Title:
DISTORTION ESTIMATION DEVICE, DIAGNOSIS DEVICE, AND DISTORTION ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/212671
Kind Code:
A1
Abstract:
The distortion estimation device pertaining to an aspect of the present invention estimates distortion of a component provided in a fluid, the distortion estimation device being provided with a pressure acquiring unit for acquiring a pressure signal including time-series pressure values at a predetermined position on the periphery of a component, an estimation unit for estimating a distortion signal including time-series distortion values occurring in the component on the basis of the pressure signal, and an output unit for outputting the distortion signal. The estimation unit converts the pressure signal to a distortion signal using an estimation filter determined on the basis of a power spectral density of the pressure and a power spectral density of the distortion occurring in the component when the pressure is applied at the aforementioned position.
Inventors:
HASHIZUME TATSUYA (JP)
Application Number:
PCT/JP2016/089090
Publication Date:
December 14, 2017
Filing Date:
December 28, 2016
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
G01L1/00; G01M13/00
Foreign References:
| JPS62182402A | 1987-08-10 | |||
| CN104049036A | 2014-09-17 | |||
| JP2002162298A | 2002-06-07 | |||
| JP2013079920A | 2013-05-02 | |||
| JP2003097410A | 2003-04-03 | |||
| US20050119568A1 | 2005-06-02 |
Other References:
See also references of EP 3467461A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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