Comparison of four wear debris monitoring methods.
|Optical||5 μm in channel of 1.2 mm × 1.6 mm||High sensitivity||Affected by bubble and oil transparency, low throughput|
|Inductive||100 μm in channel of 12 mm diameter||High throughput, insensitive to oil quality, suitable for metal pipe||Only effective for ferromagnetic particles, low sensitivity|
|Resistive-capacitive||10 μm in channel of 40 μm × 100 μm||Simple structure, high sensitivity||Affected by water and oil transparency, causes oil deterioration|
|Acoustic||75 μm in channel of 6.5 mm × 6.5 mm||Distinguishes bubble and solid debris||Affected by oil viscosity, flow speed, and mechanical vibration|
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