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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