportation machines by removing an influence of a measurement noise. CONSTITUTION: A microphone array(100) is separated from a bottom surface of a transportation machine. The microphone array measures the sound pressure of an impact noise discharged from the transportation machine. A signal processing unit(400) obtains a noise map without a noise. Photoelectric sensors(200a,200b) are installed in a random position of a path for the transportation machine. The photoelectric sensors measure a relative position of the microphone array by measuring a moving speed and a position. A sound-absorbing material is installed on a surface on which the microphone array is installed.
Bibliography:Application Number: KR20110115534