Open Access

Table 1

Comparison of four wear debris monitoring methods.

Method Detection accuracy Advantages Disadvantages
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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