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Design and test of a MEMS-based oil quality sensor

  • A major problem in the automotive sector is dealing with used hydraulic oil. Since this oil loses its purity over time, it must be changed. In most cases, the condition of the oil is not really checked, but is changed after a certain number of kilometers. It is possible that intact hydraulic oil is wasted in the process. Until now, there is no cost-effective method to check the purity on hydraulic oils, so there is nothing left but to remove all of the oil. The purpose of this work is to develop a measuring station for a MEMS-based oil quality sensor. With the help of the oil quality sensor, deviations of aged hydraulic oils shall be investigated. An infrared light source and a Fabri-Perot spectrum sensor will be used for more accurate detection of deviations in aged hydraulic oil. The goal is to clarify whether it is possible to use wavelength spectra to detect differences in aged hydraulic oil. To do this, a suitable Fabri-Perot spectrum sensor and a light source with the appropriate wavelength range were carefully selected. Furthermore, a measurement setup for static measurements was worked out. Subsequently, measurements were carried out with and without hydraulic oil and the measured data was compared with reference data. Finally, differences in the aged hydraulic oil could be determined by means of light wave measurements.

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Metadaten
Author:Sergej Podvitelskij
URN:https://urn:nbn:de:bsz:fn1-opus4-76352
ISSN:2750-2619
Parent Title (English):HFU Master research projects
Document Type:Contribution to a Periodical
Language:English
Year of Completion:2021
Release Date:2021/11/22
Volume:1.2021
Issue:1/2
Article Number:1000
Page Number:3
Degree Program:MZT - Mikromedizintechnik
Open-Access-Status: Open Access 
Journals:HFU Master research projects
Licence (German):License LogoUrheberrechtlich geschützt