发明名称 |
Oil-degradation detecting apparatus |
摘要 |
An oil-degradation detecting apparatus that can more accurately judge oil degradation and a mechanical system having a rotating part or a sliding part and including the oil-degradation detecting apparatus are provided. Two plates (21, 22) are disposed in an oil flow path (11) so as to be parallel to each other, an ammeter (24) measures a current that flows when an AC voltage is applied between the two plates (21, 22), a voltmeter measures the voltage between the plates (21, 22), and a signal processor (processor) (31) determines the electrical conductivity and the dielectric constant of the oil (10) based on the measurement results from the ammeter (24) and the voltmeter (25) and judges degradation of the oil (10) based on the electrical conductivity and the dielectric constant. |
申请公布号 |
US8421486(B2) |
申请公布日期 |
2013.04.16 |
申请号 |
US20080522529 |
申请日期 |
2008.06.18 |
申请人 |
AKIYAMA YO;YANO AKIHIKO;KAGA JUNICHI;DEGUCHI YOSHIHIRO;YAMAURA TAKETOSHI;MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
AKIYAMA YO;YANO AKIHIKO;KAGA JUNICHI;DEGUCHI YOSHIHIRO;YAMAURA TAKETOSHI |
分类号 |
G01R27/08;G01N11/00;G01R27/26 |
主分类号 |
G01R27/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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