|
Water in oil decreases lubricity, prevents additives from performing
properly and furthers oxidation. The dielectric constants of water
and hydraulic oil differ by a factor of 40, conductivities by
several orders of magnitude, making it possible to detect even
small traces of water in the oil. The amount of acid present is
usually referred the Total Acid Number which itself is reflected
in the dielectric constant of the oil. Numbers higher than that
of new lubricant is an indication of oxidation or contamination
of some kind.
We developed a sensor for measuring the dielectric constant, temperature
and conductivity as indicators for the quality of a non-polar
liquid, e.g. hydraulic oil. The observed changes can be related
to water uptake, cracking of the oil and other contaminations
caused by aging effects and wear in the system.
Oils from different manufacturers and for different applications
vary significantly when it comes to their chemical nature, and
likewise do the changes of the physical properties measured by
the sensor. However, the possibility of real-time measurement
of the physical quantities themselves provides accurate, reliable
and data for our customer, which are then evaluated by our customer
for his particular application and creating his own database for
further analysis and prediction for preventive maintenance is
greatly simplified.
Our sensor provides the means for you to collect live data for
your application, thus enabling you to make your product superior
to those of your competitors.
|
|
