Title:
VIBRATION MEASUREMENT DEVICE, VIBRATION MEASUREMENT METHOD, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/255728
Kind Code:
A1
Abstract:
This vibration measurement device (10) measures the vibration of an object comprising a vibration source and a component having an area under measurement. The vibration measurement device (10) comprises a displacement calculation unit (11) for calculating the displacement of the area under measurement in a specific direction on the basis of sequential images of the area under measurement and a vibration measurement unit (12) for setting a plurality of time windows for the sequential variation in the calculated displacement, extracting the sequential variation in each time window, and using the extracted sequential variation to calculate the vibration of the object in the specific direction.
Inventors:
OHTA MASAHIKO (JP)
KOBAYASHI HIROAKI (JP)
MATSUMOTO HIROSHI (JP)
KOBAYASHI HIROAKI (JP)
MATSUMOTO HIROSHI (JP)
Application Number:
PCT/JP2020/022066
Publication Date:
December 24, 2020
Filing Date:
June 04, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01H9/00; G01M99/00
Domestic Patent References:
| WO2019097578A1 | 2019-05-23 |
Foreign References:
| JP2004020429A | 2004-01-22 | |||
| JP2018189578A | 2018-11-29 | |||
| JPH05231361A | 1993-09-07 | |||
| JP2019041517A | 2019-03-14 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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