Abstract
A study on the associated effect on the performance of permittivity and viscosity sensors used in novel oil condition sensor systems was carried out. Macro- and microemulsions consisting of water in diesel fuel were used. The water content of water-in-oil macro- and microemulsions could be monitored using permittivity sensors, where in case of macroemulsions the Maxwell-Garnett rule can be applied. For microemulsions, the impact of the utilized surfactants and the potentially changed microstructure of the emulsion had to be considered. Microacoustic viscosity measurement results strongly depended on the droplet size in the emulsions. For microemulsions, the measured viscosity correlated well with classical viscosity measurements, while in case of macroemulsions, the sensor measurements depended on the droplet size compared to the decay length of the evanescent acoustic shear wave. This is an abstract of a paper presented at the Technische Akademie Esslingen 14th International Colloquium Tribology (Stuttgart/Ostfildern, Germany 1/13-15/2004).
| Original language | English |
|---|---|
| Title of host publication | 14th International Colloquium Tribology: Tribology and Lubrication Engineering |
| Subtitle of host publication | Technische Akademie Esslingen International Tribology Colloquium Proceedings |
| Pages | 1877 – 1880 |
| Volume | 14 III |
| Publication status | Published - 2004 |
| Externally published | Yes |
Fields of science
- 202 Electrical Engineering, Electronics, Information Engineering