Title:
METHOD AND DEVICE FOR MEASURING THE THREE-DIMENSIONAL VIBRATION OF A HEAVY ELECTRICAL APPARATUS USING A LASER
Document Type and Number:
WIPO Patent Application WO/2012/161362
Kind Code:
A1
Abstract:
The present invention relates to a method and device for measuring the three-dimensional vibration of a heavy electrical apparatus that using laser. The method and device involve measuring the vibration of the heavy electrical apparatus to avoid the service life of same being shortened due to vibration. The apparatus comprises: a transmission unit for emitting a laser; an optical unit for guiding the laser emitted from said transmission unit to a reflective mirror attached to a measurement target and guiding the laser reflected from said reflective mirror into a reception unit; the reception unit for receiving the laser reflected from said reflective mirror and transmitting the light-reception position and frequency information of said received laser; a processing unit for calculating the displacement in all directions of said measurement target on the basis of the light-reception position transmitted from said reception unit, dividing said displacement in all directions by a time function to calculate an amplitude and speed in all directions due to vibration, calculating a prior or subsequent displacement of said measurement target according to the Doppler effect on the basis of the frequency information, and calculating the amplitude and speed of a prior or subsequent direction due to vibration, which are obtained by dividing the displacement of said prior or subsequent direction by a time function in order to output the amplitude and speed to an output unit; and an output unit for converting signal-processed data into data which are easily analyzed and outputted in order to be used for a status diagnosis of the heavy electrical apparatus, and storing a 3-axes displacement of the measurement target transmitted from the processing unit.
Inventors:
SONG KIL MOK (KR)
Application Number:
PCT/KR2011/003848
Publication Date:
November 29, 2012
Filing Date:
May 26, 2011
Export Citation:
Assignee:
KOREA ELECTRICAL SAFETY CORP (KR)
SONG KIL MOK (KR)
KIM CHONG MIN (KR)
SONG KIL MOK (KR)
KIM CHONG MIN (KR)
International Classes:
G01H1/00; G01H17/00; H01S3/02
Foreign References:
| KR20080053558A | 2008-06-16 | |||
| KR20100133409A | 2010-12-21 | |||
| KR19990051522A | 1999-07-05 | |||
| JP2010002248A | 2010-01-07 |
Attorney, Agent or Firm:
LIM, Yeong Sup (KR)
임영섭 (KR)
임영섭 (KR)
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Claims: