Fundacion Tekniker

Ana Aranzabe Garcia

Marcello Conte

Roman Nevshupa

Andoni Delgado Castillo

Aitor Arnaiz Irigaray

Fernando Egaña Farizo

Eneko Arrondo Gorritxategi

Jesús Ma Terradillos Azqueta

Amaya Igartua Aranzabal

The present invention provides a method and a device for determining the degradation of a used oil. The method of the invention is based on calculating the components in the red, green and blue transmission spectral bands I, Iand Iof the unused oil, carrying out a number of measurements of the transmittance of the same oil after use, calculating the colour indices of the used oil and the reference colour index as CI=1&#xd7;I+0.5&#xd7;I+0.5ICI=1&#xd7;I0.5&#xd7;I+0.5Iand obtaining the overall degradation value as OD(%)=100&#x2212;100&#xd7;log(CI/CI). By virtue of the method and the corresponding device, real-time monitoring of oil degradation is facilitated.

Method and device for determining the state of degradation of a lubricant oil

The invention consists of a measurement device for measuring the force applied by a contact member on the surface of a sample, comprising a vacuum or controlled atmosphere chamber in which there are housed the sample and the contact member, mechanical means for transmitting the force exerted by the contact member in the form of the displacement of one or several flexible members and one or several sensors suitable for measuring said displacement. The device comprises motor-driven linear micropositioners incorporated inside the vacuum or controlled atmosphere chamber for positioning sensor(s). As a result of the system, it is not necessary to break the vacuum to calibrate the sensors, saving time and facilitating the measurement.

Force measuring device

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Guipúzcoa, Spain

Ana Aranzabe Garcia