Methods and devices for acquiring an oil sample and monitoring the quality thereof

Methods and devices are disclosed which can provide an indication of oil quality by measuring a capacitive property of the oil. The methods and/or devices may use a sample acquisition probe comprising a microvolume oil acquisition basin with a capacitive sensing element that is located on the floor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GONZALEZ, BERNARD A, YU, STEVEN Y, MAHMOODI, ABOLGHASSEM
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Methods and devices are disclosed which can provide an indication of oil quality by measuring a capacitive property of the oil. The methods and/or devices may use a sample acquisition probe comprising a microvolume oil acquisition basin with a capacitive sensing element that is located on the floor of the basin and that is laterally bounded by an oleophilic wetting feature. The methods may involve immersing a sample acquisition probe at least partially into a supply of oil and withdrawing the probe from the supply of oil such that a microvolume oil sample is retained within a microvolume oil acquisition basin of the probe, and measuring a capacitive property of the microvolume oil sample with a capacitive sensing element that is located in the basin.