Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Development of Dipstick-Gage-Type Small Sensor Equipped with Individual Control Circuit for Detecting Engine Oil Deterioration

전용제어회로를 적용한 딥스틱게이지형 소형 엔진열화감지센서 개발

  • 전상명 (호서대학교 기계공학부 자동차공학전공)
  • Received : 2013.02.27
  • Accepted : 2013.04.02
  • Published : 2013.06.30
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Abstract

In this study, several sensor parts used to obtain better signal stability are designed, a separate control circuit for the sensor is developed, and the results obtained using this control circuit are analyzed. The capacitances of the whole sensor system are measured using the control circuit connected to an improved flexible printed circuit board and an asymmetric dual sensor coated with a ceramic material. To realize good discrimination for a small change in the measured capacitance as the engine oil deteriorates, a commercial application-specific integrated circuit is installed on the control circuit as a capacitance-to-digital converter. The absolute error of a measured signal is found to be approximately ${\pm}4fF$.

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Acknowledgement

Supported by : 중소기업청

References

  1. Chun, S. M. "The Prototype Development of an Engine Oil Deterioration Sensor Installed Inside an Oil Filter", The Korean Society of Tribologists & Lubrication Engineers, Vol. 24, No. 2, pp. 82-89, 2008.
  2. Chun, S. M., "The Prototype Development II of an Engine Oil Deterioration Sensor Installed Inside an Oil Filter", The Korean Society of Tribologists & Lubrication Engineers, Vol. 24, No. 4, pp. 170-178, 2008.
  3. Chun, S. M., "Development of an Engine Oil Quality Monitoring System", Journal of the KSTLE, Vol. 27, No. 3, June 2011, pp. 125-133. https://doi.org/10.9725/kstle.2011.27.3.125
  4. Chun, S. M., "Engine Oil Degradation Sensor of Dipstick Gage Type and Engine Oil Degradation Monitoring System Using the Same", Patent Application Number 10-2011-0110947, The Korean Intellectual Property Office, 28 Oct., 2011.
  5. Chun, S. M., "Development of a Dipstick-Gage-Type Small Engine-Oil- Deterioration Detection Sensor", The Korean Society of Tribologists & Lubrication Engineers, Vol. 29, No. 2, pp. 77-84, 2013. https://doi.org/10.9725/kstle.2013.29.2.077

Cited by

  1. Development of Oil Change Warning Algorithm and Display Device vol.30, pp.3, 2014, https://doi.org/10.9725/kstle.2014.30.3.168
  2. Analysis of Test Results for Small Dipstick-Gage-Type Engine-Oil-Deterioration-Detection Sensor vol.30, pp.3, 2014, https://doi.org/10.9725/kstle.2014.30.3.156