Table 2.
Commercial in-line sensors for lubricant status monitoring.
| Sensor | Manufacturer | Measurement Principle | Information | Price | Size (mm) |
|---|---|---|---|---|---|
| LubCos | ARGO-HYTOS | Dielectric | Oil Condition, Temperature, Humidity | ++ | Ø42 × 147 |
| OilQSens | b2 electronic gmbh | Permittivity Dielectric |
Conductivity, Permittivity, Temperature, Tan Delta, Water, Breakdown Voltage | ++++ | Ø70 × 103 |
| TRIDENT QW3100 | Poseidon Systems | Electrochemical impedance spectroscopy | Additive, contaminants, water | ++ | Ø38 × 121 |
| ANALEXrs Oil condition | Kittiwake | Dielectric constant | Oil Condition (%) | ++ | Ø30 × 130 |
| Oil Condition Sensor | Lubrigard Ltd. | Dielectric loss factor | Oil contamination | ++++ | Ø37 × 76 |
| OQSx | TANDeltaSystems | Tan Delta | Oil Quality (Tan Delta Number) Oil Temperature | ++ | Ø37 × 90 |
| Oil Insyte | Voelker Sensors Inc. | Dielectric Constant | Oxi | ++ | Ø35 × 120 |
| Oil Quality Sensor OQS | STAUFF | Dielectric | Oil Quality | ++++ | Ø37 × 80 |