Title:
VALVE STATE DIAGNOSIS SYSTEM AND VALVE STATE DIAGNOSIS METHOD
Document Type and Number:
Japanese Patent JP2015219078
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method which diagnose a state of a valve with high accuracy.SOLUTION: A valve state diagnosis system includes: a signal input acceptance section for accepting input of a signal generated from the inside of a device having a valve; and a valve state diagnosis section for diagnosing the valve by using a uni-modal function for a frequency spectrum of the signal.
Inventors:
TAKASHIMA RYOICHI
KAWAGUCHI YOHEI
TOGAMI MASATO
SHIMADA KAZUHIRO
KAWAGUCHI YOHEI
TOGAMI MASATO
SHIMADA KAZUHIRO
Application Number:
JP2014101913A
Publication Date:
December 07, 2015
Filing Date:
May 16, 2014
Export Citation:
Assignee:
HITACHI HIGH TECH CORP
International Classes:
F02D41/22; G01M13/00; F02D45/00
Domestic Patent References:
| JPS61147369U | 1986-09-11 |
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki
Yuji Toda
Shigemi Iwasaki