Abstract
An online condition monitoring system based
on the measurement of viscosity and density of liquids is presented and applied to three different measuring tasks relevant for industrial and automotive applications. One topic is oil characterization in hydraulic systems. It is shown that by measuring over varying temperature
and pressure, additional physical properties can be made available for online condition monitoring, which are difficult to measure otherwise. These include, for example, the coefficient of thermal expansion and the bulk modulus, which is also related to the proportion of dissolved air. In the second application we investigate the efficiency of a passive oil defoamer and estimate the percentage of free air. Finally, the suitability of the measurement system for the determination of the diesel fraction in the engine oil as caused by the regeneration cycles of the diesel particulate
filter is demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 189-200 |
| Number of pages | 12 |
| Journal | tm - Technisches Messen |
| Volume | 87 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Nov 2019 |
Fields of science
- 202019 High frequency engineering
- 202021 Industrial electronics
- 202036 Sensor systems
- 203017 Micromechanics
- 202 Electrical Engineering, Electronics, Information Engineering
- 202027 Mechatronics
- 202028 Microelectronics
- 202037 Signal processing
JKU Focus areas
- Digital Transformation