Title:
ABNORMALITY DETERMINING DEVICE, ELECTROCONDUCTIVE PARTICLE DETECTION DEVICE, ABNORMALITY DETERMINING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/053683
Kind Code:
A1
Abstract:
This abnormality determining device comprises: an acquisition unit (601) for acquiring an electrical resistance value between electrodes disposed so as to be spaced apart from each other in a non-electroconductive lubricating fluid used to lubricate mechanical operating equipment; an abnormality determining unit (602) for determining an abnormality in the mechanical operating equipment on the basis of the number of times the electrical resistance value acquired by the acquisition unit falls below a threshold; and an output unit (603) for outputting the result of the determining by the abnormality determining unit. The acquisition unit acquires an electrical resistance value between the electrodes that varies depending on electroconductive particles in the lubricating fluid gathered by magnetism.
Inventors:
SAKURAI KAZUHIKO (JP)
HARADA MASAKI (JP)
HARADA MASAKI (JP)
Application Number:
PCT/JP2022/028197
Publication Date:
April 06, 2023
Filing Date:
July 20, 2022
Export Citation:
Assignee:
NABTESCO CORP (JP)
International Classes:
G01N27/00; G01N15/00; G01N27/04
Foreign References:
| JP2007003435A | 2007-01-11 | |||
| JPH03123926U | 1991-12-17 | |||
| JP2020183932A | 2020-11-12 | |||
| US4070660A | 1978-01-24 | |||
| US20080143351A1 | 2008-06-19 | |||
| JP2021157903A | 2021-09-28 | |||
| JP2005331324A | 2005-12-02 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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