STATE DIAGNOSIS METHOD, STATE DIAGNOSIS DEVICE, AND PROGRAM

STATE DIAGNOSIS METHOD, STATE DIAGNOSIS DEVICE, AND PROGRAM

A condition diagnosis method includes: a measurement step of measuring relative dielectric constant of a lubricant by applying a voltage to the lubricant while changing a frequency from an AC power source; a derivation step of deriving parameters indicating electrical properties of the lubricant by...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARUYAMA, Taisuke, IWASE, Shunsuke
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A condition diagnosis method includes: a measurement step of measuring relative dielectric constant of a lubricant by applying a voltage to the lubricant while changing a frequency from an AC power source; a derivation step of deriving parameters indicating electrical properties of the lubricant by applying the relative dielectric constant measured in the measurement step to a theoretical formula; and a diagnosis step of diagnosing a condition of the lubricant using the parameters.