Practical online condition monitoring of gearbox oil using non-dispersive infra-red sensors

Research output: Contribution to conferenceProceedingpeer-review

2 Citations (Scopus)
113 Downloads (Pure)


A study has been carried out on the feasibility of using nondispersive infra-red (NDIR) analysis for online condition monitoring of the degradation of wind turbine gearbox oil. In particular, the effects of varying the size of the gap through which the oil flows was analysed, with considerably larger gaps of 1-3mm used than reported elsewhere. Due to the high viscosity of gearbox oil, a large gap size is desirable for online monitoring. Old and new oil were found to produce a different output from the detector, suggesting that online condition monitoring of oil using NDIR is viable with large gap sizes, although the largest gap size produced some anomalous results.
Original languageEnglish
Number of pages6
Publication statusPublished - 25 Sep 2014
EventIET Renewable Power Generation Conference (RPG 2014) - Naples, Italy
Duration: 24 Sep 201425 Sep 2014


ConferenceIET Renewable Power Generation Conference (RPG 2014)


  • infrared detectors
  • condition monitoring
  • gears
  • wind turbines
  • lubricating oils
  • gearbox oil
  • oil analysis
  • non-dispersive infra-red (NDIR)

Cite this