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US 12,693,250 B2Granted
Oil state detection apparatus
AssigneeNippon Pillar Packing Co., Ltd.
InventorsAkira Nakatsu, Kento Nakagawa, Kentaro Watanabe
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Abstract
An oil state detection apparatus detects the amount of degradation substances contained in oil. The oil state detection apparatus includes a first oscillation circuit including a coil 1 and a capacitor 2, and a first detection device. Either one of the coil 1 or the capacitor 2 is configured to be immersed in oil. The first detection device is configured to detect the oscillatory frequency of the oscillation circuit.
Claims12
An oil state detection apparatus, comprising:
- a first oscillation circuit including a first coil and a first capacitor, and
- a first detection device,
- the first coil being configured to be immersed in oil, the first capacitor being configured not to be immersed in the oil,
- the first detection device being configured to detect an oscillatory frequency of the first oscillation circuit and to detect an amount of magnetic substances contained in the oil based on the oscillatory frequency,
- the oil state detection apparatus including only the first oscillation circuit as an oscillation circuit for detecting the amount of the magnetic substances.
2 more elements
Dependencies are inferred from the claim text.